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