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             if ("FreeSerif.ttf.jpg".equals(fontName)) {
 412                 fontName = "FreeSerif.otf.jpg";
 413             }
 414             try {
 415                 typeface = Typeface.createFromAsset(getAssets(), fontName);
 416             } catch (Exception e) {
 417                 Log.w(LOG, "Exception trying to use typeface, using default.", e);
 418                 Toast.makeText(this, getString(R.string.fontFailure, e.getLocalizedMessage()),
 419                         Toast.LENGTH_LONG).show();
 420             }
 421         }
 422         if (typeface == null) {
 423             Log.w(LOG, "Unable to create typeface, using default.");
 424             typeface = Typeface.DEFAULT;
 425         }
 426         final String fontSize = prefs.getString(getString(R.string.fontSizeKey), "14");
 427         try {
 428             fontSizeSp = Integer.parseInt(fontSize.trim());
 429         } catch (NumberFormatException e) {
 430             fontSizeSp = 14;
 431         }
 432
 433         // ContextMenu.
 434         registerForContextMenu(getListView());
 435
 436         // Cache some prefs.
 437         wordList = application.getWordListFile();
 438         saveOnlyFirstSubentry = prefs.getBoolean(getString(R.string.saveOnlyFirstSubentryKey),
 439                 false);
 440         clickOpensContextMenu = prefs.getBoolean(getString(R.string.clickOpensContextMenuKey),
 441                 false);
 442         Log.d(LOG, "wordList=" + wordList + ", saveOnlyFirstSubentry=" + saveOnlyFirstSubentry);
 443
 444         onCreateSetupActionBarAndSearchView();
 445
 446         // Set the search text from the intent, then the saved state.
 447         String text = getIntent().getStringExtra(C.SEARCH_TOKEN);
 448         if (savedInstanceState != null) {
 449             text = savedInstanceState.getString(C.SEARCH_TOKEN);
 450         }
 451         if (text == null) {
 452             text = "";
 453         }
 454         setSearchText(text, true);
 455         Log.d(LOG, "Trying to restore searchText=" + text);
 456
 457         setDictionaryPrefs(this, dictFile, index.shortName, searchView.getQuery().toString());
 458
 459         updateLangButton();
 460         searchView.requestFocus();
 461
 462         // http://stackoverflow.com/questions/2833057/background-listview-becomes-black-when-scrolling
 463 //        getListView().setCacheColorHint(0);
 464     }
 465
 466     private void onCreateSetupActionBarAndSearchView() {
 467         ActionBar actionBar = getSupportActionBar();
 468         actionBar.setDisplayShowTitleEnabled(false);
 469         actionBar.setDisplayShowHomeEnabled(false);
 470         actionBar.setDisplayHomeAsUpEnabled(false);
 471
 472         final LinearLayout customSearchView = new LinearLayout(getSupportActionBar().getThemedContext());
 473
 474         final int width = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 300,
 475                 getResources().getDisplayMetrics());
 476         final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 477                 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 478         customSearchView.setLayoutParams(layoutParams);
 479
 480         listView.setOnItemClickListener(new OnItemClickListener() {
 481             @Override
 482             public void onItemClick(AdapterView<?> parent, View view, int row, long id) {
 483                 onListItemClick(getListView(), view, row, id);
 484             }
 485         });
 486
 487         languageButton = new ImageButton(customSearchView.getContext());
 488         languageButton.setMinimumWidth(application.languageButtonPixels);
 489         languageButton.setMinimumHeight(application.languageButtonPixels * 2 / 3);
 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         customSearchView.addView(languageButton);
 505
 506         searchView = new SearchView(getSupportActionBar().getThemedContext());
 507         searchView.setIconifiedByDefault(false);
 508         // searchView.setIconified(false); // puts the magnifying glass in the
 509         // wrong place.
 510         searchView.setQueryHint(getString(R.string.searchText));
 511         searchView.setSubmitButtonEnabled(false);
 512         searchView.setImeOptions(
 513                 EditorInfo.IME_ACTION_SEARCH |
 514                         EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 515                         EditorInfo.IME_FLAG_NO_ENTER_ACTION |
 516                         // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 517                         // 11
 518                         EditorInfo.IME_MASK_ACTION |
 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                 return true;
 525             }
 526
 527             @Override
 528             public boolean onQueryTextChange(String newText) {
 529                 Log.d(LOG, "OnQueryTextListener: onQueryTextChange: " + searchView.getQuery());
 530                 onSearchTextChange(searchView.getQuery().toString());
 531                 return true;
 532             }
 533         };
 534         searchView.setOnQueryTextListener(onQueryTextListener);
 535         searchView.setFocusable(true);
 536         LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(0,
 537                 FrameLayout.LayoutParams.WRAP_CONTENT, 1);
 538         customSearchView.addView(searchView, lp);
 539
 540         actionBar.setCustomView(customSearchView);
 541         actionBar.setDisplayShowCustomEnabled(true);
 542     }
 543
 544     @Override
 545     protected void onResume() {
 546         Log.d(LOG, "onResume");
 547         super.onResume();
 548         if (PreferenceActivity.prefsMightHaveChanged) {
 549             PreferenceActivity.prefsMightHaveChanged = false;
 550             finish();
 551             startActivity(getIntent());
 552         }
 553         showKeyboard();
 554     }
 555
 556     @Override
 557     protected void onPause() {
 558         super.onPause();
 559     }
 560
 561     @Override
 562     /**
 563      * Invoked when MyWebView returns, since the user might have clicked some
 564      * hypertext in the MyWebView.
