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

   1 // Copyright 2011 Google Inc. All Rights Reserved.
   2 // Some Parts Copyright 2013 Dominik Köppl
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 package com.hughes.android.dictionary;
  16
  17 import android.annotation.SuppressLint;
  18 import android.app.Dialog;
  19 import android.app.SearchManager;
  20 import android.content.Context;
  21 import android.content.Intent;
  22 import android.content.SharedPreferences;
  23 import android.graphics.Color;
  24 import android.graphics.Typeface;
  25 import android.net.Uri;
  26 import android.os.Bundle;
  27 import android.os.Handler;
  28 import android.preference.PreferenceManager;
  29 import android.speech.tts.TextToSpeech;
  30 import android.speech.tts.TextToSpeech.OnInitListener;
  31 import android.support.v4.view.MenuItemCompat;
  32 import android.support.v7.app.ActionBar;
  33 import android.support.v7.app.ActionBarActivity;
  34 import android.support.v7.widget.SearchView;
  35 import android.support.v7.widget.SearchView.OnQueryTextListener;
  36 import android.support.v7.widget.Toolbar;
  37 import android.text.ClipboardManager;
  38 import android.text.Spannable;
  39 import android.text.method.LinkMovementMethod;
  40 import android.text.style.ClickableSpan;
  41 import android.text.style.StyleSpan;
  42 import android.util.Log;
  43 import android.util.TypedValue;
  44 import android.view.ContextMenu;
  45 import android.view.ContextMenu.ContextMenuInfo;
  46 import android.view.Gravity;
  47 import android.view.KeyEvent;
  48 import android.view.Menu;
  49 import android.view.MenuItem;
  50 import android.view.MenuItem.OnMenuItemClickListener;
  51 import android.view.MotionEvent;
  52 import android.view.View;
  53 import android.view.View.OnClickListener;
  54 import android.view.View.OnLongClickListener;
  55 import android.view.ViewGroup;
  56 import android.view.WindowManager;
  57 import android.view.inputmethod.EditorInfo;
  58 import android.view.inputmethod.InputMethodManager;
  59 import android.widget.AdapterView;
  60 import android.widget.AdapterView.AdapterContextMenuInfo;
  61 import android.widget.AdapterView.OnItemClickListener;
  62 import android.widget.BaseAdapter;
  63 import android.widget.Button;
  64 import android.widget.FrameLayout;
  65 import android.widget.ImageButton;
  66 import android.widget.ImageView;
  67 import android.widget.ImageView.ScaleType;
  68 import android.widget.LinearLayout;
  69 import android.widget.ListAdapter;
  70 import android.widget.ListView;
  71 import android.widget.TableLayout;
  72 import android.widget.TableRow;
  73 import android.widget.TextView;
  74 import android.widget.TextView.BufferType;
  75 import android.widget.Toast;
  76
  77 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  78 import com.hughes.android.dictionary.engine.Dictionary;
  79 import com.hughes.android.dictionary.engine.EntrySource;
  80 import com.hughes.android.dictionary.engine.HtmlEntry;
  81 import com.hughes.android.dictionary.engine.Index;
  82 import com.hughes.android.dictionary.engine.Index.IndexEntry;
  83 import com.hughes.android.dictionary.engine.Language.LanguageResources;
  84 import com.hughes.android.dictionary.engine.PairEntry;
  85 import com.hughes.android.dictionary.engine.PairEntry.Pair;
  86 import com.hughes.android.dictionary.engine.RowBase;
  87 import com.hughes.android.dictionary.engine.TokenRow;
  88 import com.hughes.android.dictionary.engine.TransliteratorManager;
  89 import com.hughes.android.util.IntentLauncher;
  90 import com.hughes.android.util.NonLinkClickableSpan;
  91 import com.hughes.util.StringUtil;
  92
  93 import java.io.File;
  94 import java.io.FileWriter;
  95 import java.io.IOException;
  96 import java.io.PrintWriter;
  97 import java.io.RandomAccessFile;
  98 import java.text.SimpleDateFormat;
  99 import java.util.Arrays;
 100 import java.util.Collections;
 101 import java.util.Date;
 102 import java.util.HashMap;
 103 import java.util.LinkedHashSet;
 104 import java.util.List;
 105 import java.util.Locale;
 106 import java.util.Random;
 107 import java.util.Set;
 108 import java.util.concurrent.Executor;
 109 import java.util.concurrent.Executors;
 110 import java.util.concurrent.ThreadFactory;
 111 import java.util.concurrent.atomic.AtomicBoolean;
 112 import java.util.regex.Matcher;
 113 import java.util.regex.Pattern;
 114
 115 public class DictionaryActivity extends ActionBarActivity {
 116
 117     static final String LOG = "QuickDic";
 118
 119     DictionaryApplication application;
 120
 121     File dictFile = null;
 122     RandomAccessFile dictRaf = null;
 123
 124     Dictionary dictionary = null;
 125
 126     int indexIndex = 0;
 127
 128     Index index = null;
 129
 130     List<RowBase> rowsToShow = null; // if not null, just show these rows.
 131
 132     final Random rand = new Random();
 133
 134     final Handler uiHandler = new Handler();
 135
 136     private final Executor searchExecutor = Executors.newSingleThreadExecutor(new ThreadFactory() {
 137         @Override
 138         public Thread newThread(Runnable r) {
 139             return new Thread(r, "searchExecutor");
 140         }
 141     });
 142
 143     private SearchOperation currentSearchOperation = null;
 144
 145     TextToSpeech textToSpeech;
 146     volatile boolean ttsReady;
 147
 148     Typeface typeface;
 149     DictionaryApplication.Theme theme = DictionaryApplication.Theme.LIGHT;
 150     int textColorFg = Color.BLACK;
 151     int fontSizeSp;
 152
 153     private ListView listView;
 154     private ListView getListView() {
 155         if (listView == null) {
 156             listView = (ListView)findViewById(android.R.id.list);
 157         }
 158         return listView;
 159     }
 160
 161     private void setListAdapter(ListAdapter adapter) {
 162         getListView().setAdapter(adapter);
 163     }
 164
 165     private ListAdapter getListAdapter() {
 166         return getListView().getAdapter();
 167     }
 168
 169     SearchView searchView;
 170     ImageButton languageButton;
 171     SearchView.OnQueryTextListener onQueryTextListener;
 172
 173     MenuItem nextWordMenuItem, previousWordMenuItem, randomWordMenuItem;
 174
 175     // Never null.
 176     private File wordList = null;
 177     private boolean saveOnlyFirstSubentry = false;
 178     private boolean clickOpensContextMenu = false;
 179
 180     // Visible for testing.
 181     ListAdapter indexAdapter = null;
 182
 183     /**
 184      * For some languages, loading the transliterators used in this search takes
 185      * a long time, so we fire it up on a different thread, and don't invoke it
 186      * from the main thread until it's already finished once.
 187      */
 188     private volatile boolean indexPrepFinished = false;
 189
 190     public DictionaryActivity() {
 191     }
 192
 193     public static Intent getLaunchIntent(Context c, final File dictFile, final String indexShortName,
 194             final String searchToken) {
 195         final Intent intent = new Intent(c, DictionaryActivity.class);
 196         intent.putExtra(C.DICT_FILE, dictFile.getPath());
 197         intent.putExtra(C.INDEX_SHORT_NAME, indexShortName);
 198         intent.putExtra(C.SEARCH_TOKEN, searchToken);
 199         return intent;
 200     }
 201
 202     @Override
 203     protected void onSaveInstanceState(final Bundle outState) {
 204         super.onSaveInstanceState(outState);
 205         Log.d(LOG, "onSaveInstanceState: " + searchView.getQuery().toString());
 206         outState.putString(C.INDEX_SHORT_NAME, index.shortName);
 207         outState.putString(C.SEARCH_TOKEN, searchView.getQuery().toString());
 208     }
 209
 210     @Override
 211     public void onCreate(Bundle savedInstanceState) {
 212         // This needs to be before super.onCreate, otherwise ActionbarSherlock
 213         // doesn't makes the background of the actionbar white when you're
 214         // in the dark theme.
