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