 565      */
 566     protected void onActivityResult(int requestCode, int resultCode, Intent result) {
 567         super.onActivityResult(requestCode, resultCode, result);
 568         if (result != null && result.hasExtra(C.SEARCH_TOKEN)) {
 569             Log.d(LOG, "onActivityResult: " + result.getStringExtra(C.SEARCH_TOKEN));
 570             jumpToTextFromHyperLink(result.getStringExtra(C.SEARCH_TOKEN), indexIndex);
 571         }
 572     }
 573
 574     private static void setDictionaryPrefs(final Context context, final File dictFile,
 575             final String indexShortName, final String searchToken) {
 576         final SharedPreferences.Editor prefs = PreferenceManager.getDefaultSharedPreferences(
 577                 context).edit();
 578         prefs.putString(C.DICT_FILE, dictFile.getPath());
 579         prefs.putString(C.INDEX_SHORT_NAME, indexShortName);
 580         prefs.putString(C.SEARCH_TOKEN, ""); // Don't need to save search token.
 581         prefs.commit();
 582     }
 583
 584     @Override
 585     protected void onDestroy() {
 586         super.onDestroy();
 587         if (dictRaf == null) {
 588             return;
 589         }
 590
 591         final SearchOperation searchOperation = currentSearchOperation;
 592         currentSearchOperation = null;
 593
 594         // Before we close the RAF, we have to wind the current search down.
 595         if (searchOperation != null) {
 596             Log.d(LOG, "Interrupting search to shut down.");
 597             currentSearchOperation = null;
 598             searchOperation.interrupted.set(true);
 599         }
 600
 601         try {
 602             Log.d(LOG, "Closing RAF.");
 603             dictRaf.close();
 604         } catch (IOException e) {
 605             Log.e(LOG, "Failed to close dictionary", e);
 606         }
 607         dictRaf = null;
 608     }
 609
 610     // --------------------------------------------------------------------------
 611     // Buttons
 612     // --------------------------------------------------------------------------
 613
 614     private void showKeyboard() {
 615         // For some reason, this doesn't always work the first time.
 616         // One way to replicate the problem:
 617         // Press the "task switch" button repeatedly to pause and resume
 618         for (int delay = 1; delay <= 101; delay += 100) {
 619             searchView.postDelayed(new Runnable() {
 620                 @Override
 621                 public void run() {
 622                     Log.d(LOG, "Trying to show soft keyboard.");
 623                     final boolean searchTextHadFocus = searchView.hasFocus();
 624                     searchView.requestFocusFromTouch();
 625                     final InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 626                     manager.showSoftInput(searchView, InputMethodManager.SHOW_IMPLICIT);
 627                     if (!searchTextHadFocus) {
 628                         defocusSearchText();
 629                     }
 630                 }
 631             }, delay);
 632         }
 633     }
 634
 635     void updateLangButton() {
 636         final LanguageResources languageResources =
 637                 DictionaryApplication.isoCodeToResources.get(index.shortName);
 638         if (languageResources != null && languageResources.flagId != 0) {
 639             languageButton.setImageResource(languageResources.flagId);
 640         } else {
 641             if (indexIndex % 2 == 0) {
 642                 languageButton.setImageResource(android.R.drawable.ic_media_next);
 643             } else {
 644                 languageButton.setImageResource(android.R.drawable.ic_media_previous);
 645             }
 646         }
 647         updateTTSLanguage();
 648     }
 649
 650     private void updateTTSLanguage() {
 651         if (!ttsReady || index == null || textToSpeech == null) {
 652             Log.d(LOG, "Can't updateTTSLanguage.");
 653             return;
 654         }
 655         final Locale locale = new Locale(index.sortLanguage.getIsoCode());
 656         Log.d(LOG, "Setting TTS locale to: " + locale);
 657         final int ttsResult = textToSpeech.setLanguage(locale);
 658         if (ttsResult != TextToSpeech.LANG_AVAILABLE ||
 659                 ttsResult != TextToSpeech.LANG_COUNTRY_AVAILABLE) {
 660             Log.e(LOG, "TTS not available in this language: ttsResult=" + ttsResult);
 661         }
 662     }
 663
 664     void onLanguageButtonClick() {
 665         if (dictionary.indices.size() == 1) {
 666             // No need to work to switch indices.
 667             return;
 668         }
 669         if (currentSearchOperation != null) {
 670             currentSearchOperation.interrupted.set(true);
 671             currentSearchOperation = null;
 672         }
 673         setIndexAndSearchText((indexIndex + 1) % dictionary.indices.size(),
 674                 searchView.getQuery().toString());
 675     }
 676
 677     void onLanguageButtonLongClick(final Context context) {
 678         final Dialog dialog = new Dialog(context);
 679         dialog.setContentView(R.layout.select_dictionary_dialog);
 680         dialog.setTitle(R.string.selectDictionary);
 681
 682         final List<DictionaryInfo> installedDicts = application.getDictionariesOnDevice(null);
 683
 684         ListView listView = (ListView) dialog.findViewById(android.R.id.list);
 685         final Button button = new Button(listView.getContext());
 686         final String name = getString(R.string.dictionaryManager);
 687         button.setText(name);
 688         final IntentLauncher intentLauncher = new IntentLauncher(listView.getContext(),
 689                 DictionaryManagerActivity.getLaunchIntent(getApplicationContext())) {
 690             @Override
 691             protected void onGo() {
 692                 dialog.dismiss();
 693                 DictionaryActivity.this.finish();
 694             }
 695         };
 696         button.setOnClickListener(intentLauncher);
 697         listView.addHeaderView(button);
 698
 699         listView.setAdapter(new BaseAdapter() {
 700             @Override
 701             public View getView(int position, View convertView, ViewGroup parent) {
 702                 final DictionaryInfo dictionaryInfo = getItem(position);
 703
 704                 final LinearLayout result = new LinearLayout(parent.getContext());
 705
 706                 for (int i = 0; i < dictionaryInfo.indexInfos.size(); ++i) {
 707                     final IndexInfo indexInfo = dictionaryInfo.indexInfos.get(i);
 708                     final View button = application.createButton(parent.getContext(),
 709                             dictionaryInfo, indexInfo);
 710                     final IntentLauncher intentLauncher = new IntentLauncher(parent.getContext(),
 711                             getLaunchIntent(getApplicationContext(),
 712                                     application.getPath(dictionaryInfo.uncompressedFilename),
 713                                     indexInfo.shortName, searchView.getQuery().toString())) {