 215         setTheme(((DictionaryApplication) getApplication()).getSelectedTheme().themeId);
 216
 217         Log.d(LOG, "onCreate:" + this);
 218         super.onCreate(savedInstanceState);
 219
 220         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 221
 222         // Don't auto-launch if this fails.
 223         prefs.edit().remove(C.DICT_FILE).commit();
 224
 225         setContentView(R.layout.dictionary_activity);
 226
 227         application = (DictionaryApplication) getApplication();
 228         theme = application.getSelectedTheme();
 229         textColorFg = getResources().getColor(theme.tokenRowFgColor);
 230
 231         final Intent intent = getIntent();
 232         String intentAction = intent.getAction();
 233         /**
 234          * @author Dominik Köppl Querying the Intent
 235          *         com.hughes.action.ACTION_SEARCH_DICT is the advanced query
 236          *         Arguments: SearchManager.QUERY -> the phrase to search from
 237          *         -> language in which the phrase is written to -> to which
 238          *         language shall be translated
 239          */
 240         if (intentAction != null && intentAction.equals("com.hughes.action.ACTION_SEARCH_DICT"))
 241         {
 242             String query = intent.getStringExtra(SearchManager.QUERY);
 243             String from = intent.getStringExtra("from");
 244             if (from != null)
 245                 from = from.toLowerCase(Locale.US);
 246             String to = intent.getStringExtra("to");
 247             if (to != null)
 248                 to = to.toLowerCase(Locale.US);
 249             if (query != null)
 250             {
 251                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 252             }
 253             if (intent.getStringExtra(C.DICT_FILE) == null && (from != null || to != null))
 254             {
 255                 Log.d(LOG, "DictSearch: from: " + from + " to " + to);
 256                 List<DictionaryInfo> dicts = application.getDictionariesOnDevice(null);
 257                 for (DictionaryInfo info : dicts)
 258                 {
 259                     boolean hasFrom = from == null;
 260                     boolean hasTo = to == null;
 261                     for (IndexInfo index : info.indexInfos)
 262                     {
 263                         if (!hasFrom && index.shortName.toLowerCase(Locale.US).equals(from))
 264                             hasFrom = true;
 265                         if (!hasTo && index.shortName.toLowerCase(Locale.US).equals(to))
 266                             hasTo = true;
 267                     }
 268                     if (hasFrom && hasTo)
 269                     {
 270                         if (from != null)
 271                         {
 272                             int which_index = 0;
 273                             for (; which_index < info.indexInfos.size(); ++which_index)
 274                             {
 275                                 if (info.indexInfos.get(which_index).shortName.toLowerCase(
 276                                         Locale.US).equals(from))
 277                                     break;
 278                             }
 279                             intent.putExtra(C.INDEX_SHORT_NAME,
 280                                     info.indexInfos.get(which_index).shortName);
 281
 282                         }
 283                         intent.putExtra(C.DICT_FILE, application.getPath(info.uncompressedFilename)
 284                                 .toString());
 285                         break;
 286                     }
 287                 }
 288
 289             }
 290         }
 291         /**
 292          * @author Dominik Köppl Querying the Intent Intent.ACTION_SEARCH is a
 293          *         simple query Arguments follow from android standard (see
 294          *         documentation)
 295          */
 296         if (intentAction != null && intentAction.equals(Intent.ACTION_SEARCH))
 297         {
 298             String query = intent.getStringExtra(SearchManager.QUERY);
 299             if (query != null)
 300                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 301         }
 302         /**
 303          * @author Dominik Köppl If no dictionary is chosen, use the default
 304          *         dictionary specified in the preferences If this step does
 305          *         fail (no default directory specified), show a toast and
 306          *         abort.
 307          */
 308         if (intent.getStringExtra(C.DICT_FILE) == null)
 309         {
 310             String dictfile = prefs.getString(getString(R.string.defaultDicKey), null);
 311             if (dictfile != null)
 312                 intent.putExtra(C.DICT_FILE, application.getPath(dictfile).toString());
 313         }
 314         String dictFilename = intent.getStringExtra(C.DICT_FILE);
 315
 316         if (dictFilename == null)
 317         {
 318             Toast.makeText(this, getString(R.string.no_dict_file), Toast.LENGTH_LONG).show();
 319             startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 320             finish();
 321             return;
 322         }
 323         if (dictFilename != null)
 324             dictFile = new File(dictFilename);
 325
 326         ttsReady = false;
 327         textToSpeech = new TextToSpeech(getApplicationContext(), new OnInitListener() {
 328             @Override
 329             public void onInit(int status) {
 330                 ttsReady = true;
 331                 updateTTSLanguage();
 332             }
 333         });
 334
 335         try {
 336             final String name = application.getDictionaryName(dictFile.getName());
 337             this.setTitle("QuickDic: " + name);
 338             dictRaf = new RandomAccessFile(dictFile, "r");
 339             dictionary = new Dictionary(dictRaf);
 340         } catch (Exception e) {
 341             Log.e(LOG, "Unable to load dictionary.", e);
 342             if (dictRaf != null) {
 343                 try {
 344                     dictRaf.close();
 345                 } catch (IOException e1) {
 346                     Log.e(LOG, "Unable to close dictRaf.", e1);
 347                 }
 348                 dictRaf = null;
 349             }
 350             Toast.makeText(this, getString(R.string.invalidDictionary, "", e.getMessage()),
 351                     Toast.LENGTH_LONG).show();
 352             startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 353             finish();
 354             return;
 355         }
 356         String targetIndex = intent.getStringExtra(C.INDEX_SHORT_NAME);
 357         if (savedInstanceState != null && savedInstanceState.getString(C.INDEX_SHORT_NAME) != null) {
 358             targetIndex = savedInstanceState.getString(C.INDEX_SHORT_NAME);
 359         }
 360         indexIndex = 0;
 361         for (int i = 0; i < dictionary.indices.size(); ++i) {
 362             if (dictionary.indices.get(i).shortName.equals(targetIndex)) {
 363                 indexIndex = i;
 364                 break;
 365             }
 366         }
 367         Log.d(LOG, "Loading index " + indexIndex);
 368         index = dictionary.indices.get(indexIndex);
 369         setListAdapter(new IndexAdapter(index));
 370
 371         // Pre-load the collators.
 372         new Thread(new Runnable() {
 373             public void run() {
 374                 android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_BACKGROUND);
 375                 final long startMillis = System.currentTimeMillis();
 376                 try {
 377                     TransliteratorManager.init(new TransliteratorManager.Callback() {
 378                         @Override
 379                         public void onTransliteratorReady() {
 380                             uiHandler.post(new Runnable() {
 381                                 @Override
 382                                 public void run() {
 383                                     onSearchTextChange(searchView.getQuery().toString());
 384                                 }
 385                             });
 386                         }
 387                     });
 388
 389                     for (final Index index : dictionary.indices) {
 390                         final String searchToken = index.sortedIndexEntries.get(0).token;
 391                         final IndexEntry entry = index.findExact(searchToken);
 392                         if (entry == null || !searchToken.equals(entry.token)) {
 393                             Log.e(LOG, "Couldn't find token: " + searchToken + ", " + (entry == null ? "null" : entry.token));
 394                         }
 395                     }
 396                     indexPrepFinished = true;
 397                 } catch (Exception e) {
 398                     Log.w(LOG,
 399                             "Exception while prepping.  This can happen if dictionary is closed while search is happening.");
 400                 }
 401                 Log.d(LOG, "Prepping indices took:" + (System.currentTimeMillis() - startMillis));
 402             }
 403         }).start();
 404
 405         String fontName = prefs.getString(getString(R.string.fontKey), "FreeSerif.otf.jpg");
 406         if ("SYSTEM".equals(fontName)) {
 407             typeface = Typeface.DEFAULT;
 408         } else if ("SERIF".equals(fontName)) {
 409             typeface = Typeface.SERIF;
 410         } else if ("SANS_SERIF".equals(fontName)) {
 411             typeface = Typeface.SANS_SERIF;
 412         } else if ("MONOSPACE".equals(fontName)) {
 413             typeface = Typeface.MONOSPACE;
 414         } else {
 415             if ("FreeSerif.ttf.jpg".equals(fontName)) {
 416                 fontName = "FreeSerif.otf.jpg";
 417             }
 418             try {
 419                 typeface = Typeface.createFromAsset(getAssets(), fontName);
 420             } catch (Exception e) {
 421                 Log.w(LOG, "Exception trying to use typeface, using default.", e);
 422                 Toast.makeText(this, getString(R.string.fontFailure, e.getLocalizedMessage()),
 423                         Toast.LENGTH_LONG).show();
 424             }
 425         }
 426         if (typeface == null) {
 427             Log.w(LOG, "Unable to create typeface, using default.");
 428             typeface = Typeface.DEFAULT;
 429         }
 430         final String fontSize = prefs.getString(getString(R.string.fontSizeKey), "14");
 431         try {
 432             fontSizeSp = Integer.parseInt(fontSize.trim());
 433         } catch (NumberFormatException e) {
 434             fontSizeSp = 14;
 435         }
 436
 437         // ContextMenu.
