src/com/hughes/android/dictionary/DictionaryActivity.java

   1 // Copyright 2011 Google Inc. All Rights Reserved.
   2 // Some Parts Copyright 2013 Dominik Köppl
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 package com.hughes.android.dictionary;
  16
  17 import android.annotation.SuppressLint;
  18 import android.app.Dialog;
  19 import android.app.SearchManager;
  20 import android.content.Context;
  21 import android.content.Intent;
  22 import android.content.SharedPreferences;
  23 import android.graphics.Color;
  24 import android.graphics.Typeface;
  25 import android.net.Uri;
  26 import android.os.Bundle;
  27 import android.os.Handler;
  28 import android.preference.PreferenceManager;
  29 import android.speech.tts.TextToSpeech;
  30 import android.speech.tts.TextToSpeech.OnInitListener;
  31 import android.text.ClipboardManager;
  32 import android.text.Spannable;
  33 import android.text.method.LinkMovementMethod;
  34 import android.text.style.ClickableSpan;
  35 import android.text.style.StyleSpan;
  36 import android.util.Log;
  37 import android.util.TypedValue;
  38 import android.view.ContextMenu;
  39 import android.view.ContextMenu.ContextMenuInfo;
  40 import android.view.Gravity;
  41 import android.view.KeyEvent;
  42 import android.view.MotionEvent;
  43 import android.view.View;
  44 import android.view.View.OnClickListener;
  45 import android.view.View.OnLongClickListener;
  46 import android.view.ViewGroup;
  47 import android.view.WindowManager;
  48 import android.view.inputmethod.EditorInfo;
  49 import android.view.inputmethod.InputMethodManager;
  50 import android.widget.AdapterView.AdapterContextMenuInfo;
  51 import android.widget.BaseAdapter;
  52 import android.widget.Button;
  53 import android.widget.FrameLayout;
  54 import android.widget.ImageButton;
  55 import android.widget.ImageView;
  56 import android.widget.ImageView.ScaleType;
  57 import android.widget.LinearLayout;
  58 import android.widget.ListAdapter;
  59 import android.widget.ListView;
  60 import android.widget.TableLayout;
  61 import android.widget.TableRow;
  62 import android.widget.TextView;
  63 import android.widget.TextView.BufferType;
  64 import android.widget.Toast;
  65
  66 import com.actionbarsherlock.app.ActionBar;
  67 import com.actionbarsherlock.app.SherlockListActivity;
  68 import com.actionbarsherlock.view.Menu;
  69 import com.actionbarsherlock.view.MenuItem;
  70 import com.actionbarsherlock.view.MenuItem.OnMenuItemClickListener;
  71 import com.actionbarsherlock.widget.SearchView;
  72 import com.actionbarsherlock.widget.SearchView.OnQueryTextListener;
  73 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  74 import com.hughes.android.dictionary.engine.Dictionary;
  75 import com.hughes.android.dictionary.engine.EntrySource;
  76 import com.hughes.android.dictionary.engine.HtmlEntry;
  77 import com.hughes.android.dictionary.engine.Index;
  78 import com.hughes.android.dictionary.engine.Index.IndexEntry;
  79 import com.hughes.android.dictionary.engine.Language;
  80 import com.hughes.android.dictionary.engine.Language.LanguageResources;
  81 import com.hughes.android.dictionary.engine.PairEntry;
  82 import com.hughes.android.dictionary.engine.PairEntry.Pair;
  83 import com.hughes.android.dictionary.engine.RowBase;
  84 import com.hughes.android.dictionary.engine.TokenRow;
  85 import com.hughes.android.dictionary.engine.TransliteratorManager;
  86 import com.hughes.android.util.IntentLauncher;
  87 import com.hughes.android.util.NonLinkClickableSpan;
  88 import com.hughes.util.StringUtil;
  89
  90 import java.io.File;
  91 import java.io.FileWriter;
  92 import java.io.IOException;
  93 import java.io.PrintWriter;
  94 import java.io.RandomAccessFile;
  95 import java.text.SimpleDateFormat;
  96 import java.util.Arrays;
  97 import java.util.Collections;
  98 import java.util.Date;
  99 import java.util.HashMap;
 100 import java.util.LinkedHashSet;
 101 import java.util.List;
 102 import java.util.Locale;
 103 import java.util.Random;
 104 import java.util.Set;
 105 import java.util.concurrent.Executor;
 106 import java.util.concurrent.Executors;
 107 import java.util.concurrent.ThreadFactory;
 108 import java.util.concurrent.atomic.AtomicBoolean;
 109 import java.util.regex.Matcher;
 110 import java.util.regex.Pattern;
 111
 112 public class DictionaryActivity extends SherlockListActivity {
 113
 114     static final String LOG = "QuickDic";
 115
 116     DictionaryApplication application;
 117
 118     File dictFile = null;
 119     RandomAccessFile dictRaf = null;
 120
 121     Dictionary dictionary = null;
 122
 123     int indexIndex = 0;
 124
 125     Index index = null;
 126
 127     List<RowBase> rowsToShow = null; // if not null, just show these rows.
 128
 129     final Handler uiHandler = new Handler();
 130
 131     private final Executor searchExecutor = Executors.newSingleThreadExecutor(new ThreadFactory() {
 132         @Override
 133         public Thread newThread(Runnable r) {
 134             return new Thread(r, "searchExecutor");
 135         }
 136     });
 137
 138     private SearchOperation currentSearchOperation = null;
 139
 140     TextToSpeech textToSpeech;
 141     volatile boolean ttsReady;
 142
 143     Typeface typeface;
 144     C.Theme theme = C.Theme.LIGHT;
 145     int textColorFg = Color.BLACK;
 146     int fontSizeSp;
 147
 148     SearchView searchView;
 149     ImageButton languageButton;
 150     SearchView.OnQueryTextListener onQueryTextListener;
 151
 152     MenuItem nextWordMenuItem, previousWordMenuItem;
 153
 154     // Never null.
 155     private File wordList = null;
 156     private boolean saveOnlyFirstSubentry = false;
 157     private boolean clickOpensContextMenu = false;
 158
 159     // Visible for testing.
 160     ListAdapter indexAdapter = null;
 161
 162     /**
 163      * For some languages, loading the transliterators used in this search takes
 164      * a long time, so we fire it up on a different thread, and don't invoke it
 165      * from the main thread until it's already finished once.
 166      */
 167     private volatile boolean indexPrepFinished = false;
 168
 169     public DictionaryActivity() {
 170     }
 171
 172     public static Intent getLaunchIntent(final File dictFile, final String indexShortName,
 173             final String searchToken) {
 174         final Intent intent = new Intent();
 175         intent.setClassName(DictionaryActivity.class.getPackage().getName(),
 176                 DictionaryActivity.class.getName());
 177         intent.putExtra(C.DICT_FILE, dictFile.getPath());
 178         intent.putExtra(C.INDEX_SHORT_NAME, indexShortName);
 179         intent.putExtra(C.SEARCH_TOKEN, searchToken);
 180         return intent;
 181     }
 182
 183     @Override
 184     protected void onSaveInstanceState(final Bundle outState) {
 185         super.onSaveInstanceState(outState);
 186         Log.d(LOG, "onSaveInstanceState: " + searchView.getQuery().toString());
 187         outState.putString(C.INDEX_SHORT_NAME, index.shortName);
 188         outState.putString(C.SEARCH_TOKEN, searchView.getQuery().toString());
 189     }
 190
 191     @Override
 192     protected void onRestoreInstanceState(final Bundle savedInstanceState) {
 193         super.onRestoreInstanceState(savedInstanceState);
 194         Log.d(LOG, "onRestoreInstanceState: " + savedInstanceState.getString(C.SEARCH_TOKEN));
 195         onCreate(savedInstanceState);
 196     }
 197
 198     @Override
 199     public void onCreate(Bundle savedInstanceState) {
 200         Log.d(LOG, "onCreate:" + this);
 201         super.onCreate(savedInstanceState);
 202
 203         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 204
 205         // Don't auto-launch if this fails.
