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