 438         registerForContextMenu(getListView());
 439
 440         // Cache some prefs.
 441         wordList = application.getWordListFile();
 442         saveOnlyFirstSubentry = prefs.getBoolean(getString(R.string.saveOnlyFirstSubentryKey),
 443                 false);
 444         clickOpensContextMenu = prefs.getBoolean(getString(R.string.clickOpensContextMenuKey),
 445                 false);
 446         Log.d(LOG, "wordList=" + wordList + ", saveOnlyFirstSubentry=" + saveOnlyFirstSubentry);
 447
 448         onCreateSetupActionBarAndSearchView();
 449
 450         // Set the search text from the intent, then the saved state.
 451         String text = getIntent().getStringExtra(C.SEARCH_TOKEN);
 452         if (savedInstanceState != null) {
 453             text = savedInstanceState.getString(C.SEARCH_TOKEN);
 454         }
 455         if (text == null) {
 456             text = "";
 457         }
 458         setSearchText(text, true);
 459         Log.d(LOG, "Trying to restore searchText=" + text);
 460
 461         setDictionaryPrefs(this, dictFile, index.shortName, searchView.getQuery().toString());
 462
 463         updateLangButton();
 464         searchView.requestFocus();
 465
 466         // http://stackoverflow.com/questions/2833057/background-listview-becomes-black-when-scrolling
 467 //        getListView().setCacheColorHint(0);
 468     }
 469
 470     private void onCreateSetupActionBarAndSearchView() {
 471         ActionBar actionBar = getSupportActionBar();
 472         actionBar.setDisplayShowTitleEnabled(false);
 473         actionBar.setDisplayShowHomeEnabled(false);
 474         actionBar.setDisplayHomeAsUpEnabled(false);
 475
 476         final LinearLayout customSearchView = new LinearLayout(getSupportActionBar().getThemedContext());
 477
 478         final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 479                 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 480         customSearchView.setLayoutParams(layoutParams);
 481
 482         listView.setOnItemClickListener(new OnItemClickListener() {
 483             @Override
 484             public void onItemClick(AdapterView<?> parent, View view, int row, long id) {
 485                 onListItemClick(getListView(), view, row, id);
 486             }
 487         });
 488
 489         languageButton = new ImageButton(customSearchView.getContext());
 490         languageButton.setScaleType(ScaleType.FIT_CENTER);
 491         languageButton.setOnClickListener(new OnClickListener() {
 492             @Override
 493             public void onClick(View arg0) {
 494                 onLanguageButtonClick();
 495             }
 496         });
 497         languageButton.setOnLongClickListener(new OnLongClickListener() {
 498             @Override
 499             public boolean onLongClick(View v) {
 500                 onLanguageButtonLongClick(v.getContext());
 501                 return true;
 502             }
 503         });
 504         languageButton.setAdjustViewBounds(true);
 505         LinearLayout.LayoutParams lpb = new LinearLayout.LayoutParams(application.languageButtonPixels, LinearLayout.LayoutParams.MATCH_PARENT);
 506         customSearchView.addView(languageButton, lpb);
 507
 508         searchView = new SearchView(getSupportActionBar().getThemedContext());
 509         searchView.setIconifiedByDefault(false);
 510         // searchView.setIconified(false); // puts the magnifying glass in the
 511         // wrong place.
 512         searchView.setQueryHint(getString(R.string.searchText));
 513         searchView.setSubmitButtonEnabled(false);
 514         searchView.setImeOptions(
 515                 EditorInfo.IME_ACTION_DONE |
 516                         EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 517                         // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 518                         // 11
 519                         EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 520         onQueryTextListener = new OnQueryTextListener() {
 521             @Override
 522             public boolean onQueryTextSubmit(String query) {
 523                 Log.d(LOG, "OnQueryTextListener: onQueryTextSubmit: " + searchView.getQuery());
 524                 hideKeyboard();
 525                 return true;
 526             }
 527
 528             @Override
 529             public boolean onQueryTextChange(String newText) {
 530                 Log.d(LOG, "OnQueryTextListener: onQueryTextChange: " + searchView.getQuery());
 531                 onSearchTextChange(searchView.getQuery().toString());
 532                 return true;
 533             }
 534         };
 535         searchView.setOnQueryTextListener(onQueryTextListener);
 536         searchView.setFocusable(true);
 537         LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(0,
 538                 FrameLayout.LayoutParams.WRAP_CONTENT, 1);
 539         customSearchView.addView(searchView, lp);
 540
 541         actionBar.setCustomView(customSearchView);
 542         actionBar.setDisplayShowCustomEnabled(true);
 543
 544         // Avoid wasting space on large left inset
 545         Toolbar tb = (Toolbar)customSearchView.getParent();
 546         tb.setContentInsetsRelative(0, 0);
 547     }
 548
 549     @Override
 550     protected void onResume() {
 551         Log.d(LOG, "onResume");
 552         super.onResume();
 553         if (PreferenceActivity.prefsMightHaveChanged) {
 554             PreferenceActivity.prefsMightHaveChanged = false;
 555             finish();
 556             startActivity(getIntent());
 557         }
 558         showKeyboard();
 559     }
 560
 561     @Override
 562     protected void onPause() {
 563         super.onPause();
 564     }
 565
 566     @Override
 567     /**
 568      * Invoked when MyWebView returns, since the user might have clicked some
 569      * hypertext in the MyWebView.
 570      */
 571     protected void onActivityResult(int requestCode, int resultCode, Intent result) {
 572         super.onActivityResult(requestCode, resultCode, result);
 573         if (result != null && result.hasExtra(C.SEARCH_TOKEN)) {
 574             Log.d(LOG, "onActivityResult: " + result.getStringExtra(C.SEARCH_TOKEN));
 575             jumpToTextFromHyperLink(result.getStringExtra(C.SEARCH_TOKEN), indexIndex);
 576         }
 577     }
 578
 579     private static void setDictionaryPrefs(final Context context, final File dictFile,
 580             final String indexShortName, final String searchToken) {
 581         final SharedPreferences.Editor prefs = PreferenceManager.getDefaultSharedPreferences(
 582                 context).edit();
 583         prefs.putString(C.DICT_FILE, dictFile.getPath());
 584         prefs.putString(C.INDEX_SHORT_NAME, indexShortName);
 585         prefs.putString(C.SEARCH_TOKEN, ""); // Don't need to save search token.
 586         prefs.commit();
 587     }
 588
 589     @Override
 590     protected void onDestroy() {
 591         super.onDestroy();
 592         if (dictRaf == null) {
 593             return;
 594         }
 595
 596         final SearchOperation searchOperation = currentSearchOperation;
 597         currentSearchOperation = null;
 598
 599         // Before we close the RAF, we have to wind the current search down.
 600         if (searchOperation != null) {
 601             Log.d(LOG, "Interrupting search to shut down.");
 602             currentSearchOperation = null;
 603             searchOperation.interrupted.set(true);
 604         }
 605
 606         try {
 607             Log.d(LOG, "Closing RAF.");
 608             dictRaf.close();
 609         } catch (IOException e) {
 610             Log.e(LOG, "Failed to close dictionary", e);
 611         }
 612         dictRaf = null;
 613     }
 614
 615     // --------------------------------------------------------------------------
 616     // Buttons
 617     // --------------------------------------------------------------------------
 618
 619     private void showKeyboard() {
 620         // For some reason, this doesn't always work the first time.
