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