 714                         @Override
 715                         protected void onGo() {
 716                             dialog.dismiss();
 717                             DictionaryActivity.this.finish();
 718                         }
 719                     };
 720                     button.setOnClickListener(intentLauncher);
 721                     result.addView(button);
 722                 }
 723
 724                 final TextView nameView = new TextView(parent.getContext());
 725                 final String name = application
 726                         .getDictionaryName(dictionaryInfo.uncompressedFilename);
 727                 nameView.setText(name);
 728                 final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 729                         ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 730                 layoutParams.width = 0;
 731                 layoutParams.weight = 1.0f;
 732                 nameView.setLayoutParams(layoutParams);
 733                 nameView.setGravity(Gravity.CENTER_VERTICAL);
 734                 result.addView(nameView);
 735                 return result;
 736             }
 737
 738             @Override
 739             public long getItemId(int position) {
 740                 return position;
 741             }
 742
 743             @Override
 744             public DictionaryInfo getItem(int position) {
 745                 return installedDicts.get(position);
 746             }
 747
 748             @Override
 749             public int getCount() {
 750                 return installedDicts.size();
 751             }
 752         });
 753         dialog.show();
 754     }
 755
 756     void onUpDownButton(final boolean up) {
 757         if (isFiltered()) {
 758             return;
 759         }
 760         final int firstVisibleRow = getListView().getFirstVisiblePosition();
 761         final RowBase row = index.rows.get(firstVisibleRow);
 762         final TokenRow tokenRow = row.getTokenRow(true);
 763         final int destIndexEntry;
 764         if (up) {
 765             if (row != tokenRow) {
 766                 destIndexEntry = tokenRow.referenceIndex;
 767             } else {
 768                 destIndexEntry = Math.max(tokenRow.referenceIndex - 1, 0);
 769             }
 770         } else {
 771             // Down
 772             destIndexEntry = Math.min(tokenRow.referenceIndex + 1, index.sortedIndexEntries.size());
 773         }
 774         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 775         Log.d(LOG, "onUpDownButton, destIndexEntry=" + dest.token);
 776         setSearchText(dest.token, false);
 777         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 778         defocusSearchText();
 779     }
 780
 781     // --------------------------------------------------------------------------
 782     // Options Menu
 783     // --------------------------------------------------------------------------
 784
 785     final Random random = new Random();
 786
 787     @Override
 788     public boolean onCreateOptionsMenu(final Menu menu) {
 789
 790         if (PreferenceManager.getDefaultSharedPreferences(this)
 791                 .getBoolean(getString(R.string.showPrevNextButtonsKey), true)) {
 792             // Next word.
 793             nextWordMenuItem = menu.add(getString(R.string.nextWord))
 794                     .setIcon(R.drawable.arrow_down_float);
 795             MenuItemCompat.setShowAsAction(nextWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
 796             nextWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 797                 @Override
 798                 public boolean onMenuItemClick(MenuItem item) {
 799                     onUpDownButton(false);
 800                     return true;
 801                 }
 802             });
 803
 804             // Previous word.
 805             previousWordMenuItem = menu.add(getString(R.string.previousWord))
 806                     .setIcon(R.drawable.arrow_up_float);
 807             MenuItemCompat.setShowAsAction(previousWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
 808             previousWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 809                 @Override
 810                 public boolean onMenuItemClick(MenuItem item) {
 811                     onUpDownButton(true);
 812                     return true;
 813                 }
 814             });
 815         }
 816
 817         application.onCreateGlobalOptionsMenu(this, menu);
 818
 819         {
 820             final MenuItem dictionaryManager = menu.add(getString(R.string.dictionaryManager));
 821             MenuItemCompat.setShowAsAction(dictionaryManager, MenuItem.SHOW_AS_ACTION_NEVER);
 822             dictionaryManager.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 823                 public boolean onMenuItemClick(final MenuItem menuItem) {
 824                     startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 825                     finish();
 826                     return false;
 827                 }
 828             });
 829         }
 830
 831         {
 832             final MenuItem aboutDictionary = menu.add(getString(R.string.aboutDictionary));
 833             MenuItemCompat.setShowAsAction(aboutDictionary, MenuItem.SHOW_AS_ACTION_NEVER);
 834             aboutDictionary.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 835                 public boolean onMenuItemClick(final MenuItem menuItem) {
 836                     final Context context = getListView().getContext();
 837                     final Dialog dialog = new Dialog(context);
 838                     dialog.setContentView(R.layout.about_dictionary_dialog);
 839                     final TextView textView = (TextView) dialog.findViewById(R.id.text);
 840
 841                     final String name = application.getDictionaryName(dictFile.getName());
 842                     dialog.setTitle(name);
 843
 844                     final StringBuilder builder = new StringBuilder();
 845                     final DictionaryInfo dictionaryInfo = dictionary.getDictionaryInfo();
 846                     dictionaryInfo.uncompressedBytes = dictFile.length();
 847                     if (dictionaryInfo != null) {
 848                         builder.append(dictionaryInfo.dictInfo).append("\n\n");
 849                         builder.append(getString(R.string.dictionaryPath, dictFile.getPath()))
 850                                 .append("\n");
 851                         builder.append(
 852                                 getString(R.string.dictionarySize, dictionaryInfo.uncompressedBytes))
 853                                 .append("\n");
 854                         builder.append(
 855                                 getString(R.string.dictionaryCreationTime,
 856                                         dictionaryInfo.creationMillis)).append("\n");
 857                         for (final IndexInfo indexInfo : dictionaryInfo.indexInfos) {
 858                             builder.append("\n");