 206         prefs.edit().remove(C.DICT_FILE).commit();
 207
 208         setTheme(((DictionaryApplication) getApplication()).getSelectedTheme().themeId);
 209
 210         application = (DictionaryApplication) getApplication();
 211         theme = application.getSelectedTheme();
 212         textColorFg = getResources().getColor(theme.tokenRowFgColor);
 213
 214         final Intent intent = getIntent();
 215         String intentAction = intent.getAction();
 216         /**
 217          * @author Dominik Köppl Querying the Intent
 218          *         com.hughes.action.ACTION_SEARCH_DICT is the advanced query
 219          *         Arguments: SearchManager.QUERY -> the phrase to search from
 220          *         -> language in which the phrase is written to -> to which
 221          *         language shall be translated
 222          */
 223         if (intentAction != null && intentAction.equals("com.hughes.action.ACTION_SEARCH_DICT"))
 224         {
 225             String query = intent.getStringExtra(SearchManager.QUERY);
 226             String from = intent.getStringExtra("from");
 227             if (from != null)
 228                 from = from.toLowerCase(Locale.US);
 229             String to = intent.getStringExtra("to");
 230             if (to != null)
 231                 to = to.toLowerCase(Locale.US);
 232             if (query != null)
 233             {
 234                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 235             }
 236             if (intent.getStringExtra(C.DICT_FILE) == null && (from != null || to != null))
 237             {
 238                 Log.d(LOG, "DictSearch: from: " + from + " to " + to);
 239                 List<DictionaryInfo> dicts = application.getDictionariesOnDevice(null);
 240                 for (DictionaryInfo info : dicts)
 241                 {
 242                     boolean hasFrom = from == null;
 243                     boolean hasTo = to == null;
 244                     for (IndexInfo index : info.indexInfos)
 245                     {
 246                         if (!hasFrom && index.shortName.toLowerCase(Locale.US).equals(from))
 247                             hasFrom = true;
 248                         if (!hasTo && index.shortName.toLowerCase(Locale.US).equals(to))
 249                             hasTo = true;
 250                     }
 251                     if (hasFrom && hasTo)
 252                     {
 253                         if (from != null)
 254                         {
 255                             int which_index = 0;
 256                             for (; which_index < info.indexInfos.size(); ++which_index)
 257                             {
 258                                 if (info.indexInfos.get(which_index).shortName.toLowerCase(
 259                                         Locale.US).equals(from))
 260                                     break;
 261                             }
 262                             intent.putExtra(C.INDEX_SHORT_NAME,
 263                                     info.indexInfos.get(which_index).shortName);
 264
 265                         }
 266                         intent.putExtra(C.DICT_FILE, application.getPath(info.uncompressedFilename)
 267                                 .toString());
 268                         break;
 269                     }
 270                 }
 271
 272             }
 273         }
 274         /**
 275          * @author Dominik Köppl Querying the Intent Intent.ACTION_SEARCH is a
 276          *         simple query Arguments follow from android standard (see
 277          *         documentation)
 278          */
 279         if (intentAction != null && intentAction.equals(Intent.ACTION_SEARCH))
 280         {
 281             String query = intent.getStringExtra(SearchManager.QUERY);
 282             if (query != null)
 283                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 284         }
 285         /**
 286          * @author Dominik Köppl If no dictionary is chosen, use the default
 287          *         dictionary specified in the preferences If this step does
 288          *         fail (no default directory specified), show a toast and
 289          *         abort.
 290          */
 291         if (intent.getStringExtra(C.DICT_FILE) == null)
 292         {
 293             String dictfile = prefs.getString(getString(R.string.defaultDicKey), null);
 294             if (dictfile != null)
 295                 intent.putExtra(C.DICT_FILE, application.getPath(dictfile).toString());
 296         }
 297         String dictFilename = intent.getStringExtra(C.DICT_FILE);
 298
 299         if (dictFilename == null)
 300         {
 301             Toast.makeText(this, getString(R.string.no_dict_file), Toast.LENGTH_LONG).show();
 302             startActivity(DictionaryManagerActivity.getLaunchIntent());
 303             finish();
 304             return;
 305         }
 306         if (dictFilename != null)
 307             dictFile = new File(dictFilename);
 308
 309         ttsReady = false;
 310         textToSpeech = new TextToSpeech(getApplicationContext(), new OnInitListener() {
 311             @Override
 312             public void onInit(int status) {
 313                 ttsReady = true;
 314                 updateTTSLanguage();
 315             }
 316         });
 317
 318         try {
 319             final String name = application.getDictionaryName(dictFile.getName());
 320             this.setTitle("QuickDic: " + name);
 321             dictRaf = new RandomAccessFile(dictFile, "r");
 322             dictionary = new Dictionary(dictRaf);
 323         } catch (Exception e) {
 324             Log.e(LOG, "Unable to load dictionary.", e);
 325             if (dictRaf != null) {
 326                 try {
 327                     dictRaf.close();
 328                 } catch (IOException e1) {
 329                     Log.e(LOG, "Unable to close dictRaf.", e1);
 330                 }
 331                 dictRaf = null;
 332             }
 333             Toast.makeText(this, getString(R.string.invalidDictionary, "", e.getMessage()),
 334                     Toast.LENGTH_LONG).show();
 335             startActivity(DictionaryManagerActivity.getLaunchIntent());
 336             finish();
 337             return;
 338         }
 339         String targetIndex = intent.getStringExtra(C.INDEX_SHORT_NAME);
 340         if (savedInstanceState != null && savedInstanceState.getString(C.INDEX_SHORT_NAME) != null) {
 341             targetIndex = savedInstanceState.getString(C.INDEX_SHORT_NAME);
 342         }
 343         indexIndex = 0;
 344         for (int i = 0; i < dictionary.indices.size(); ++i) {
 345             if (dictionary.indices.get(i).shortName.equals(targetIndex)) {
 346                 indexIndex = i;
 347                 break;
 348             }
 349         }
 350         Log.d(LOG, "Loading index " + indexIndex);
 351         index = dictionary.indices.get(indexIndex);
 352         setListAdapter(new IndexAdapter(index));
 353
 354         // Pre-load the collators.