 621         // One way to replicate the problem:
 622         // Press the "task switch" button repeatedly to pause and resume
 623         for (int delay = 1; delay <= 101; delay += 100) {
 624             searchView.postDelayed(new Runnable() {
 625                 @Override
 626                 public void run() {
 627                     Log.d(LOG, "Trying to show soft keyboard.");
 628                     final boolean searchTextHadFocus = searchView.hasFocus();
 629                     searchView.requestFocusFromTouch();
 630                     final InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 631                     manager.showSoftInput(searchView, InputMethodManager.SHOW_IMPLICIT);
 632                     if (!searchTextHadFocus) {
 633                         defocusSearchText();
 634                     }
 635                 }
 636             }, delay);
 637         }
 638     }
 639
 640     private void hideKeyboard() {
 641         Log.d(LOG, "Hide soft keyboard.");
 642         searchView.clearFocus();
 643         InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 644         manager.hideSoftInputFromWindow(searchView.getWindowToken(), 0);
 645     }
 646
 647     void updateLangButton() {
 648         final LanguageResources languageResources =
 649                 DictionaryApplication.isoCodeToResources.get(index.shortName);
 650         if (languageResources != null && languageResources.flagId != 0) {
 651             languageButton.setImageResource(languageResources.flagId);
 652         } else {
 653             if (indexIndex % 2 == 0) {
 654                 languageButton.setImageResource(android.R.drawable.ic_media_next);
 655             } else {
 656                 languageButton.setImageResource(android.R.drawable.ic_media_previous);
 657             }
 658         }
 659         updateTTSLanguage();
 660     }
 661
 662     private void updateTTSLanguage() {
 663         if (!ttsReady || index == null || textToSpeech == null) {
 664             Log.d(LOG, "Can't updateTTSLanguage.");
 665             return;
 666         }
 667         final Locale locale = new Locale(index.sortLanguage.getIsoCode());
 668         Log.d(LOG, "Setting TTS locale to: " + locale);
 669         final int ttsResult = textToSpeech.setLanguage(locale);
 670         if (ttsResult != TextToSpeech.LANG_AVAILABLE &&
 671                 ttsResult != TextToSpeech.LANG_COUNTRY_AVAILABLE) {
 672             Log.e(LOG, "TTS not available in this language: ttsResult=" + ttsResult);
 673         }
 674     }
 675
 676     void onLanguageButtonClick() {
 677         if (dictionary.indices.size() == 1) {
 678             // No need to work to switch indices.
 679             return;
 680         }
 681         if (currentSearchOperation != null) {
 682             currentSearchOperation.interrupted.set(true);
 683             currentSearchOperation = null;
 684         }
 685         setIndexAndSearchText((indexIndex + 1) % dictionary.indices.size(),
 686                 searchView.getQuery().toString());
 687     }
 688
 689     void onLanguageButtonLongClick(final Context context) {
 690         final Dialog dialog = new Dialog(context);
 691         dialog.setContentView(R.layout.select_dictionary_dialog);
 692         dialog.setTitle(R.string.selectDictionary);
 693
 694         final List<DictionaryInfo> installedDicts = application.getDictionariesOnDevice(null);
 695
 696         ListView listView = (ListView) dialog.findViewById(android.R.id.list);
 697         final Button button = new Button(listView.getContext());
 698         final String name = getString(R.string.dictionaryManager);
 699         button.setText(name);
 700         final IntentLauncher intentLauncher = new IntentLauncher(listView.getContext(),
 701                 DictionaryManagerActivity.getLaunchIntent(getApplicationContext())) {
 702             @Override
 703             protected void onGo() {
 704                 dialog.dismiss();
 705                 DictionaryActivity.this.finish();
 706             }
 707         };
 708         button.setOnClickListener(intentLauncher);
 709         listView.addHeaderView(button);
 710
 711         listView.setAdapter(new BaseAdapter() {
 712             @Override
 713             public View getView(int position, View convertView, ViewGroup parent) {
 714                 final DictionaryInfo dictionaryInfo = getItem(position);
 715
 716                 final LinearLayout result = new LinearLayout(parent.getContext());
 717
 718                 for (int i = 0; i < dictionaryInfo.indexInfos.size(); ++i) {
 719                     final IndexInfo indexInfo = dictionaryInfo.indexInfos.get(i);
 720                     final View button = application.createButton(parent.getContext(),
 721                             dictionaryInfo, indexInfo);
 722                     final IntentLauncher intentLauncher = new IntentLauncher(parent.getContext(),
 723                             getLaunchIntent(getApplicationContext(),
 724                                     application.getPath(dictionaryInfo.uncompressedFilename),
 725                                     indexInfo.shortName, searchView.getQuery().toString())) {
 726                         @Override
 727                         protected void onGo() {
 728                             dialog.dismiss();
 729                             DictionaryActivity.this.finish();
 730                         }
 731                     };
 732                     button.setOnClickListener(intentLauncher);
 733                     result.addView(button);
 734                 }
 735
 736                 final TextView nameView = new TextView(parent.getContext());
 737                 final String name = application
 738                         .getDictionaryName(dictionaryInfo.uncompressedFilename);
 739                 nameView.setText(name);
 740                 final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 741                         ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 742                 layoutParams.width = 0;
 743                 layoutParams.weight = 1.0f;
 744                 nameView.setLayoutParams(layoutParams);
 745                 nameView.setGravity(Gravity.CENTER_VERTICAL);
 746                 result.addView(nameView);
 747                 return result;
 748             }
 749
 750             @Override
 751             public long getItemId(int position) {
 752                 return position;
 753             }
 754
 755             @Override
 756             public DictionaryInfo getItem(int position) {
 757                 return installedDicts.get(position);
 758             }
 759
 760             @Override
 761             public int getCount() {
 762                 return installedDicts.size();
 763             }
 764         });
 765         dialog.show();
 766     }
 767
 768     void onUpDownButton(final boolean up) {
 769         if (isFiltered()) {
 770             return;
 771         }
 772         final int firstVisibleRow = getListView().getFirstVisiblePosition();
 773         final RowBase row = index.rows.get(firstVisibleRow);
 774         final TokenRow tokenRow = row.getTokenRow(true);
 775         final int destIndexEntry;
 776         if (up) {
 777             if (row != tokenRow) {
 778                 destIndexEntry = tokenRow.referenceIndex;
 779             } else {
 780                 destIndexEntry = Math.max(tokenRow.referenceIndex - 1, 0);
 781             }
 782         } else {
 783             // Down
 784             destIndexEntry = Math.min(tokenRow.referenceIndex + 1, index.sortedIndexEntries.size() - 1);
 785         }
 786         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 787         Log.d(LOG, "onUpDownButton, destIndexEntry=" + dest.token);
 788         setSearchText(dest.token, false);
 789         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 790         defocusSearchText();
 791     }
 792
 793     void onRandomWordButton() {
 794         int destIndexEntry = rand.nextInt(index.sortedIndexEntries.size());
 795         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 796         setSearchText(dest.token, false);
 797         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 798         defocusSearchText();
 799     }
 800
 801     // --------------------------------------------------------------------------
 802     // Options Menu
 803     // --------------------------------------------------------------------------
 804
 805     final Random random = new Random();
 806
 807     @Override
 808     public boolean onCreateOptionsMenu(final Menu menu) {
 809
 810         if (PreferenceManager.getDefaultSharedPreferences(this)
 811                 .getBoolean(getString(R.string.showPrevNextButtonsKey), true)) {
 812             // Next word.
 813             nextWordMenuItem = menu.add(getString(R.string.nextWord))
 814                     .setIcon(R.drawable.arrow_down_float);
 815             MenuItemCompat.setShowAsAction(nextWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
 816             nextWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 817                 @Override
 818                 public boolean onMenuItemClick(MenuItem item) {
 819                     onUpDownButton(false);
 820                     return true;
 821                 }
 822             });
 823
 824             // Previous word.
