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