 355         new Thread(new Runnable() {
 356             public void run() {
 357                 final long startMillis = System.currentTimeMillis();
 358                 try {
 359                     TransliteratorManager.init(new TransliteratorManager.Callback() {
 360                         @Override
 361                         public void onTransliteratorReady() {
 362                             uiHandler.post(new Runnable() {
 363                                 @Override
 364                                 public void run() {
 365                                     onSearchTextChange(searchView.getQuery().toString());
 366                                 }
 367                             });
 368                         }
 369                     });
 370
 371                     for (final Index index : dictionary.indices) {
 372                         final String searchToken = index.sortedIndexEntries.get(0).token;
 373                         final IndexEntry entry = index.findExact(searchToken);
 374                         if (!searchToken.equals(entry.token)) {
 375                             Log.e(LOG, "Couldn't find token: " + searchToken + ", " + entry.token);
 376                         }
 377                     }
 378                     indexPrepFinished = true;
 379                 } catch (Exception e) {
 380                     Log.w(LOG,
 381                             "Exception while prepping.  This can happen if dictionary is closed while search is happening.");
 382                 }
 383                 Log.d(LOG, "Prepping indices took:" + (System.currentTimeMillis() - startMillis));
 384             }
 385         }).start();
 386
 387         String fontName = prefs.getString(getString(R.string.fontKey), "FreeSerif.ttf.jpg");
 388         if ("SYSTEM".equals(fontName)) {
 389             typeface = Typeface.DEFAULT;
 390         } else {
 391             try {
 392                 typeface = Typeface.createFromAsset(getAssets(), fontName);
 393             } catch (Exception e) {
 394                 Log.w(LOG, "Exception trying to use typeface, using default.", e);
 395                 Toast.makeText(this, getString(R.string.fontFailure, e.getLocalizedMessage()),
 396                         Toast.LENGTH_LONG).show();
 397             }
 398         }
 399         if (typeface == null) {
 400             Log.w(LOG, "Unable to create typeface, using default.");
 401             typeface = Typeface.DEFAULT;
 402         }
 403         final String fontSize = prefs.getString(getString(R.string.fontSizeKey), "14");
 404         try {
 405             fontSizeSp = Integer.parseInt(fontSize.trim());
 406         } catch (NumberFormatException e) {
 407             fontSizeSp = 14;
 408         }
 409
 410         setContentView(R.layout.dictionary_activity);
 411
 412         // ContextMenu.
 413         registerForContextMenu(getListView());
 414
 415         // Cache some prefs.
 416         wordList = application.getWordListFile();
 417         saveOnlyFirstSubentry = prefs.getBoolean(getString(R.string.saveOnlyFirstSubentryKey),
 418                 false);
 419         clickOpensContextMenu = prefs.getBoolean(getString(R.string.clickOpensContextMenuKey),
 420                 false);
 421         Log.d(LOG, "wordList=" + wordList + ", saveOnlyFirstSubentry=" + saveOnlyFirstSubentry);
 422
 423         onCreateSetupActionBarAndSearchView();
 424
 425         // Set the search text from the intent, then the saved state.
 426         String text = getIntent().getStringExtra(C.SEARCH_TOKEN);
 427         if (savedInstanceState != null) {
 428             text = savedInstanceState.getString(C.SEARCH_TOKEN);
 429         }
 430         if (text == null) {
 431             text = "";
 432         }
 433         setSearchText(text, true);
 434         Log.d(LOG, "Trying to restore searchText=" + text);
 435
 436         setDictionaryPrefs(this, dictFile, index.shortName, searchView.getQuery().toString());
 437
 438         updateLangButton();
 439         searchView.requestFocus();
 440
 441         // http://stackoverflow.com/questions/2833057/background-listview-becomes-black-when-scrolling
 442         getListView().setCacheColorHint(0);
 443     }
 444
 445     private void onCreateSetupActionBarAndSearchView() {
 446         ActionBar actionBar = getSupportActionBar();
 447         actionBar.setDisplayShowTitleEnabled(false);
 448         actionBar.setDisplayShowHomeEnabled(false);
 449         actionBar.setDisplayHomeAsUpEnabled(false);
 450
 451         final LinearLayout customSearchView = new LinearLayout(getSupportActionBar().getThemedContext());
 452
 453         final int width = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 300,
 454                 getResources().getDisplayMetrics());
 455         final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 456                 width, ViewGroup.LayoutParams.WRAP_CONTENT);
 457         customSearchView.setLayoutParams(layoutParams);
 458
 459         languageButton = new ImageButton(customSearchView.getContext());
 460         languageButton.setMinimumWidth(application.languageButtonPixels);
 461         languageButton.setMinimumHeight(application.languageButtonPixels * 2 / 3);
 462         languageButton.setScaleType(ScaleType.FIT_CENTER);
 463         languageButton.setOnClickListener(new OnClickListener() {
 464             @Override
 465             public void onClick(View arg0) {
 466                 onLanguageButtonClick();
 467             }
 468         });
 469         languageButton.setOnLongClickListener(new OnLongClickListener() {
 470             @Override
 471             public boolean onLongClick(View v) {
 472                 onLanguageButtonLongClick(v.getContext());
 473                 return true;
 474             }
 475         });
 476         customSearchView.addView(languageButton);
 477
 478         searchView = new SearchView(customSearchView.getContext());
 479         searchView.setIconifiedByDefault(false);
 480         // searchView.setIconified(false); // puts the magnifying glass in the
 481         // wrong place.
 482         searchView.setQueryHint(getString(R.string.searchText));
 483         searchView.setSubmitButtonEnabled(false);
 484         LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(0,
 485                 FrameLayout.LayoutParams.WRAP_CONTENT);
 486         lp.weight = 1;
 487         searchView.setLayoutParams(lp);
 488         searchView.setImeOptions(
 489                 EditorInfo.IME_ACTION_SEARCH |
 490                         EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 491                         EditorInfo.IME_FLAG_NO_ENTER_ACTION |
 492                         // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 493                         // 11
 494                         EditorInfo.IME_MASK_ACTION |
 495                         EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 496         onQueryTextListener = new OnQueryTextListener() {
 497             @Override
 498             public boolean onQueryTextSubmit(String query) {
 499                 Log.d(LOG, "OnQueryTextListener: onQueryTextSubmit: " + searchView.getQuery());
 500                 return true;
 501             }
 502
 503             @Override
 504             public boolean onQueryTextChange(String newText) {
 505                 Log.d(LOG, "OnQueryTextListener: onQueryTextChange: " + searchView.getQuery());
 506                 onSearchTextChange(searchView.getQuery().toString());
 507                 return true;
 508             }
 509         };
 510         searchView.setOnQueryTextListener(onQueryTextListener);
 511         searchView.setFocusable(true);
 512         customSearchView.addView(searchView);
 513
 514         // Clear the searchHint icon so that it takes as little space as possible.
 515         ImageView searchHintIcon = (ImageView) searchView.findViewById(R.id.abs__search_mag_icon);
 516         searchHintIcon.setBackgroundResource(android.R.color.transparent);
 517         searchHintIcon.setLayoutParams(new LinearLayout.LayoutParams(1, 1));
 518         searchHintIcon.setAdjustViewBounds(true);
 519         searchHintIcon.setPadding(0, 0, 0, 0);
 520
 521         actionBar.setCustomView(customSearchView);
 522         actionBar.setDisplayShowCustomEnabled(true);
 523     }
 524
 525     @Override
 526     protected void onResume() {
 527         Log.d(LOG, "onResume");
 528         super.onResume();
 529         if (PreferenceActivity.prefsMightHaveChanged) {
 530             PreferenceActivity.prefsMightHaveChanged = false;
 531             finish();
 532             startActivity(getIntent());
 533         }
 534         showKeyboard();
 535     }
 536
 537     @Override
 538     protected void onPause() {
 539         super.onPause();
 540     }
 541
 542     @Override
 543     /**
 544      * Invoked when MyWebView returns, since the user might have clicked some
 545      * hypertext in the MyWebView.
 546      */
 547     protected void onActivityResult(int requestCode, int resultCode, Intent result) {
 548         super.onActivityResult(requestCode, resultCode, result);
 549         if (result != null && result.hasExtra(C.SEARCH_TOKEN)) {
 550             Log.d(LOG, "onActivityResult: " + result.getStringExtra(C.SEARCH_TOKEN));
 551             jumpToTextFromHyperLink(result.getStringExtra(C.SEARCH_TOKEN), indexIndex);
 552         }
 553     }
 554
 555     private static void setDictionaryPrefs(final Context context, final File dictFile,
 556             final String indexShortName, final String searchToken) {
 557         final SharedPreferences.Editor prefs = PreferenceManager.getDefaultSharedPreferences(
 558                 context).edit();
 559         prefs.putString(C.DICT_FILE, dictFile.getPath());
 560         prefs.putString(C.INDEX_SHORT_NAME, indexShortName);
 561         prefs.putString(C.SEARCH_TOKEN, ""); // Don't need to save search token.