 859                             builder.append(getString(R.string.indexName, indexInfo.shortName))
 860                                     .append("\n");
 861                             builder.append(
 862                                     getString(R.string.mainTokenCount, indexInfo.mainTokenCount))
 863                                     .append("\n");
 864                         }
 865                         builder.append("\n");
 866                         builder.append(getString(R.string.sources)).append("\n");
 867                         for (final EntrySource source : dictionary.sources) {
 868                             builder.append(
 869                                     getString(R.string.sourceInfo, source.getName(),
 870                                             source.getNumEntries())).append("\n");
 871                         }
 872                     }
 873                     textView.setText(builder.toString());
 874
 875                     dialog.show();
 876                     final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
 877                     layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
 878                     layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
 879                     dialog.getWindow().setAttributes(layoutParams);
 880                     return false;
 881                 }
 882             });
 883         }
 884
 885         return true;
 886     }
 887
 888     // --------------------------------------------------------------------------
 889     // Context Menu + clicks
 890     // --------------------------------------------------------------------------
 891
 892     @Override
 893     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
 894         AdapterContextMenuInfo adapterContextMenuInfo = (AdapterContextMenuInfo) menuInfo;
 895         final RowBase row = (RowBase) getListAdapter().getItem(adapterContextMenuInfo.position);
 896
 897         final android.view.MenuItem addToWordlist = menu.add(getString(R.string.addToWordList,
 898                 wordList.getName()));
 899         addToWordlist
 900                 .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 901                     public boolean onMenuItemClick(android.view.MenuItem item) {
 902                         onAppendToWordList(row);
 903                         return false;
 904                     }
 905                 });
 906
 907         final android.view.MenuItem share = menu.add("Share");
 908         share.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 909             public boolean onMenuItemClick(android.view.MenuItem item) {
 910                 Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
 911                 shareIntent.setType("text/plain");
 912                 shareIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, row.getTokenRow(true)
 913                         .getToken());
 914                 shareIntent.putExtra(android.content.Intent.EXTRA_TEXT,
 915                         row.getRawText(saveOnlyFirstSubentry));
 916                 startActivity(shareIntent);
 917                 return false;
 918             }
 919         });
 920
 921         final android.view.MenuItem copy = menu.add(android.R.string.copy);
 922         copy.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 923             public boolean onMenuItemClick(android.view.MenuItem item) {
 924                 onCopy(row);
 925                 return false;
 926             }
 927         });
 928
 929         if (selectedSpannableText != null) {
 930             final String selectedText = selectedSpannableText;
 931             final android.view.MenuItem searchForSelection = menu.add(getString(
 932                     R.string.searchForSelection,
 933                     selectedSpannableText));
 934             searchForSelection
 935                     .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 936                         public boolean onMenuItemClick(android.view.MenuItem item) {
 937                             jumpToTextFromHyperLink(selectedText, selectedSpannableIndex);
 938                             return false;
 939                         }
 940                     });
 941             // Rats, this won't be shown:
 942             //searchForSelection.setIcon(R.drawable.abs__ic_search);
 943         }
 944
 945         if (row instanceof TokenRow && ttsReady) {
 946             final android.view.MenuItem speak = menu.add(R.string.speak);
 947             speak.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 948                 @Override
 949                 public boolean onMenuItemClick(android.view.MenuItem item) {
 950                     textToSpeech.speak(((TokenRow) row).getToken(), TextToSpeech.QUEUE_FLUSH,
 951                             new HashMap<String, String>());
 952                     return false;
 953                 }
 954             });
 955         }
 956     }
 957
 958     private void jumpToTextFromHyperLink(
 959             final String selectedText, final int defaultIndexToUse) {
 960         int indexToUse = -1;
 961         for (int i = 0; i < dictionary.indices.size(); ++i) {
 962             final Index index = dictionary.indices.get(i);
 963             if (indexPrepFinished) {
 964                 System.out.println("Doing index lookup: on " + selectedText);
 965                 final IndexEntry indexEntry = index.findExact(selectedText);
 966                 if (indexEntry != null) {
 967                     final TokenRow tokenRow = index.rows.get(indexEntry.startRow)
 968                             .getTokenRow(false);
 969                     if (tokenRow != null && tokenRow.hasMainEntry) {
 970                         indexToUse = i;
 971                         break;
 972                     }
 973                 }
 974             } else {
 975                 Log.w(LOG, "Skipping findExact on index " + index.shortName);
 976             }
 977         }
 978         if (indexToUse == -1) {
 979             indexToUse = defaultIndexToUse;
 980         }
 981         // Without this extra delay, the call to jumpToRow that this
 982         // invokes doesn't always actually have any effect.
 983         final int actualIndexToUse = indexToUse;
 984         getListView().postDelayed(new Runnable() {
 985             @Override
 986             public void run() {
 987                 setIndexAndSearchText(actualIndexToUse, selectedText);
 988             }
 989         }, 100);
 990     }
 991
 992     /**
 993      * Called when user clicks outside of search text, so that they can start
 994      * typing again immediately.
 995      */
 996     void defocusSearchText() {
 997         // Log.d(LOG, "defocusSearchText");
 998         // Request focus so that if we start typing again, it clears the text
 999         // input.
1000         getListView().requestFocus();
1001
1002         // Visual indication that a new keystroke will clear the search text.
1003         // Doesn't seem to work unless earchText has focus.
