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

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