 562         prefs.commit();
 563     }
 564
 565     @Override
 566     protected void onDestroy() {
 567         super.onDestroy();
 568         if (dictRaf == null) {
 569             return;
 570         }
 571
 572         final SearchOperation searchOperation = currentSearchOperation;
 573         currentSearchOperation = null;
 574
 575         // Before we close the RAF, we have to wind the current search down.
 576         if (searchOperation != null) {
 577             Log.d(LOG, "Interrupting search to shut down.");
 578             currentSearchOperation = null;
 579             searchOperation.interrupted.set(true);
 580         }
 581
 582         try {
 583             Log.d(LOG, "Closing RAF.");
 584             dictRaf.close();
 585         } catch (IOException e) {
 586             Log.e(LOG, "Failed to close dictionary", e);
 587         }
 588         dictRaf = null;
 589     }
 590
 591     // --------------------------------------------------------------------------
 592     // Buttons
 593     // --------------------------------------------------------------------------
 594
 595     private void showKeyboard() {
 596         // For some reason, this doesn't always work the first time.
 597         // One way to replicate the problem:
 598         // Press the "task switch" button repeatedly to pause and resume
 599         for (int delay = 1; delay <= 101; delay += 100) {
 600             searchView.postDelayed(new Runnable() {
 601                 @Override
 602                 public void run() {
 603                     Log.d(LOG, "Trying to show soft keyboard.");
 604                     final boolean searchTextHadFocus = searchView.hasFocus();
 605                     searchView.requestFocusFromTouch();
 606                     final InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 607                     manager.showSoftInput(searchView, InputMethodManager.SHOW_IMPLICIT);
 608                     if (!searchTextHadFocus) {
 609                         defocusSearchText();
 610                     }
 611                 }
 612             }, delay);
 613         }
 614     }
 615
 616     void updateLangButton() {
 617         final LanguageResources languageResources =
 618                 Language.isoCodeToResources.get(index.shortName);
 619         if (languageResources != null && languageResources.flagId != 0) {
 620             languageButton.setImageResource(languageResources.flagId);
 621         } else {
 622             if (indexIndex % 2 == 0) {
 623                 languageButton.setImageResource(android.R.drawable.ic_media_next);
 624             } else {
 625                 languageButton.setImageResource(android.R.drawable.ic_media_previous);
 626             }
 627         }
 628         updateTTSLanguage();
 629     }
 630
 631     private void updateTTSLanguage() {
 632         if (!ttsReady || index == null || textToSpeech == null) {
 633             Log.d(LOG, "Can't updateTTSLanguage.");
 634             return;
 635         }
 636         final Locale locale = new Locale(index.sortLanguage.getIsoCode());
 637         Log.d(LOG, "Setting TTS locale to: " + locale);
 638         final int ttsResult = textToSpeech.setLanguage(locale);
 639         if (ttsResult != TextToSpeech.LANG_AVAILABLE ||
 640                 ttsResult != TextToSpeech.LANG_COUNTRY_AVAILABLE) {
 641             Log.e(LOG, "TTS not available in this language: ttsResult=" + ttsResult);
 642         }
 643     }
 644
 645     void onLanguageButtonClick() {
 646         if (dictionary.indices.size() == 1) {
 647             // No need to work to switch indices.
 648             return;
 649         }
 650         if (currentSearchOperation != null) {
 651             currentSearchOperation.interrupted.set(true);
 652             currentSearchOperation = null;
 653         }
 654         setIndexAndSearchText((indexIndex + 1) % dictionary.indices.size(),
 655                 searchView.getQuery().toString());
 656     }
 657
 658     void onLanguageButtonLongClick(final Context context) {
 659         final Dialog dialog = new Dialog(context);
 660         dialog.setContentView(R.layout.select_dictionary_dialog);
 661         dialog.setTitle(R.string.selectDictionary);
 662
 663         final List<DictionaryInfo> installedDicts = application.getDictionariesOnDevice(null);
 664
 665         ListView listView = (ListView) dialog.findViewById(android.R.id.list);
 666         final Button button = new Button(listView.getContext());
 667         final String name = getString(R.string.dictionaryManager);
 668         button.setText(name);
 669         final IntentLauncher intentLauncher = new IntentLauncher(listView.getContext(),
 670                 DictionaryManagerActivity.getLaunchIntent()) {
 671             @Override
 672             protected void onGo() {
 673                 dialog.dismiss();
 674                 DictionaryActivity.this.finish();
 675             };
 676         };
 677         button.setOnClickListener(intentLauncher);
 678         listView.addHeaderView(button);
 679
 680         listView.setAdapter(new BaseAdapter() {
 681             @Override
 682             public View getView(int position, View convertView, ViewGroup parent) {
 683                 final DictionaryInfo dictionaryInfo = getItem(position);
 684
 685                 final LinearLayout result = new LinearLayout(parent.getContext());
 686
 687                 for (int i = 0; i < dictionaryInfo.indexInfos.size(); ++i) {
 688                     final IndexInfo indexInfo = dictionaryInfo.indexInfos.get(i);
 689                     final View button = application.createButton(parent.getContext(),
 690                             dictionaryInfo, indexInfo);
 691                     final IntentLauncher intentLauncher = new IntentLauncher(parent.getContext(),
 692                             getLaunchIntent(
 693                                     application.getPath(dictionaryInfo.uncompressedFilename),
 694                                     indexInfo.shortName, searchView.getQuery().toString())) {
 695                         @Override
 696                         protected void onGo() {
 697                             dialog.dismiss();
 698                             DictionaryActivity.this.finish();
 699                         };
 700                     };
 701                     button.setOnClickListener(intentLauncher);
 702                     result.addView(button);
 703                 }
 704
 705                 final TextView nameView = new TextView(parent.getContext());
 706                 final String name = application
 707                         .getDictionaryName(dictionaryInfo.uncompressedFilename);
 708                 nameView.setText(name);
 709                 final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 710                         ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 711                 layoutParams.width = 0;
 712                 layoutParams.weight = 1.0f;
 713                 nameView.setLayoutParams(layoutParams);
 714                 nameView.setGravity(Gravity.CENTER_VERTICAL);
 715                 result.addView(nameView);
 716                 return result;
 717             }
 718
 719             @Override
 720             public long getItemId(int position) {
 721                 return position;
 722             }
 723
 724             @Override
 725             public DictionaryInfo getItem(int position) {
 726                 return installedDicts.get(position);
 727             }
 728
 729             @Override
 730             public int getCount() {
 731                 return installedDicts.size();
 732             }
 733         });
 734         dialog.show();
 735     }
 736
 737     void onUpDownButton(final boolean up) {
 738         if (isFiltered()) {
 739             return;
 740         }
 741         final int firstVisibleRow = getListView().getFirstVisiblePosition();
 742         final RowBase row = index.rows.get(firstVisibleRow);
 743         final TokenRow tokenRow = row.getTokenRow(true);
 744         final int destIndexEntry;
 745         if (up) {
 746             if (row != tokenRow) {
 747                 destIndexEntry = tokenRow.referenceIndex;
 748             } else {
 749                 destIndexEntry = Math.max(tokenRow.referenceIndex - 1, 0);
 750             }
 751         } else {
 752             // Down
 753             destIndexEntry = Math.min(tokenRow.referenceIndex + 1, index.sortedIndexEntries.size());
 754         }
 755         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 756         Log.d(LOG, "onUpDownButton, destIndexEntry=" + dest.token);
 757         setSearchText(dest.token, false);
 758         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 759         defocusSearchText();
 760     }
 761
 762     // --------------------------------------------------------------------------
 763     // Options Menu
 764     // --------------------------------------------------------------------------
 765
 766     final Random random = new Random();
 767
 768     @Override
 769     public boolean onCreateOptionsMenu(final Menu menu) {
 770
 771         if (PreferenceManager.getDefaultSharedPreferences(this)
 772                 .getBoolean(getString(R.string.showPrevNextButtonsKey), true)) {
 773             // Next word.
