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