 825             previousWordMenuItem = menu.add(getString(R.string.previousWord))
 826                     .setIcon(R.drawable.arrow_up_float);
 827             MenuItemCompat.setShowAsAction(previousWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
 828             previousWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 829                 @Override
 830                 public boolean onMenuItemClick(MenuItem item) {
 831                     onUpDownButton(true);
 832                     return true;
 833                 }
 834             });
 835         }
 836
 837         randomWordMenuItem = menu.add(getString(R.string.randomWord));
 838         randomWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 839             @Override
 840             public boolean onMenuItemClick(MenuItem item) {
 841                 onRandomWordButton();
 842                 return true;
 843             }
 844         });
 845
 846         application.onCreateGlobalOptionsMenu(this, menu);
 847
 848         {
 849             final MenuItem dictionaryManager = menu.add(getString(R.string.dictionaryManager));
 850             MenuItemCompat.setShowAsAction(dictionaryManager, MenuItem.SHOW_AS_ACTION_NEVER);
 851             dictionaryManager.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 852                 public boolean onMenuItemClick(final MenuItem menuItem) {
 853                     startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 854                     finish();
 855                     return false;
 856                 }
 857             });
 858         }
 859
 860         {
 861             final MenuItem aboutDictionary = menu.add(getString(R.string.aboutDictionary));
 862             MenuItemCompat.setShowAsAction(aboutDictionary, MenuItem.SHOW_AS_ACTION_NEVER);
 863             aboutDictionary.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 864                 public boolean onMenuItemClick(final MenuItem menuItem) {
 865                     final Context context = getListView().getContext();
 866                     final Dialog dialog = new Dialog(context);
 867                     dialog.setContentView(R.layout.about_dictionary_dialog);
 868                     final TextView textView = (TextView) dialog.findViewById(R.id.text);
 869
 870                     final String name = application.getDictionaryName(dictFile.getName());
 871                     dialog.setTitle(name);
 872
 873                     final StringBuilder builder = new StringBuilder();
 874                     final DictionaryInfo dictionaryInfo = dictionary.getDictionaryInfo();
 875                     dictionaryInfo.uncompressedBytes = dictFile.length();
 876                     if (dictionaryInfo != null) {
 877                         builder.append(dictionaryInfo.dictInfo).append("\n\n");
 878                         builder.append(getString(R.string.dictionaryPath, dictFile.getPath()))
 879                                 .append("\n");
 880                         builder.append(
 881                                 getString(R.string.dictionarySize, dictionaryInfo.uncompressedBytes))
 882                                 .append("\n");
 883                         builder.append(
 884                                 getString(R.string.dictionaryCreationTime,
 885                                         dictionaryInfo.creationMillis)).append("\n");
 886                         for (final IndexInfo indexInfo : dictionaryInfo.indexInfos) {
 887                             builder.append("\n");
 888                             builder.append(getString(R.string.indexName, indexInfo.shortName))
 889                                     .append("\n");
 890                             builder.append(
 891                                     getString(R.string.mainTokenCount, indexInfo.mainTokenCount))
 892                                     .append("\n");
 893                         }
 894                         builder.append("\n");
 895                         builder.append(getString(R.string.sources)).append("\n");
 896                         for (final EntrySource source : dictionary.sources) {
 897                             builder.append(
 898                                     getString(R.string.sourceInfo, source.getName(),
 899                                             source.getNumEntries())).append("\n");
 900                         }
 901                     }
 902                     textView.setText(builder.toString());
 903
 904                     dialog.show();
 905                     final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
 906                     layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
 907                     layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
 908                     dialog.getWindow().setAttributes(layoutParams);
 909                     return false;
 910                 }
 911             });
 912         }
 913
 914         return true;
 915     }
 916
 917     // --------------------------------------------------------------------------
 918     // Context Menu + clicks
 919     // --------------------------------------------------------------------------
 920
 921     @Override
 922     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
 923         AdapterContextMenuInfo adapterContextMenuInfo = (AdapterContextMenuInfo) menuInfo;
 924         final RowBase row = (RowBase) getListAdapter().getItem(adapterContextMenuInfo.position);
 925
 926         final android.view.MenuItem addToWordlist = menu.add(getString(R.string.addToWordList,
 927                 wordList.getName()));
 928         addToWordlist
 929                 .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 930                     public boolean onMenuItemClick(android.view.MenuItem item) {
 931                         onAppendToWordList(row);
 932                         return false;
 933                     }
 934                 });
 935
 936         final android.view.MenuItem share = menu.add("Share");
 937         share.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 938             public boolean onMenuItemClick(android.view.MenuItem item) {
 939                 Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
 940                 shareIntent.setType("text/plain");
 941                 shareIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, row.getTokenRow(true)
 942                         .getToken());
 943                 shareIntent.putExtra(android.content.Intent.EXTRA_TEXT,
 944                         row.getRawText(saveOnlyFirstSubentry));
 945                 startActivity(shareIntent);
 946                 return false;
 947             }
 948         });
 949
 950         final android.view.MenuItem copy = menu.add(android.R.string.copy);
 951         copy.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 952             public boolean onMenuItemClick(android.view.MenuItem item) {
 953                 onCopy(row);
 954                 return false;
 955             }
 956         });
 957
 958         if (selectedSpannableText != null) {
 959             final String selectedText = selectedSpannableText;
 960             final android.view.MenuItem searchForSelection = menu.add(getString(
 961                     R.string.searchForSelection,
 962                     selectedSpannableText));
 963             searchForSelection
 964                     .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 965                         public boolean onMenuItemClick(android.view.MenuItem item) {
 966                             jumpToTextFromHyperLink(selectedText, selectedSpannableIndex);
 967                             return false;
 968                         }
 969                     });
 970             // Rats, this won't be shown:
 971             //searchForSelection.setIcon(R.drawable.abs__ic_search);
 972         }
 973
 974         if (row instanceof TokenRow && ttsReady) {
 975             final android.view.MenuItem speak = menu.add(R.string.speak);
 976             speak.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 977                 @Override
 978                 public boolean onMenuItemClick(android.view.MenuItem item) {
 979                     textToSpeech.speak(((TokenRow) row).getToken(), TextToSpeech.QUEUE_FLUSH,
 980                             new HashMap<String, String>());
 981                     return false;
 982                 }
 983             });
 984         }
 985     }
 986
 987     private void jumpToTextFromHyperLink(
 988             final String selectedText, final int defaultIndexToUse) {
 989         int indexToUse = -1;
 990         for (int i = 0; i < dictionary.indices.size(); ++i) {
 991             final Index index = dictionary.indices.get(i);
 992             if (indexPrepFinished) {
 993                 System.out.println("Doing index lookup: on " + selectedText);
 994                 final IndexEntry indexEntry = index.findExact(selectedText);
 995                 if (indexEntry != null) {
 996                     final TokenRow tokenRow = index.rows.get(indexEntry.startRow)
 997                             .getTokenRow(false);
 998                     if (tokenRow != null && tokenRow.hasMainEntry) {
 999                         indexToUse = i;
1000                         break;
1001                     }
1002                 }
1003             } else {
1004                 Log.w(LOG, "Skipping findExact on index " + index.shortName);
1005             }
1006         }
1007         if (indexToUse == -1) {
1008             indexToUse = defaultIndexToUse;
1009         }
1010         // Without this extra delay, the call to jumpToRow that this
1011         // invokes doesn't always actually have any effect.
1012         final int actualIndexToUse = indexToUse;
1013         getListView().postDelayed(new Runnable() {
1014             @Override
1015             public void run() {
1016                 setIndexAndSearchText(actualIndexToUse, selectedText);
1017             }
1018         }, 100);
1019     }
1020
1021     /**
1022      * Called when user clicks outside of search text, so that they can start
1023      * typing again immediately.
1024      */
1025     void defocusSearchText() {
1026         // Log.d(LOG, "defocusSearchText");
1027         // Request focus so that if we start typing again, it clears the text
1028         // input.
1029         getListView().requestFocus();
1030
1031         // Visual indication that a new keystroke will clear the search text.
1032         // Doesn't seem to work unless searchText has focus.