 774             nextWordMenuItem = menu.add(getString(R.string.nextWord))
 775                     .setIcon(R.drawable.arrow_down_float);
 776             nextWordMenuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
 777             nextWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 778                 @Override
 779                 public boolean onMenuItemClick(MenuItem item) {
 780                     onUpDownButton(false);
 781                     return true;
 782                 }
 783             });
 784
 785             // Previous word.
 786             previousWordMenuItem = menu.add(getString(R.string.previousWord))
 787                     .setIcon(R.drawable.arrow_up_float);
 788             previousWordMenuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
 789             previousWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 790                 @Override
 791                 public boolean onMenuItemClick(MenuItem item) {
 792                     onUpDownButton(true);
 793                     return true;
 794                 }
 795             });
 796         }
 797
 798         application.onCreateGlobalOptionsMenu(this, menu);
 799
 800         {
 801             final MenuItem dictionaryManager = menu.add(getString(R.string.dictionaryManager));
 802             dictionaryManager.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
 803             dictionaryManager.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 804                 public boolean onMenuItemClick(final MenuItem menuItem) {
 805                     startActivity(DictionaryManagerActivity.getLaunchIntent());
 806                     finish();
 807                     return false;
 808                 }
 809             });
 810         }
 811
 812         {
 813             final MenuItem aboutDictionary = menu.add(getString(R.string.aboutDictionary));
 814             aboutDictionary.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
 815             aboutDictionary.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 816                 public boolean onMenuItemClick(final MenuItem menuItem) {
 817                     final Context context = getListView().getContext();
 818                     final Dialog dialog = new Dialog(context);
 819                     dialog.setContentView(R.layout.about_dictionary_dialog);
 820                     final TextView textView = (TextView) dialog.findViewById(R.id.text);
 821
 822                     final String name = application.getDictionaryName(dictFile.getName());
 823                     dialog.setTitle(name);
 824
 825                     final StringBuilder builder = new StringBuilder();
 826                     final DictionaryInfo dictionaryInfo = dictionary.getDictionaryInfo();
 827                     dictionaryInfo.uncompressedBytes = dictFile.length();
 828                     if (dictionaryInfo != null) {
 829                         builder.append(dictionaryInfo.dictInfo).append("\n\n");
 830                         builder.append(getString(R.string.dictionaryPath, dictFile.getPath()))
 831                                 .append("\n");
 832                         builder.append(
 833                                 getString(R.string.dictionarySize, dictionaryInfo.uncompressedBytes))
 834                                 .append("\n");
 835                         builder.append(
 836                                 getString(R.string.dictionaryCreationTime,
 837                                         dictionaryInfo.creationMillis)).append("\n");
 838                         for (final IndexInfo indexInfo : dictionaryInfo.indexInfos) {
 839                             builder.append("\n");
 840                             builder.append(getString(R.string.indexName, indexInfo.shortName))
 841                                     .append("\n");
 842                             builder.append(
 843                                     getString(R.string.mainTokenCount, indexInfo.mainTokenCount))
 844                                     .append("\n");
 845                         }
 846                         builder.append("\n");
 847                         builder.append(getString(R.string.sources)).append("\n");
 848                         for (final EntrySource source : dictionary.sources) {
 849                             builder.append(
 850                                     getString(R.string.sourceInfo, source.getName(),
 851                                             source.getNumEntries())).append("\n");
 852                         }
 853                     }
 854                     textView.setText(builder.toString());
 855
 856                     dialog.show();
 857                     final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
 858                     layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
 859                     layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
 860                     dialog.getWindow().setAttributes(layoutParams);
 861                     return false;
 862                 }
 863             });
 864         }
 865
 866         return true;
 867     }
 868
 869     // --------------------------------------------------------------------------
 870     // Context Menu + clicks
 871     // --------------------------------------------------------------------------
 872
 873     @Override
 874     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
 875         AdapterContextMenuInfo adapterContextMenuInfo = (AdapterContextMenuInfo) menuInfo;
 876         final RowBase row = (RowBase) getListAdapter().getItem(adapterContextMenuInfo.position);
 877
 878         final android.view.MenuItem addToWordlist = menu.add(getString(R.string.addToWordList,
 879                 wordList.getName()));
 880         addToWordlist
 881                 .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 882                     public boolean onMenuItemClick(android.view.MenuItem item) {
 883                         onAppendToWordList(row);
 884                         return false;
 885                     }
 886                 });
 887
 888         final android.view.MenuItem share = menu.add("Share");
 889         share.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 890             public boolean onMenuItemClick(android.view.MenuItem item) {
 891                 Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
 892                 shareIntent.setType("text/plain");
 893                 shareIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, row.getTokenRow(true)
 894                         .getToken());
 895                 shareIntent.putExtra(android.content.Intent.EXTRA_TEXT,
 896                         row.getRawText(saveOnlyFirstSubentry));
 897                 startActivity(shareIntent);
 898                 return false;
 899             }
 900         });
 901
 902         final android.view.MenuItem copy = menu.add(android.R.string.copy);
 903         copy.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 904             public boolean onMenuItemClick(android.view.MenuItem item) {
 905                 onCopy(row);
 906                 return false;
 907             }
 908         });
 909
 910         if (selectedSpannableText != null) {
 911             final String selectedText = selectedSpannableText;
 912             final android.view.MenuItem searchForSelection = menu.add(getString(
 913                     R.string.searchForSelection,
 914                     selectedSpannableText));
 915             searchForSelection
 916                     .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 917                         public boolean onMenuItemClick(android.view.MenuItem item) {
 918                             jumpToTextFromHyperLink(selectedText, selectedSpannableIndex);
 919                             return false;
 920                         }
 921                     });
 922             // Rats, this won't be shown:
 923             searchForSelection.setIcon(R.drawable.abs__ic_search);
 924         }
 925
 926         if (row instanceof TokenRow && ttsReady) {
 927             final android.view.MenuItem speak = menu.add(R.string.speak);
 928             speak.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 929                 @Override
 930                 public boolean onMenuItemClick(android.view.MenuItem item) {
 931                     textToSpeech.speak(((TokenRow) row).getToken(), TextToSpeech.QUEUE_FLUSH,
 932                             new HashMap<String, String>());
 933                     return false;
 934                 }
 935             });
 936         }
 937     }
 938
 939     private void jumpToTextFromHyperLink(
 940             final String selectedText, final int defaultIndexToUse) {
 941         int indexToUse = -1;
 942         for (int i = 0; i < dictionary.indices.size(); ++i) {
 943             final Index index = dictionary.indices.get(i);
 944             if (indexPrepFinished) {
 945                 System.out.println("Doing index lookup: on " + selectedText);
 946                 final IndexEntry indexEntry = index.findExact(selectedText);
 947                 if (indexEntry != null) {
 948                     final TokenRow tokenRow = index.rows.get(indexEntry.startRow)
 949                             .getTokenRow(false);
 950                     if (tokenRow != null && tokenRow.hasMainEntry) {
 951                         indexToUse = i;
 952                         break;
 953                     }
 954                 }
 955             } else {
 956                 Log.w(LOG, "Skipping findExact on index " + index.shortName);
 957             }
 958         }
 959         if (indexToUse == -1) {
 960             indexToUse = defaultIndexToUse;
 961         }
 962         // Without this extra delay, the call to jumpToRow that this
 963         // invokes doesn't always actually have any effect.
