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