1033         // searchView.selectAll();
1034     }
1035
1036     protected void onListItemClick(ListView l, View v, int row, long id) {
1037         defocusSearchText();
1038         if (clickOpensContextMenu && dictRaf != null) {
1039             openContextMenu(v);
1040         }
1041     }
1042
1043     @SuppressLint("SimpleDateFormat")
1044     void onAppendToWordList(final RowBase row) {
1045         defocusSearchText();
1046
1047         final StringBuilder rawText = new StringBuilder();
1048         rawText.append(new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(new Date())).append("\t");
1049         rawText.append(index.longName).append("\t");
1050         rawText.append(row.getTokenRow(true).getToken()).append("\t");
1051         rawText.append(row.getRawText(saveOnlyFirstSubentry));
1052         Log.d(LOG, "Writing : " + rawText);
1053
1054         try {
1055             wordList.getParentFile().mkdirs();
1056             final PrintWriter out = new PrintWriter(new FileWriter(wordList, true));
1057             out.println(rawText.toString());
1058             out.close();
1059         } catch (Exception e) {
1060             Log.e(LOG, "Unable to append to " + wordList.getAbsolutePath(), e);
1061             Toast.makeText(this,
1062                     getString(R.string.failedAddingToWordList, wordList.getAbsolutePath()),
1063                     Toast.LENGTH_LONG).show();
1064         }
1065         return;
1066     }
1067
1068     @SuppressWarnings("deprecation")
1069     void onCopy(final RowBase row) {
1070         defocusSearchText();
1071
1072         Log.d(LOG, "Copy, row=" + row);
1073         final StringBuilder result = new StringBuilder();
1074         result.append(row.getRawText(false));
1075         final ClipboardManager clipboardManager = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
1076         clipboardManager.setText(result.toString());
1077         Log.d(LOG, "Copied: " + result);
1078     }
1079
1080     @Override
1081     public boolean onKeyDown(final int keyCode, final KeyEvent event) {
1082         if (event.getUnicodeChar() != 0) {
1083             if (!searchView.hasFocus()) {
1084                 setSearchText("" + (char) event.getUnicodeChar(), true);
1085                 searchView.requestFocus();
1086             }
1087             return true;
1088         }
1089         if (keyCode == KeyEvent.KEYCODE_BACK) {
1090             // Log.d(LOG, "Clearing dictionary prefs.");
1091             // Pretend that we just autolaunched so that we won't do it again.
1092             // DictionaryManagerActivity.lastAutoLaunchMillis =
1093             // System.currentTimeMillis();
1094         }
1095         if (keyCode == KeyEvent.KEYCODE_ENTER) {
1096             Log.d(LOG, "Trying to hide soft keyboard.");
1097             final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
1098             View focus = getCurrentFocus();
1099             if (focus != null) {
1100                 inputManager.hideSoftInputFromWindow(focus.getWindowToken(),
1101                         InputMethodManager.HIDE_NOT_ALWAYS);
1102             }
1103             return true;
1104         }
1105         return super.onKeyDown(keyCode, event);
1106     }
1107
1108     private void setIndexAndSearchText(int newIndex, String newSearchText) {
1109         Log.d(LOG, "Changing index to: " + newIndex);
1110         if (newIndex == -1) {
1111             Log.e(LOG, "Invalid index.");
1112             newIndex = 0;
1113         }
1114         if (newIndex != indexIndex) {
1115             indexIndex = newIndex;
1116             index = dictionary.indices.get(indexIndex);
1117             indexAdapter = new IndexAdapter(index);
1118             setListAdapter(indexAdapter);
1119             Log.d(LOG, "changingIndex, newLang=" + index.longName);
1120             setDictionaryPrefs(this, dictFile, index.shortName, searchView.getQuery().toString());
1121             updateLangButton();
1122         }
1123         setSearchText(newSearchText, true);
1124     }
1125
1126     private void setSearchText(final String text, final boolean triggerSearch) {
1127         Log.d(LOG, "setSearchText, text=" + text + ", triggerSearch=" + triggerSearch);
1128         // Disable the listener, because sometimes it doesn't work.
1129         searchView.setOnQueryTextListener(null);
1130         searchView.setQuery(text, false);
1131         moveCursorToRight();
1132         searchView.setOnQueryTextListener(onQueryTextListener);
1133
1134         // Hide search icon once text is entered
1135         searchView.setIconifiedByDefault(text.length() > 0);
1136         searchView.setIconified(false);
1137
1138         // We don't want to show virtual keyboard when we're changing searchView text programatically:
1139         hideKeyboard();
1140
1141         if (triggerSearch) {
1142             onQueryTextListener.onQueryTextChange(text);
1143         }
1144     }
1145
1146     // private long cursorDelayMillis = 100;
1147     private void moveCursorToRight() {
1148         // if (searchText.getLayout() != null) {
1149         // cursorDelayMillis = 100;
1150         // // Surprising, but this can crash when you rotate...
1151         // Selection.moveToRightEdge(searchView.getQuery(),
1152         // searchText.getLayout());
1153         // } else {
1154         // uiHandler.postDelayed(new Runnable() {
1155         // @Override
1156         // public void run() {
1157         // moveCursorToRight();
1158         // }
1159         // }, cursorDelayMillis);
1160         // cursorDelayMillis = Math.min(10 * 1000, 2 * cursorDelayMillis);
1161         // }
1162     }
1163
1164     // --------------------------------------------------------------------------
1165     // SearchOperation
1166     // --------------------------------------------------------------------------
1167
1168     private void searchFinished(final SearchOperation searchOperation) {
1169         if (searchOperation.interrupted.get()) {
1170             Log.d(LOG, "Search operation was interrupted: " + searchOperation);
1171             return;
1172         }
1173         if (searchOperation != this.currentSearchOperation) {
1174             Log.d(LOG, "Stale searchOperation finished: " + searchOperation);
1175             return;
1176         }
1177
1178         final Index.IndexEntry searchResult = searchOperation.searchResult;
1179         Log.d(LOG, "searchFinished: " + searchOperation + ", searchResult=" + searchResult);
1180
1181         currentSearchOperation = null;
1182         uiHandler.postDelayed(new Runnable() {
1183             @Override
1184             public void run() {
1185                 if (currentSearchOperation == null) {
1186                     if (searchResult != null) {
1187                         if (isFiltered()) {
1188                             clearFiltered();
1189                         }
1190                         jumpToRow(searchResult.startRow);
1191                     } else if (searchOperation.multiWordSearchResult != null) {
1192                         // Multi-row search....
1193                         setFiltered(searchOperation);
1194                     } else {
1195                         throw new IllegalStateException("This should never happen.");
1196                     }
1197                 } else {
1198                     Log.d(LOG, "More coming, waiting for currentSearchOperation.");
1199                 }
1200             }
1201         }, 20);
1202     }
1203
1204     private final void jumpToRow(final int row) {
1205         Log.d(LOG, "jumpToRow: " + row + ", refocusSearchText=" + false);
1206         // getListView().requestFocusFromTouch();
1207         getListView().setSelectionFromTop(row, 0);
1208         getListView().setSelected(true);
1209     }
1210
1211     static final Pattern WHITESPACE = Pattern.compile("\\s+");
1212
1213     final class SearchOperation implements Runnable {
1214
1215         final AtomicBoolean interrupted = new AtomicBoolean(false);
1216
1217         final String searchText;