1004         // searchView.selectAll();
1005     }
1006
1007     protected void onListItemClick(ListView l, View v, int row, long id) {
1008         defocusSearchText();
1009         if (clickOpensContextMenu && dictRaf != null) {
1010             openContextMenu(v);
1011         }
1012     }
1013
1014     @SuppressLint("SimpleDateFormat")
1015     void onAppendToWordList(final RowBase row) {
1016         defocusSearchText();
1017
1018         final StringBuilder rawText = new StringBuilder();
1019         rawText.append(new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(new Date())).append("\t");
1020         rawText.append(index.longName).append("\t");
1021         rawText.append(row.getTokenRow(true).getToken()).append("\t");
1022         rawText.append(row.getRawText(saveOnlyFirstSubentry));
1023         Log.d(LOG, "Writing : " + rawText);
1024
1025         try {
1026             wordList.getParentFile().mkdirs();
1027             final PrintWriter out = new PrintWriter(new FileWriter(wordList, true));
1028             out.println(rawText.toString());
1029             out.close();
1030         } catch (Exception e) {
1031             Log.e(LOG, "Unable to append to " + wordList.getAbsolutePath(), e);
1032             Toast.makeText(this,
1033                     getString(R.string.failedAddingToWordList, wordList.getAbsolutePath()),
1034                     Toast.LENGTH_LONG).show();
1035         }
1036         return;
1037     }
1038
1039     @SuppressWarnings("deprecation")
1040     void onCopy(final RowBase row) {
1041         defocusSearchText();
1042
1043         Log.d(LOG, "Copy, row=" + row);
1044         final StringBuilder result = new StringBuilder();
1045         result.append(row.getRawText(false));
1046         final ClipboardManager clipboardManager = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
1047         clipboardManager.setText(result.toString());
1048         Log.d(LOG, "Copied: " + result);
1049     }
1050
1051     @Override
1052     public boolean onKeyDown(final int keyCode, final KeyEvent event) {
1053         if (event.getUnicodeChar() != 0) {
1054             if (!searchView.hasFocus()) {
1055                 setSearchText("" + (char) event.getUnicodeChar(), true);
1056                 searchView.requestFocus();
1057             }
1058             return true;
1059         }
1060         if (keyCode == KeyEvent.KEYCODE_BACK) {
1061             // Log.d(LOG, "Clearing dictionary prefs.");
1062             // Pretend that we just autolaunched so that we won't do it again.
1063             // DictionaryManagerActivity.lastAutoLaunchMillis =
1064             // System.currentTimeMillis();
1065         }
1066         if (keyCode == KeyEvent.KEYCODE_ENTER) {
1067             Log.d(LOG, "Trying to hide soft keyboard.");
1068             final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
1069             inputManager.hideSoftInputFromWindow(this.getCurrentFocus().getWindowToken(),
1070                     InputMethodManager.HIDE_NOT_ALWAYS);
1071             return true;
1072         }
1073         return super.onKeyDown(keyCode, event);
1074     }
1075
1076     private void setIndexAndSearchText(int newIndex, String newSearchText) {
1077         Log.d(LOG, "Changing index to: " + newIndex);
1078         if (newIndex == -1) {
1079             Log.e(LOG, "Invalid index.");
1080             newIndex = 0;
1081         }
1082         if (newIndex != indexIndex) {
1083             indexIndex = newIndex;
1084             index = dictionary.indices.get(indexIndex);
1085             indexAdapter = new IndexAdapter(index);
1086             setListAdapter(indexAdapter);
1087             Log.d(LOG, "changingIndex, newLang=" + index.longName);
1088             setDictionaryPrefs(this, dictFile, index.shortName, searchView.getQuery().toString());
1089             updateLangButton();
1090         }
1091         setSearchText(newSearchText, true);
1092     }
1093
1094     private void setSearchText(final String text, final boolean triggerSearch) {
1095         Log.d(LOG, "setSearchText, text=" + text + ", triggerSearch=" + triggerSearch);
1096         // Disable the listener, because sometimes it doesn't work.
1097         searchView.setOnQueryTextListener(null);
1098         searchView.setQuery(text, false);
1099         moveCursorToRight();
1100         searchView.setOnQueryTextListener(onQueryTextListener);
1101
1102         // Hide search icon once text is entered
1103         searchView.setIconifiedByDefault(text.length() > 0);
1104         searchView.setIconified(false);
1105
1106         if (triggerSearch) {
1107             onQueryTextListener.onQueryTextChange(text);
1108         }
1109     }
1110
1111     // private long cursorDelayMillis = 100;
1112     private void moveCursorToRight() {
1113         // if (searchText.getLayout() != null) {
1114         // cursorDelayMillis = 100;
1115         // // Surprising, but this can crash when you rotate...
1116         // Selection.moveToRightEdge(searchView.getQuery(),
1117         // searchText.getLayout());
1118         // } else {
1119         // uiHandler.postDelayed(new Runnable() {
1120         // @Override
1121         // public void run() {
1122         // moveCursorToRight();
1123         // }
1124         // }, cursorDelayMillis);
1125         // cursorDelayMillis = Math.min(10 * 1000, 2 * cursorDelayMillis);
1126         // }
1127     }
1128
1129     // --------------------------------------------------------------------------
1130     // SearchOperation
1131     // --------------------------------------------------------------------------
1132
1133     private void searchFinished(final SearchOperation searchOperation) {
1134         if (searchOperation.interrupted.get()) {
1135             Log.d(LOG, "Search operation was interrupted: " + searchOperation);
1136             return;
1137         }
1138         if (searchOperation != this.currentSearchOperation) {
1139             Log.d(LOG, "Stale searchOperation finished: " + searchOperation);
1140             return;
1141         }
1142
1143         final Index.IndexEntry searchResult = searchOperation.searchResult;
1144         Log.d(LOG, "searchFinished: " + searchOperation + ", searchResult=" + searchResult);
1145
1146         currentSearchOperation = null;
1147         uiHandler.postDelayed(new Runnable() {
1148             @Override
1149             public void run() {
1150                 if (currentSearchOperation == null) {
1151                     if (searchResult != null) {
1152                         if (isFiltered()) {
1153                             clearFiltered();
1154                         }
1155                         jumpToRow(searchResult.startRow);
1156                     } else if (searchOperation.multiWordSearchResult != null) {
1157                         // Multi-row search....