 964         final int actualIndexToUse = indexToUse;
 965         getListView().postDelayed(new Runnable() {
 966             @Override
 967             public void run() {
 968                 setIndexAndSearchText(actualIndexToUse, selectedText);
 969             }
 970         }, 100);
 971     }
 972
 973     /**
 974      * Called when user clicks outside of search text, so that they can start
 975      * typing again immediately.
 976      */
 977     void defocusSearchText() {
 978         // Log.d(LOG, "defocusSearchText");
 979         // Request focus so that if we start typing again, it clears the text
 980         // input.
 981         getListView().requestFocus();
 982
 983         // Visual indication that a new keystroke will clear the search text.
 984         // Doesn't seem to work unless earchText has focus.
 985         // searchView.selectAll();
 986     }
 987
 988     @Override
 989     protected void onListItemClick(ListView l, View v, int row, long id) {
 990         defocusSearchText();
 991         if (clickOpensContextMenu && dictRaf != null) {
 992             openContextMenu(v);
 993         }
 994     }
 995
 996     @SuppressLint("SimpleDateFormat")
 997     void onAppendToWordList(final RowBase row) {
 998         defocusSearchText();
 999
1000         final StringBuilder rawText = new StringBuilder();
1001         rawText.append(new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(new Date())).append("\t");
1002         rawText.append(index.longName).append("\t");
1003         rawText.append(row.getTokenRow(true).getToken()).append("\t");
1004         rawText.append(row.getRawText(saveOnlyFirstSubentry));
1005         Log.d(LOG, "Writing : " + rawText);
1006
1007         try {
1008             wordList.getParentFile().mkdirs();
1009             final PrintWriter out = new PrintWriter(new FileWriter(wordList, true));
1010             out.println(rawText.toString());
1011             out.close();
1012         } catch (Exception e) {
1013             Log.e(LOG, "Unable to append to " + wordList.getAbsolutePath(), e);
1014             Toast.makeText(this,
1015                     getString(R.string.failedAddingToWordList, wordList.getAbsolutePath()),
1016                     Toast.LENGTH_LONG).show();
1017         }
1018         return;
1019     }
1020
1021     @SuppressWarnings("deprecation")
1022     void onCopy(final RowBase row) {
1023         defocusSearchText();
1024
1025         Log.d(LOG, "Copy, row=" + row);
1026         final StringBuilder result = new StringBuilder();
1027         result.append(row.getRawText(false));
1028         final ClipboardManager clipboardManager = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
1029         clipboardManager.setText(result.toString());
1030         Log.d(LOG, "Copied: " + result);
1031     }
1032
1033     @Override
1034     public boolean onKeyDown(final int keyCode, final KeyEvent event) {
1035         if (event.getUnicodeChar() != 0) {
1036             if (!searchView.hasFocus()) {
1037                 setSearchText("" + (char) event.getUnicodeChar(), true);
1038                 searchView.requestFocus();
1039             }
1040             return true;
1041         }
1042         if (keyCode == KeyEvent.KEYCODE_BACK) {
1043             // Log.d(LOG, "Clearing dictionary prefs.");
1044             // Pretend that we just autolaunched so that we won't do it again.
1045             // DictionaryManagerActivity.lastAutoLaunchMillis =
1046             // System.currentTimeMillis();
1047         }
1048         if (keyCode == KeyEvent.KEYCODE_ENTER) {
1049             Log.d(LOG, "Trying to hide soft keyboard.");
1050             final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
1051             inputManager.hideSoftInputFromWindow(this.getCurrentFocus().getWindowToken(),
1052                     InputMethodManager.HIDE_NOT_ALWAYS);
1053             return true;
1054         }
1055         return super.onKeyDown(keyCode, event);
1056     }
1057
1058     private void setIndexAndSearchText(int newIndex, String newSearchText) {
1059         Log.d(LOG, "Changing index to: " + newIndex);
1060         if (newIndex == -1) {
1061             Log.e(LOG, "Invalid index.");
1062             newIndex = 0;
1063         }
1064         if (newIndex != indexIndex) {
1065             indexIndex = newIndex;
1066             index = dictionary.indices.get(indexIndex);
1067             indexAdapter = new IndexAdapter(index);
1068             setListAdapter(indexAdapter);
1069             Log.d(LOG, "changingIndex, newLang=" + index.longName);
1070             setDictionaryPrefs(this, dictFile, index.shortName, searchView.getQuery().toString());
1071             updateLangButton();
1072         }
1073         setSearchText(newSearchText, true);
1074     }
1075
1076     private void setSearchText(final String text, final boolean triggerSearch) {
1077         Log.d(LOG, "setSearchText, text=" + text + ", triggerSearch=" + triggerSearch);
1078         // Disable the listener, because sometimes it doesn't work.
1079         searchView.setOnQueryTextListener(null);
1080         searchView.setQuery(text, false);
1081         moveCursorToRight();
1082         searchView.setOnQueryTextListener(onQueryTextListener);
1083         if (triggerSearch) {
1084             onQueryTextListener.onQueryTextChange(text);
1085         }
1086     }
1087
1088     // private long cursorDelayMillis = 100;
1089     private void moveCursorToRight() {
1090         // if (searchText.getLayout() != null) {
1091         // cursorDelayMillis = 100;
1092         // // Surprising, but this can crash when you rotate...
1093         // Selection.moveToRightEdge(searchView.getQuery(),
1094         // searchText.getLayout());
1095         // } else {
1096         // uiHandler.postDelayed(new Runnable() {
1097         // @Override
1098         // public void run() {
1099         // moveCursorToRight();
1100         // }
1101         // }, cursorDelayMillis);
1102         // cursorDelayMillis = Math.min(10 * 1000, 2 * cursorDelayMillis);
1103         // }
1104     }
1105
1106     // --------------------------------------------------------------------------
1107     // SearchOperation
1108     // --------------------------------------------------------------------------
1109
1110     private void searchFinished(final SearchOperation searchOperation) {
1111         if (searchOperation.interrupted.get()) {
1112             Log.d(LOG, "Search operation was interrupted: " + searchOperation);
1113             return;
1114         }
1115         if (searchOperation != this.currentSearchOperation) {
1116             Log.d(LOG, "Stale searchOperation finished: " + searchOperation);
1117             return;
1118         }
1119
1120         final Index.IndexEntry searchResult = searchOperation.searchResult;
1121         Log.d(LOG, "searchFinished: " + searchOperation + ", searchResult=" + searchResult);
1122
1123         currentSearchOperation = null;
1124         uiHandler.postDelayed(new Runnable() {
1125             @Override
1126             public void run() {
1127                 if (currentSearchOperation == null) {
1128                     if (searchResult != null) {
1129                         if (isFiltered()) {
1130                             clearFiltered();
1131                         }
1132                         jumpToRow(searchResult.startRow);
1133                     } else if (searchOperation.multiWordSearchResult != null) {
1134                         // Multi-row search....