1218
1219         List<String> searchTokens; // filled in for multiWord.
1220
1221         final Index index;
1222
1223         long searchStartMillis;
1224
1225         Index.IndexEntry searchResult;
1226
1227         List<RowBase> multiWordSearchResult;
1228
1229         boolean done = false;
1230
1231         SearchOperation(final String searchText, final Index index) {
1232             this.searchText = StringUtil.normalizeWhitespace(searchText);
1233             this.index = index;
1234         }
1235
1236         public String toString() {
1237             return String.format("SearchOperation(%s,%s)", searchText, interrupted.toString());
1238         }
1239
1240         @Override
1241         public void run() {
1242             try {
1243                 searchStartMillis = System.currentTimeMillis();
1244                 final String[] searchTokenArray = WHITESPACE.split(searchText);
1245                 if (searchTokenArray.length == 1) {
1246                     searchResult = index.findInsertionPoint(searchText, interrupted);
1247                 } else {
1248                     searchTokens = Arrays.asList(searchTokenArray);
1249                     multiWordSearchResult = index.multiWordSearch(searchText, searchTokens,
1250                             interrupted);
1251                 }
1252                 Log.d(LOG,
1253                         "searchText=" + searchText + ", searchDuration="
1254                                 + (System.currentTimeMillis() - searchStartMillis)
1255                                 + ", interrupted=" + interrupted.get());
1256                 if (!interrupted.get()) {
1257                     uiHandler.post(new Runnable() {
1258                         @Override
1259                         public void run() {
1260                             searchFinished(SearchOperation.this);
1261                         }
1262                     });
1263                 } else {
1264                     Log.d(LOG, "interrupted, skipping searchFinished.");
1265                 }
1266             } catch (Exception e) {
1267                 Log.e(LOG, "Failure during search (can happen during Activity close.");
1268             } finally {
1269                 synchronized (this) {
1270                     done = true;
1271                     this.notifyAll();
1272                 }
1273             }
1274         }
1275     }
1276
1277     // --------------------------------------------------------------------------
1278     // IndexAdapter
1279     // --------------------------------------------------------------------------
1280
1281     static ViewGroup.LayoutParams WEIGHT_1 = new LinearLayout.LayoutParams(
1282             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 1.0f);
1283
1284     static ViewGroup.LayoutParams WEIGHT_0 = new LinearLayout.LayoutParams(
1285             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 0.0f);
1286
1287     final class IndexAdapter extends BaseAdapter {
1288
1289         private static final float PADDING_DEFAULT_DP = 8;
1290
1291         private static final float PADDING_LARGE_DP = 16;
1292
1293         final Index index;
1294
1295         final List<RowBase> rows;
1296
1297         final Set<String> toHighlight;
1298
1299         private int mPaddingDefault;
1300
1301         private int mPaddingLarge;
1302
1303         IndexAdapter(final Index index) {
1304             this.index = index;
1305             rows = index.rows;
1306             this.toHighlight = null;
1307             getMetrics();
1308         }
1309
1310         IndexAdapter(final Index index, final List<RowBase> rows, final List<String> toHighlight) {
1311             this.index = index;
1312             this.rows = rows;
1313             this.toHighlight = new LinkedHashSet<String>(toHighlight);
1314             getMetrics();
1315         }
1316
1317         private void getMetrics() {
1318             // Get the screen's density scale
1319             final float scale = getResources().getDisplayMetrics().density;
1320             // Convert the dps to pixels, based on density scale
1321             mPaddingDefault = (int) (PADDING_DEFAULT_DP * scale + 0.5f);
1322             mPaddingLarge = (int) (PADDING_LARGE_DP * scale + 0.5f);
1323         }
1324
1325         @Override
1326         public int getCount() {
1327             return rows.size();
1328         }
1329
1330         @Override
1331         public RowBase getItem(int position) {
1332             return rows.get(position);
1333         }
1334
1335         @Override
1336         public long getItemId(int position) {
1337             return getItem(position).index();
1338         }
1339
1340         @Override
1341         public TableLayout getView(int position, View convertView, ViewGroup parent) {
1342             final TableLayout result;
1343             if (convertView instanceof TableLayout) {
1344                 result = (TableLayout) convertView;
1345                 result.removeAllViews();
1346             } else {
1347                 result = new TableLayout(parent.getContext());
1348             }
1349             final RowBase row = getItem(position);
1350             if (row instanceof PairEntry.Row) {
1351                 return getView(position, (PairEntry.Row) row, parent, result);
1352             } else if (row instanceof TokenRow) {
1353                 return getView((TokenRow) row, parent, result);
1354             } else if (row instanceof HtmlEntry.Row) {
1355                 return getView((HtmlEntry.Row) row, parent, result);
1356             } else {
1357                 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
1358             }
1359         }
1360
1361         private TableLayout getView(final int position, PairEntry.Row row, ViewGroup parent,
1362                 final TableLayout result) {
1363             final PairEntry entry = row.getEntry();
1364             final int rowCount = entry.pairs.size();
1365
1366             final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams();
1367             layoutParams.weight = 0.5f;
1368             layoutParams.leftMargin = mPaddingLarge;
1369
1370             for (int r = 0; r < rowCount; ++r) {
1371                 final TableRow tableRow = new TableRow(result.getContext());
1372
1373                 final TextView col1 = new TextView(tableRow.getContext());
1374                 final TextView col2 = new TextView(tableRow.getContext());
1375
1376                 // Set the columns in the table.
1377                 if (r > 0) {
1378                     final TextView bullet = new TextView(tableRow.getContext());
1379                     bullet.setText(" • ");
1380                     tableRow.addView(bullet);
1381                 }
1382                 tableRow.addView(col1, layoutParams);
1383                 final TextView margin = new TextView(tableRow.getContext());
1384                 margin.setText(" ");
1385                 tableRow.addView(margin);
1386                 if (r > 0) {
1387                     final TextView bullet = new TextView(tableRow.getContext());
1388                     bullet.setText(" • ");
1389                     tableRow.addView(bullet);
1390                 }
1391                 tableRow.addView(col2, layoutParams);
1392                 col1.setWidth(1);
1393                 col2.setWidth(1);
1394
1395                 // Set what's in the columns.
1396
1397                 final Pair pair = entry.pairs.get(r);
1398                 final String col1Text = index.swapPairEntries ? pair.lang2 : pair.lang1;
1399                 final String col2Text = index.swapPairEntries ? pair.lang1 : pair.lang2;
1400
1401                 col1.setText(col1Text, TextView.BufferType.SPANNABLE);
1402                 col2.setText(col2Text, TextView.BufferType.SPANNABLE);
1403
1404                 // Bold the token instances in col1.