1158                         setFiltered(searchOperation);
1159                     } else {
1160                         throw new IllegalStateException("This should never happen.");
1161                     }
1162                 } else {
1163                     Log.d(LOG, "More coming, waiting for currentSearchOperation.");
1164                 }
1165             }
1166         }, 20);
1167     }
1168
1169     private final void jumpToRow(final int row) {
1170         Log.d(LOG, "jumpToRow: " + row + ", refocusSearchText=" + false);
1171         // getListView().requestFocusFromTouch();
1172         getListView().setSelectionFromTop(row, 0);
1173         getListView().setSelected(true);
1174     }
1175
1176     static final Pattern WHITESPACE = Pattern.compile("\\s+");
1177
1178     final class SearchOperation implements Runnable {
1179
1180         final AtomicBoolean interrupted = new AtomicBoolean(false);
1181
1182         final String searchText;
1183
1184         List<String> searchTokens; // filled in for multiWord.
1185
1186         final Index index;
1187
1188         long searchStartMillis;
1189
1190         Index.IndexEntry searchResult;
1191
1192         List<RowBase> multiWordSearchResult;
1193
1194         boolean done = false;
1195
1196         SearchOperation(final String searchText, final Index index) {
1197             this.searchText = StringUtil.normalizeWhitespace(searchText);
1198             this.index = index;
1199         }
1200
1201         public String toString() {
1202             return String.format("SearchOperation(%s,%s)", searchText, interrupted.toString());
1203         }
1204
1205         @Override
1206         public void run() {
1207             try {
1208                 searchStartMillis = System.currentTimeMillis();
1209                 final String[] searchTokenArray = WHITESPACE.split(searchText);
1210                 if (searchTokenArray.length == 1) {
1211                     searchResult = index.findInsertionPoint(searchText, interrupted);
1212                 } else {
1213                     searchTokens = Arrays.asList(searchTokenArray);
1214                     multiWordSearchResult = index.multiWordSearch(searchText, searchTokens,
1215                             interrupted);
1216                 }
1217                 Log.d(LOG,
1218                         "searchText=" + searchText + ", searchDuration="
1219                                 + (System.currentTimeMillis() - searchStartMillis)
1220                                 + ", interrupted=" + interrupted.get());
1221                 if (!interrupted.get()) {
1222                     uiHandler.post(new Runnable() {
1223                         @Override
1224                         public void run() {
1225                             searchFinished(SearchOperation.this);
1226                         }
1227                     });
1228                 } else {
1229                     Log.d(LOG, "interrupted, skipping searchFinished.");
1230                 }
1231             } catch (Exception e) {
1232                 Log.e(LOG, "Failure during search (can happen during Activity close.");
1233             } finally {
1234                 synchronized (this) {
1235                     done = true;
1236                     this.notifyAll();
1237                 }
1238             }
1239         }
1240     }
1241
1242     // --------------------------------------------------------------------------
1243     // IndexAdapter
1244     // --------------------------------------------------------------------------
1245
1246     static ViewGroup.LayoutParams WEIGHT_1 = new LinearLayout.LayoutParams(
1247             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 1.0f);
1248
1249     static ViewGroup.LayoutParams WEIGHT_0 = new LinearLayout.LayoutParams(
1250             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 0.0f);
1251
1252     final class IndexAdapter extends BaseAdapter {
1253
1254         private static final float PADDING_DEFAULT_DP = 8;
1255
1256         private static final float PADDING_LARGE_DP = 16;
1257
1258         final Index index;
1259
1260         final List<RowBase> rows;
1261
1262         final Set<String> toHighlight;
1263
1264         private int mPaddingDefault;
1265
1266         private int mPaddingLarge;
1267
1268         IndexAdapter(final Index index) {
1269             this.index = index;
1270             rows = index.rows;
1271             this.toHighlight = null;
1272             getMetrics();
1273         }
1274
1275         IndexAdapter(final Index index, final List<RowBase> rows, final List<String> toHighlight) {
1276             this.index = index;
1277             this.rows = rows;
1278             this.toHighlight = new LinkedHashSet<String>(toHighlight);
1279             getMetrics();
1280         }
1281
1282         private void getMetrics() {
1283             // Get the screen's density scale
1284             final float scale = getResources().getDisplayMetrics().density;
1285             // Convert the dps to pixels, based on density scale
1286             mPaddingDefault = (int) (PADDING_DEFAULT_DP * scale + 0.5f);
1287             mPaddingLarge = (int) (PADDING_LARGE_DP * scale + 0.5f);
1288         }
1289
1290         @Override
1291         public int getCount() {
1292             return rows.size();
1293         }
1294
1295         @Override
1296         public RowBase getItem(int position) {
1297             return rows.get(position);
1298         }
1299
1300         @Override
1301         public long getItemId(int position) {
1302             return getItem(position).index();
1303         }
1304
1305         @Override
1306         public TableLayout getView(int position, View convertView, ViewGroup parent) {
1307             final TableLayout result;
1308             if (convertView instanceof TableLayout) {
1309                 result = (TableLayout) convertView;
1310                 result.removeAllViews();
1311             } else {
1312                 result = new TableLayout(parent.getContext());
1313             }
1314             final RowBase row = getItem(position);
1315             if (row instanceof PairEntry.Row) {
1316                 return getView(position, (PairEntry.Row) row, parent, result);
1317             } else if (row instanceof TokenRow) {
1318                 return getView((TokenRow) row, parent, result);
1319             } else if (row instanceof HtmlEntry.Row) {
1320                 return getView((HtmlEntry.Row) row, parent, result);
1321             } else {
1322                 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
1323             }
1324         }
1325
1326         private TableLayout getView(final int position, PairEntry.Row row, ViewGroup parent,
1327                 final TableLayout result) {
1328             final PairEntry entry = row.getEntry();
1329             final int rowCount = entry.pairs.size();
1330
1331             final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams();
1332             layoutParams.weight = 0.5f;
1333             layoutParams.leftMargin = mPaddingLarge;
1334
1335             for (int r = 0; r < rowCount; ++r) {
1336                 final TableRow tableRow = new TableRow(result.getContext());
1337
1338                 final TextView col1 = new TextView(tableRow.getContext());
1339                 final TextView col2 = new TextView(tableRow.getContext());
1340
1341                 // Set the columns in the table.