1135                         setFiltered(searchOperation);
1136                     } else {
1137                         throw new IllegalStateException("This should never happen.");
1138                     }
1139                 } else {
1140                     Log.d(LOG, "More coming, waiting for currentSearchOperation.");
1141                 }
1142             }
1143         }, 20);
1144     }
1145
1146     private final void jumpToRow(final int row) {
1147         Log.d(LOG, "jumpToRow: " + row + ", refocusSearchText=" + false);
1148         // getListView().requestFocusFromTouch();
1149         getListView().setSelectionFromTop(row, 0);
1150         getListView().setSelected(true);
1151     }
1152
1153     static final Pattern WHITESPACE = Pattern.compile("\\s+");
1154
1155     final class SearchOperation implements Runnable {
1156
1157         final AtomicBoolean interrupted = new AtomicBoolean(false);
1158
1159         final String searchText;
1160
1161         List<String> searchTokens; // filled in for multiWord.
1162
1163         final Index index;
1164
1165         long searchStartMillis;
1166
1167         Index.IndexEntry searchResult;
1168
1169         List<RowBase> multiWordSearchResult;
1170
1171         boolean done = false;
1172
1173         SearchOperation(final String searchText, final Index index) {
1174             this.searchText = StringUtil.normalizeWhitespace(searchText);
1175             this.index = index;
1176         }
1177
1178         public String toString() {
1179             return String.format("SearchOperation(%s,%s)", searchText, interrupted.toString());
1180         }
1181
1182         @Override
1183         public void run() {
1184             try {
1185                 searchStartMillis = System.currentTimeMillis();
1186                 final String[] searchTokenArray = WHITESPACE.split(searchText);
1187                 if (searchTokenArray.length == 1) {
1188                     searchResult = index.findInsertionPoint(searchText, interrupted);
1189                 } else {
1190                     searchTokens = Arrays.asList(searchTokenArray);
1191                     multiWordSearchResult = index.multiWordSearch(searchText, searchTokens,
1192                             interrupted);
1193                 }
1194                 Log.d(LOG,
1195                         "searchText=" + searchText + ", searchDuration="
1196                                 + (System.currentTimeMillis() - searchStartMillis)
1197                                 + ", interrupted=" + interrupted.get());
1198                 if (!interrupted.get()) {
1199                     uiHandler.post(new Runnable() {
1200                         @Override
1201                         public void run() {
1202                             searchFinished(SearchOperation.this);
1203                         }
1204                     });
1205                 } else {
1206                     Log.d(LOG, "interrupted, skipping searchFinished.");
1207                 }
1208             } catch (Exception e) {
1209                 Log.e(LOG, "Failure during search (can happen during Activity close.");
1210             } finally {
1211                 synchronized (this) {
1212                     done = true;
1213                     this.notifyAll();
1214                 }
1215             }
1216         }
1217     }
1218
1219     // --------------------------------------------------------------------------
1220     // IndexAdapter
1221     // --------------------------------------------------------------------------
1222
1223     static ViewGroup.LayoutParams WEIGHT_1 = new LinearLayout.LayoutParams(
1224             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 1.0f);
1225
1226     static ViewGroup.LayoutParams WEIGHT_0 = new LinearLayout.LayoutParams(
1227             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 0.0f);
1228
1229     final class IndexAdapter extends BaseAdapter {
1230
1231         private static final float PADDING_DEFAULT_DP = 8;
1232
1233         private static final float PADDING_LARGE_DP = 16;
1234
1235         final Index index;
1236
1237         final List<RowBase> rows;
1238
1239         final Set<String> toHighlight;
1240
1241         private int mPaddingDefault;
1242
1243         private int mPaddingLarge;
1244
1245         IndexAdapter(final Index index) {
1246             this.index = index;
1247             rows = index.rows;
1248             this.toHighlight = null;
1249             getMetrics();
1250         }
1251
1252         IndexAdapter(final Index index, final List<RowBase> rows, final List<String> toHighlight) {
1253             this.index = index;
1254             this.rows = rows;
1255             this.toHighlight = new LinkedHashSet<String>(toHighlight);
1256             getMetrics();
1257         }
1258
1259         private void getMetrics() {
1260             // Get the screen's density scale
1261             final float scale = getResources().getDisplayMetrics().density;
1262             // Convert the dps to pixels, based on density scale
1263             mPaddingDefault = (int) (PADDING_DEFAULT_DP * scale + 0.5f);
1264             mPaddingLarge = (int) (PADDING_LARGE_DP * scale + 0.5f);
1265         }
1266
1267         @Override
1268         public int getCount() {
1269             return rows.size();
1270         }
1271
1272         @Override
1273         public RowBase getItem(int position) {
1274             return rows.get(position);
1275         }
1276
1277         @Override
1278         public long getItemId(int position) {
1279             return getItem(position).index();
1280         }
1281
1282         @Override
1283         public TableLayout getView(int position, View convertView, ViewGroup parent) {
1284             final TableLayout result;
1285             if (convertView instanceof TableLayout) {
1286                 result = (TableLayout) convertView;
1287                 result.removeAllViews();
1288             } else {
1289                 result = new TableLayout(parent.getContext());
1290             }
1291             final RowBase row = getItem(position);
1292             if (row instanceof PairEntry.Row) {
1293                 return getView(position, (PairEntry.Row) row, parent, result);
1294             } else if (row instanceof TokenRow) {
1295                 return getView((TokenRow) row, parent, result);
1296             } else if (row instanceof HtmlEntry.Row) {
1297                 return getView((HtmlEntry.Row) row, parent, result);
1298             } else {
1299                 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
1300             }
1301         }
1302
1303         private TableLayout getView(final int position, PairEntry.Row row, ViewGroup parent,
1304                 final TableLayout result) {
1305             final PairEntry entry = row.getEntry();
1306             final int rowCount = entry.pairs.size();
1307
1308             final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams();
1309             layoutParams.weight = 0.5f;
1310             layoutParams.leftMargin = mPaddingLarge;
1311
1312             for (int r = 0; r < rowCount; ++r) {
1313                 final TableRow tableRow = new TableRow(result.getContext());
1314
1315                 final TextView col1 = new TextView(tableRow.getContext());
1316                 final TextView col2 = new TextView(tableRow.getContext());
1317
1318                 // Set the columns in the table.
1319                 if (r > 0) {
1320                     final TextView bullet = new TextView(tableRow.getContext());
1321                     bullet.setText(" • ");
1322                     tableRow.addView(bullet);
1323                 }
1324                 tableRow.addView(col1, layoutParams);
1325                 final TextView margin = new TextView(tableRow.getContext());
1326                 margin.setText(" ");
1327                 tableRow.addView(margin);
1328                 if (r > 0) {
1329                     final TextView bullet = new TextView(tableRow.getContext());
1330                     bullet.setText(" • ");
1331                     tableRow.addView(bullet);
1332                 }
1333                 tableRow.addView(col2, layoutParams);
1334                 col1.setWidth(1);
1335                 col2.setWidth(1);
1336
1337                 // Set what's in the columns.
1338
1339                 final Pair pair = entry.pairs.get(r);
1340                 final String col1Text = index.swapPairEntries ? pair.lang2 : pair.lang1;
1341                 final String col2Text = index.swapPairEntries ? pair.lang1 : pair.lang2;
1342
1343                 col1.setText(col1Text, TextView.BufferType.SPANNABLE);
1344                 col2.setText(col2Text, TextView.BufferType.SPANNABLE);
1345
1346                 // Bold the token instances in col1.