1405                 final Set<String> toBold = toHighlight != null ? this.toHighlight : Collections
1406                         .singleton(row.getTokenRow(true).getToken());
1407                 final Spannable col1Spannable = (Spannable) col1.getText();
1408                 for (final String token : toBold) {
1409                     int startPos = 0;
1410                     while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
1411                         col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos, startPos
1412                                 + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1413                         startPos += token.length();
1414                     }
1415                 }
1416
1417                 createTokenLinkSpans(col1, col1Spannable, col1Text);
1418                 createTokenLinkSpans(col2, (Spannable) col2.getText(), col2Text);
1419
1420                 col1.setTypeface(typeface);
1421                 col2.setTypeface(typeface);
1422                 col1.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1423                 col2.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1424                 // col2.setBackgroundResource(theme.otherLangBg);
1425
1426                 if (index.swapPairEntries) {
1427                     col2.setOnLongClickListener(textViewLongClickListenerIndex0);
1428                     col1.setOnLongClickListener(textViewLongClickListenerIndex1);
1429                 } else {
1430                     col1.setOnLongClickListener(textViewLongClickListenerIndex0);
1431                     col2.setOnLongClickListener(textViewLongClickListenerIndex1);
1432                 }
1433
1434                 result.addView(tableRow);
1435             }
1436
1437             // Because we have a Button inside a ListView row:
1438             // http://groups.google.com/group/android-developers/browse_thread/thread/3d96af1530a7d62a?pli=1
1439             result.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
1440             result.setClickable(true);
1441             result.setFocusable(true);
1442             result.setLongClickable(true);
1443 //            result.setBackgroundResource(android.R.drawable.menuitem_background);
1444
1445             result.setBackgroundResource(theme.normalRowBg);
1446
1447             result.setOnClickListener(new TextView.OnClickListener() {
1448                 @Override
1449                 public void onClick(View v) {
1450                     DictionaryActivity.this.onListItemClick(getListView(), v, position, position);
1451                 }
1452             });
1453
1454             return result;
1455         }
1456
1457         private TableLayout getPossibleLinkToHtmlEntryView(final boolean isTokenRow,
1458                 final String text, final boolean hasMainEntry, final List<HtmlEntry> htmlEntries,
1459                 final String htmlTextToHighlight, ViewGroup parent, final TableLayout result) {
1460             final Context context = parent.getContext();
1461
1462             final TableRow tableRow = new TableRow(result.getContext());
1463             tableRow.setBackgroundResource(hasMainEntry ? theme.tokenRowMainBg
1464                     : theme.tokenRowOtherBg);
1465             if (isTokenRow) {
1466                 tableRow.setPadding(mPaddingDefault, mPaddingDefault, mPaddingDefault, 0);
1467             } else {
1468                 tableRow.setPadding(mPaddingLarge, mPaddingDefault, mPaddingDefault, 0);
1469             }
1470             result.addView(tableRow);
1471
1472             // Make it so we can long-click on these token rows, too:
1473             final TextView textView = new TextView(context);
1474             textView.setText(text, BufferType.SPANNABLE);
1475             createTokenLinkSpans(textView, (Spannable) textView.getText(), text);
1476             final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1477                     0);
1478             textView.setOnLongClickListener(textViewLongClickListenerIndex0);
1479             result.setLongClickable(true);
1480
1481             // Doesn't work:
1482             // textView.setTextColor(android.R.color.secondary_text_light);
1483             textView.setTypeface(typeface);
1484             TableRow.LayoutParams lp = new TableRow.LayoutParams(0);
1485             if (isTokenRow) {
1486                 textView.setTextAppearance(context, theme.tokenRowFg);
1487                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 4 * fontSizeSp / 3);
1488             } else {
1489                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1490             }
1491             lp.weight = 1.0f;
1492
1493             textView.setLayoutParams(lp);
1494             tableRow.addView(textView);
1495
1496             if (!htmlEntries.isEmpty()) {
1497                 final ClickableSpan clickableSpan = new ClickableSpan() {
1498                     @Override
1499                     public void onClick(View widget) {
1500                     }
1501                 };
1502                 ((Spannable) textView.getText()).setSpan(clickableSpan, 0, text.length(),
1503                         Spannable.SPAN_INCLUSIVE_INCLUSIVE);
1504                 result.setClickable(true);
1505                 textView.setClickable(true);
1506                 textView.setMovementMethod(LinkMovementMethod.getInstance());
1507                 textView.setOnClickListener(new OnClickListener() {
1508                     @Override
1509                     public void onClick(View v) {
1510                         String html = HtmlEntry.htmlBody(htmlEntries, index.shortName);
1511                         // Log.d(LOG, "html=" + html);
1512                         startActivityForResult(
1513                                 HtmlDisplayActivity.getHtmlIntent(getApplicationContext(), String.format(
1514                                         "<html><head></head><body>%s</body></html>", html),
1515                                         htmlTextToHighlight, false),
1516                                 0);
1517                     }
1518                 });
1519             }
1520             return result;
1521         }
1522
1523         private TableLayout getView(TokenRow row, ViewGroup parent, final TableLayout result) {
1524             final IndexEntry indexEntry = row.getIndexEntry();
1525             return getPossibleLinkToHtmlEntryView(true, indexEntry.token, row.hasMainEntry,
1526                     indexEntry.htmlEntries, null, parent, result);
1527         }
1528
1529         private TableLayout getView(HtmlEntry.Row row, ViewGroup parent, final TableLayout result) {
1530             final HtmlEntry htmlEntry = row.getEntry();
1531             final TokenRow tokenRow = row.getTokenRow(true);
1532             return getPossibleLinkToHtmlEntryView(false,
1533                     getString(R.string.seeAlso, htmlEntry.title, htmlEntry.entrySource.getName()),
1534                     false, Collections.singletonList(htmlEntry), tokenRow.getToken(), parent,
1535                     result);
1536         }
1537
1538     }
1539
1540     static final Pattern CHAR_DASH = Pattern.compile("['\\p{L}\\p{M}\\p{N}]+");
1541
1542     private void createTokenLinkSpans(final TextView textView, final Spannable spannable,
1543             final String text) {
1544         // Saw from the source code that LinkMovementMethod sets the selection!
1545         // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.3.1_r1/android/text/method/LinkMovementMethod.java#LinkMovementMethod
1546         textView.setMovementMethod(LinkMovementMethod.getInstance());
1547         final Matcher matcher = CHAR_DASH.matcher(text);
1548         while (matcher.find()) {
1549             spannable.setSpan(new NonLinkClickableSpan(textColorFg), matcher.start(),
1550                     matcher.end(),
1551                     Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1552         }
1553     }
1554
1555     String selectedSpannableText = null;
1556
1557     int selectedSpannableIndex = -1;
1558
1559     @Override
1560     public boolean onTouchEvent(MotionEvent event) {
1561         selectedSpannableText = null;
1562         selectedSpannableIndex = -1;
1563         return super.onTouchEvent(event);
1564     }
1565
1566     private class TextViewLongClickListener implements OnLongClickListener {
1567         final int index;
1568
1569         private TextViewLongClickListener(final int index) {
1570             this.index = index;
1571         }
1572
1573         @Override
1574         public boolean onLongClick(final View v) {
1575             final TextView textView = (TextView) v;
1576             final int start = textView.getSelectionStart();
1577             final int end = textView.getSelectionEnd();
1578             if (start >= 0 && end >= 0) {
1579                 selectedSpannableText = textView.getText().subSequence(start, end).toString();
1580                 selectedSpannableIndex = index;
1581             }
1582             return false;
1583         }
1584     }
1585
1586     final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1587             0);
1588
1589     final TextViewLongClickListener textViewLongClickListenerIndex1 = new TextViewLongClickListener(
1590             1);
1591
1592     // --------------------------------------------------------------------------
1593     // SearchText
1594     // --------------------------------------------------------------------------
1595
1596     void onSearchTextChange(final String text) {
1597         if ("thadolina".equals(text)) {
1598             final Dialog dialog = new Dialog(getListView().getContext());
1599             dialog.setContentView(R.layout.thadolina_dialog);
1600             dialog.setTitle("Ti amo, amore mio!");
1601             final ImageView imageView = (ImageView) dialog.findViewById(R.id.thadolina_image);
1602             imageView.setOnClickListener(new OnClickListener() {
1603                 @Override
1604                 public void onClick(View v) {
1605                     final Intent intent = new Intent(Intent.ACTION_VIEW);
1606                     intent.setData(Uri.parse("https://sites.google.com/site/cfoxroxvday/vday2012"));
1607                     startActivity(intent);
1608                 }
1609             });
1610             dialog.show();
1611         }
1612         if (dictRaf == null) {
1613             Log.d(LOG, "searchText changed during shutdown, doing nothing.");
1614             return;
1615         }
1616
1617         // Hide search icon once text is entered
1618         searchView.setIconifiedByDefault(text.length() > 0);
1619         searchView.setIconified(false);
1620
1621         // if (!searchView.hasFocus()) {
1622         // Log.d(LOG, "searchText changed without focus, doing nothing.");
1623         // return;
1624         // }
1625         Log.d(LOG, "onSearchTextChange: " + text);
1626         if (currentSearchOperation != null) {
1627             Log.d(LOG, "Interrupting currentSearchOperation.");
1628             currentSearchOperation.interrupted.set(true);
1629         }
1630         currentSearchOperation = new SearchOperation(text, index);
1631         searchExecutor.execute(currentSearchOperation);
1632     }
1633
1634     // --------------------------------------------------------------------------
1635     // Filtered results.
1636     // --------------------------------------------------------------------------
1637
1638     boolean isFiltered() {
1639         return rowsToShow != null;
1640     }
1641
1642     void setFiltered(final SearchOperation searchOperation) {
1643         if (nextWordMenuItem != null) {
1644             nextWordMenuItem.setEnabled(false);
1645             previousWordMenuItem.setEnabled(false);
1646         }
1647         rowsToShow = searchOperation.multiWordSearchResult;
1648         setListAdapter(new IndexAdapter(index, rowsToShow, searchOperation.searchTokens));
1649     }
1650
1651     void clearFiltered() {
1652         if (nextWordMenuItem != null) {
1653             nextWordMenuItem.setEnabled(true);
1654             previousWordMenuItem.setEnabled(true);
1655         }
1656         setListAdapter(new IndexAdapter(index));
1657         rowsToShow = null;
1658     }
1659
1660 }