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