1342                 if (r > 0) {
1343                     final TextView bullet = new TextView(tableRow.getContext());
1344                     bullet.setText(" • ");
1345                     tableRow.addView(bullet);
1346                 }
1347                 tableRow.addView(col1, layoutParams);
1348                 final TextView margin = new TextView(tableRow.getContext());
1349                 margin.setText(" ");
1350                 tableRow.addView(margin);
1351                 if (r > 0) {
1352                     final TextView bullet = new TextView(tableRow.getContext());
1353                     bullet.setText(" • ");
1354                     tableRow.addView(bullet);
1355                 }
1356                 tableRow.addView(col2, layoutParams);
1357                 col1.setWidth(1);
1358                 col2.setWidth(1);
1359
1360                 // Set what's in the columns.
1361
1362                 final Pair pair = entry.pairs.get(r);
1363                 final String col1Text = index.swapPairEntries ? pair.lang2 : pair.lang1;
1364                 final String col2Text = index.swapPairEntries ? pair.lang1 : pair.lang2;
1365
1366                 col1.setText(col1Text, TextView.BufferType.SPANNABLE);
1367                 col2.setText(col2Text, TextView.BufferType.SPANNABLE);
1368
1369                 // Bold the token instances in col1.
1370                 final Set<String> toBold = toHighlight != null ? this.toHighlight : Collections
1371                         .singleton(row.getTokenRow(true).getToken());
1372                 final Spannable col1Spannable = (Spannable) col1.getText();
1373                 for (final String token : toBold) {
1374                     int startPos = 0;
1375                     while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
1376                         col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos, startPos
1377                                 + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1378                         startPos += token.length();
1379                     }
1380                 }
1381
1382                 createTokenLinkSpans(col1, col1Spannable, col1Text);
1383                 createTokenLinkSpans(col2, (Spannable) col2.getText(), col2Text);
1384
1385                 col1.setTypeface(typeface);
1386                 col2.setTypeface(typeface);
1387                 col1.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1388                 col2.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1389                 // col2.setBackgroundResource(theme.otherLangBg);
1390
1391                 if (index.swapPairEntries) {
1392                     col2.setOnLongClickListener(textViewLongClickListenerIndex0);
1393                     col1.setOnLongClickListener(textViewLongClickListenerIndex1);
1394                 } else {
1395                     col1.setOnLongClickListener(textViewLongClickListenerIndex0);
1396                     col2.setOnLongClickListener(textViewLongClickListenerIndex1);
1397                 }
1398
1399                 result.addView(tableRow);
1400             }
1401
1402             // Because we have a Button inside a ListView row:
1403             // http://groups.google.com/group/android-developers/browse_thread/thread/3d96af1530a7d62a?pli=1
1404             result.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
1405             result.setClickable(true);
1406             result.setFocusable(true);
1407             result.setLongClickable(true);
1408 //            result.setBackgroundResource(android.R.drawable.menuitem_background);
1409
1410             result.setBackgroundResource(theme.normalRowBg);
1411
1412             result.setOnClickListener(new TextView.OnClickListener() {
1413                 @Override
1414                 public void onClick(View v) {
1415                     DictionaryActivity.this.onListItemClick(getListView(), v, position, position);
1416                 }
1417             });
1418
1419             return result;
1420         }
1421
1422         private TableLayout getPossibleLinkToHtmlEntryView(final boolean isTokenRow,
1423                 final String text, final boolean hasMainEntry, final List<HtmlEntry> htmlEntries,
1424                 final String htmlTextToHighlight, ViewGroup parent, final TableLayout result) {
1425             final Context context = parent.getContext();
1426
1427             final TableRow tableRow = new TableRow(result.getContext());
1428             tableRow.setBackgroundResource(hasMainEntry ? theme.tokenRowMainBg
1429                     : theme.tokenRowOtherBg);
1430             if (isTokenRow) {
1431                 tableRow.setPadding(mPaddingDefault, mPaddingDefault, mPaddingDefault, 0);
1432             } else {
1433                 tableRow.setPadding(mPaddingLarge, mPaddingDefault, mPaddingDefault, 0);
1434             }
1435             result.addView(tableRow);
1436
1437             // Make it so we can long-click on these token rows, too:
1438             final TextView textView = new TextView(context);
1439             textView.setText(text, BufferType.SPANNABLE);
1440             createTokenLinkSpans(textView, (Spannable) textView.getText(), text);
1441             final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1442                     0);
1443             textView.setOnLongClickListener(textViewLongClickListenerIndex0);
1444             result.setLongClickable(true);
1445
1446             // Doesn't work:
1447             // textView.setTextColor(android.R.color.secondary_text_light);
1448             textView.setTypeface(typeface);
1449             TableRow.LayoutParams lp = new TableRow.LayoutParams(0);
1450             if (isTokenRow) {
1451                 textView.setTextAppearance(context, theme.tokenRowFg);
1452                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 4 * fontSizeSp / 3);
1453             } else {
1454                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1455             }
1456             lp.weight = 1.0f;
1457
1458             textView.setLayoutParams(lp);
1459             tableRow.addView(textView);
1460
1461             if (!htmlEntries.isEmpty()) {
1462                 final ClickableSpan clickableSpan = new ClickableSpan() {
1463                     @Override
1464                     public void onClick(View widget) {
1465                     }
1466                 };
1467                 ((Spannable) textView.getText()).setSpan(clickableSpan, 0, text.length(),
1468                         Spannable.SPAN_INCLUSIVE_INCLUSIVE);
1469                 result.setClickable(true);
1470                 textView.setClickable(true);
1471                 textView.setMovementMethod(LinkMovementMethod.getInstance());
1472                 textView.setOnClickListener(new OnClickListener() {
1473                     @Override
1474                     public void onClick(View v) {
1475                         String html = HtmlEntry.htmlBody(htmlEntries, index.shortName);
1476                         // Log.d(LOG, "html=" + html);
1477                         startActivityForResult(
1478                                 HtmlDisplayActivity.getHtmlIntent(getApplicationContext(), String.format(
1479                                         "<html><head></head><body>%s</body></html>", html),
1480                                         htmlTextToHighlight, false),
1481                                 0);
1482                     }
1483                 });
1484             }
1485             return result;
1486         }
1487
1488         private TableLayout getView(TokenRow row, ViewGroup parent, final TableLayout result) {
1489             final IndexEntry indexEntry = row.getIndexEntry();
1490             return getPossibleLinkToHtmlEntryView(true, indexEntry.token, row.hasMainEntry,
1491                     indexEntry.htmlEntries, null, parent, result);
1492         }
1493
1494         private TableLayout getView(HtmlEntry.Row row, ViewGroup parent, final TableLayout result) {
1495             final HtmlEntry htmlEntry = row.getEntry();
1496             final TokenRow tokenRow = row.getTokenRow(true);
1497             return getPossibleLinkToHtmlEntryView(false,
1498                     getString(R.string.seeAlso, htmlEntry.title, htmlEntry.entrySource.getName()),
1499                     false, Collections.singletonList(htmlEntry), tokenRow.getToken(), parent,
1500                     result);
1501         }
1502
1503     }
1504
1505     static final Pattern CHAR_DASH = Pattern.compile("['\\p{L}\\p{M}\\p{N}]+");
1506
1507     private void createTokenLinkSpans(final TextView textView, final Spannable spannable,
1508             final String text) {
1509         // Saw from the source code that LinkMovementMethod sets the selection!
1510         // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.3.1_r1/android/text/method/LinkMovementMethod.java#LinkMovementMethod
1511         textView.setMovementMethod(LinkMovementMethod.getInstance());
1512         final Matcher matcher = CHAR_DASH.matcher(text);
1513         while (matcher.find()) {
1514             spannable.setSpan(new NonLinkClickableSpan(textColorFg), matcher.start(),
1515                     matcher.end(),
1516                     Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1517         }
1518     }
1519
1520     String selectedSpannableText = null;
1521
1522     int selectedSpannableIndex = -1;
1523
1524     @Override
1525     public boolean onTouchEvent(MotionEvent event) {
1526         selectedSpannableText = null;
1527         selectedSpannableIndex = -1;
1528         return super.onTouchEvent(event);
1529     }
1530
1531     private class TextViewLongClickListener implements OnLongClickListener {
1532         final int index;
1533
1534         private TextViewLongClickListener(final int index) {
1535             this.index = index;
1536         }
1537
1538         @Override
1539         public boolean onLongClick(final View v) {
1540             final TextView textView = (TextView) v;
1541             final int start = textView.getSelectionStart();
1542             final int end = textView.getSelectionEnd();
1543             if (start >= 0 && end >= 0) {
1544                 selectedSpannableText = textView.getText().subSequence(start, end).toString();
1545                 selectedSpannableIndex = index;
1546             }
1547             return false;
1548         }
1549     }
1550
1551     final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1552             0);
1553
1554     final TextViewLongClickListener textViewLongClickListenerIndex1 = new TextViewLongClickListener(
1555             1);
1556
1557     // --------------------------------------------------------------------------
1558     // SearchText
1559     // --------------------------------------------------------------------------
1560
1561     void onSearchTextChange(final String text) {
1562         if ("thadolina".equals(text)) {
1563             final Dialog dialog = new Dialog(getListView().getContext());
1564             dialog.setContentView(R.layout.thadolina_dialog);
1565             dialog.setTitle("Ti amo, amore mio!");
1566             final ImageView imageView = (ImageView) dialog.findViewById(R.id.thadolina_image);
1567             imageView.setOnClickListener(new OnClickListener() {
1568                 @Override
1569                 public void onClick(View v) {
1570                     final Intent intent = new Intent(Intent.ACTION_VIEW);
1571                     intent.setData(Uri.parse("https://sites.google.com/site/cfoxroxvday/vday2012"));
1572                     startActivity(intent);
1573                 }
1574             });
1575             dialog.show();
1576         }
1577         if (dictRaf == null) {
1578             Log.d(LOG, "searchText changed during shutdown, doing nothing.");
1579             return;
1580         }
1581
1582         // Hide search icon once text is entered
1583         searchView.setIconifiedByDefault(text.length() > 0);
1584         searchView.setIconified(false);
1585
1586         // if (!searchView.hasFocus()) {
1587         // Log.d(LOG, "searchText changed without focus, doing nothing.");
1588         // return;
1589         // }
1590         Log.d(LOG, "onSearchTextChange: " + text);
1591         if (currentSearchOperation != null) {
1592             Log.d(LOG, "Interrupting currentSearchOperation.");
1593             currentSearchOperation.interrupted.set(true);
1594         }
1595         currentSearchOperation = new SearchOperation(text, index);
1596         searchExecutor.execute(currentSearchOperation);
1597     }
1598
1599     // --------------------------------------------------------------------------
1600     // Filtered results.
1601     // --------------------------------------------------------------------------
1602
1603     boolean isFiltered() {
1604         return rowsToShow != null;
1605     }
1606
1607     void setFiltered(final SearchOperation searchOperation) {
1608         if (nextWordMenuItem != null) {
1609             nextWordMenuItem.setEnabled(false);
1610             previousWordMenuItem.setEnabled(false);
1611         }
1612         rowsToShow = searchOperation.multiWordSearchResult;
1613         setListAdapter(new IndexAdapter(index, rowsToShow, searchOperation.searchTokens));
1614     }
1615
1616     void clearFiltered() {
1617         if (nextWordMenuItem != null) {
1618             nextWordMenuItem.setEnabled(true);
1619             previousWordMenuItem.setEnabled(true);
1620         }
1621         setListAdapter(new IndexAdapter(index));
1622         rowsToShow = null;
1623     }
1624
1625 }