1347                 final Set<String> toBold = toHighlight != null ? this.toHighlight : Collections
1348                         .singleton(row.getTokenRow(true).getToken());
1349                 final Spannable col1Spannable = (Spannable) col1.getText();
1350                 for (final String token : toBold) {
1351                     int startPos = 0;
1352                     while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
1353                         col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos, startPos
1354                                 + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1355                         startPos += token.length();
1356                     }
1357                 }
1358
1359                 createTokenLinkSpans(col1, col1Spannable, col1Text);
1360                 createTokenLinkSpans(col2, (Spannable) col2.getText(), col2Text);
1361
1362                 col1.setTypeface(typeface);
1363                 col2.setTypeface(typeface);
1364                 col1.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1365                 col2.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1366                 // col2.setBackgroundResource(theme.otherLangBg);
1367
1368                 if (index.swapPairEntries) {
1369                     col2.setOnLongClickListener(textViewLongClickListenerIndex0);
1370                     col1.setOnLongClickListener(textViewLongClickListenerIndex1);
1371                 } else {
1372                     col1.setOnLongClickListener(textViewLongClickListenerIndex0);
1373                     col2.setOnLongClickListener(textViewLongClickListenerIndex1);
1374                 }
1375
1376                 result.addView(tableRow);
1377             }
1378
1379             // Because we have a Button inside a ListView row:
1380             // http://groups.google.com/group/android-developers/browse_thread/thread/3d96af1530a7d62a?pli=1
1381             result.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
1382             result.setClickable(true);
1383             result.setFocusable(true);
1384             result.setLongClickable(true);
1385 //            result.setBackgroundResource(android.R.drawable.menuitem_background);
1386
1387             result.setBackgroundResource(theme.normalRowBg);
1388
1389             result.setOnClickListener(new TextView.OnClickListener() {
1390                 @Override
1391                 public void onClick(View v) {
1392                     DictionaryActivity.this.onListItemClick(getListView(), v, position, position);
1393                 }
1394             });
1395
1396             return result;
1397         }
1398
1399         private TableLayout getPossibleLinkToHtmlEntryView(final boolean isTokenRow,
1400                 final String text, final boolean hasMainEntry, final List<HtmlEntry> htmlEntries,
1401                 final String htmlTextToHighlight, ViewGroup parent, final TableLayout result) {
1402             final Context context = parent.getContext();
1403
1404             final TableRow tableRow = new TableRow(result.getContext());
1405             tableRow.setBackgroundResource(hasMainEntry ? theme.tokenRowMainBg
1406                     : theme.tokenRowOtherBg);
1407             if (isTokenRow) {
1408                 tableRow.setPadding(mPaddingDefault, mPaddingDefault, mPaddingDefault, 0);
1409             } else {
1410                 tableRow.setPadding(mPaddingLarge, mPaddingDefault, mPaddingDefault, 0);
1411             }
1412             result.addView(tableRow);
1413
1414             // Make it so we can long-click on these token rows, too:
1415             final TextView textView = new TextView(context);
1416             textView.setText(text, BufferType.SPANNABLE);
1417             createTokenLinkSpans(textView, (Spannable) textView.getText(), text);
1418             final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1419                     0);
1420             textView.setOnLongClickListener(textViewLongClickListenerIndex0);
1421             result.setLongClickable(true);
1422
1423             // Doesn't work:
1424             // textView.setTextColor(android.R.color.secondary_text_light);
1425             textView.setTypeface(typeface);
1426             TableRow.LayoutParams lp = new TableRow.LayoutParams(0);
1427             if (isTokenRow) {
1428                 textView.setTextAppearance(context, theme.tokenRowFg);
1429                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 4 * fontSizeSp / 3);
1430             } else {
1431                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1432             }
1433             lp.weight = 1.0f;
1434
1435             textView.setLayoutParams(lp);
1436             tableRow.addView(textView);
1437
1438             if (!htmlEntries.isEmpty()) {
1439                 final ClickableSpan clickableSpan = new ClickableSpan() {
1440                     @Override
1441                     public void onClick(View widget) {
1442                     }
1443                 };
1444                 ((Spannable) textView.getText()).setSpan(clickableSpan, 0, text.length(),
1445                         Spannable.SPAN_INCLUSIVE_INCLUSIVE);
1446                 result.setClickable(true);
1447                 textView.setClickable(true);
1448                 textView.setMovementMethod(LinkMovementMethod.getInstance());
1449                 textView.setOnClickListener(new OnClickListener() {
1450                     @Override
1451                     public void onClick(View v) {
1452                         String html = HtmlEntry.htmlBody(htmlEntries, index.shortName);
1453                         // Log.d(LOG, "html=" + html);
1454                         startActivityForResult(
1455                                 HtmlDisplayActivity.getHtmlIntent(String.format(
1456                                         "<html><head></head><body>%s</body></html>", html),
1457                                         htmlTextToHighlight, false),
1458                                 0);
1459                     }
1460                 });
1461             }
1462             return result;
1463         }
1464
1465         private TableLayout getView(TokenRow row, ViewGroup parent, final TableLayout result) {
1466             final IndexEntry indexEntry = row.getIndexEntry();
1467             return getPossibleLinkToHtmlEntryView(true, indexEntry.token, row.hasMainEntry,
1468                     indexEntry.htmlEntries, null, parent, result);
1469         }
1470
1471         private TableLayout getView(HtmlEntry.Row row, ViewGroup parent, final TableLayout result) {
1472             final HtmlEntry htmlEntry = row.getEntry();
1473             final TokenRow tokenRow = row.getTokenRow(true);
1474             return getPossibleLinkToHtmlEntryView(false,
1475                     getString(R.string.seeAlso, htmlEntry.title, htmlEntry.entrySource.getName()),
1476                     false, Collections.singletonList(htmlEntry), tokenRow.getToken(), parent,
1477                     result);
1478         }
1479
1480     }
1481
1482     static final Pattern CHAR_DASH = Pattern.compile("['\\p{L}\\p{M}\\p{N}]+");
1483
1484     private void createTokenLinkSpans(final TextView textView, final Spannable spannable,
1485             final String text) {
1486         // Saw from the source code that LinkMovementMethod sets the selection!
1487         // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.3.1_r1/android/text/method/LinkMovementMethod.java#LinkMovementMethod
1488         textView.setMovementMethod(LinkMovementMethod.getInstance());
1489         final Matcher matcher = CHAR_DASH.matcher(text);
1490         while (matcher.find()) {
1491             spannable.setSpan(new NonLinkClickableSpan(textColorFg), matcher.start(),
1492                     matcher.end(),
1493                     Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1494         }
1495     }
1496
1497     String selectedSpannableText = null;
1498
1499     int selectedSpannableIndex = -1;
1500
1501     @Override
1502     public boolean onTouchEvent(MotionEvent event) {
1503         selectedSpannableText = null;
1504         selectedSpannableIndex = -1;
1505         return super.onTouchEvent(event);
1506     }
1507
1508     private class TextViewLongClickListener implements OnLongClickListener {
1509         final int index;
1510
1511         private TextViewLongClickListener(final int index) {
1512             this.index = index;
1513         }
1514
1515         @Override
1516         public boolean onLongClick(final View v) {
1517             final TextView textView = (TextView) v;
1518             final int start = textView.getSelectionStart();
1519             final int end = textView.getSelectionEnd();
1520             if (start >= 0 && end >= 0) {
1521                 selectedSpannableText = textView.getText().subSequence(start, end).toString();
1522                 selectedSpannableIndex = index;
1523             }
1524             return false;
1525         }
1526     }
1527
1528     final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1529             0);
1530
1531     final TextViewLongClickListener textViewLongClickListenerIndex1 = new TextViewLongClickListener(
1532             1);
1533
1534     // --------------------------------------------------------------------------
1535     // SearchText
1536     // --------------------------------------------------------------------------
1537
1538     void onSearchTextChange(final String text) {
1539         if ("thadolina".equals(text)) {
1540             final Dialog dialog = new Dialog(getListView().getContext());
1541             dialog.setContentView(R.layout.thadolina_dialog);
1542             dialog.setTitle("Ti amo, amore mio!");
1543             final ImageView imageView = (ImageView) dialog.findViewById(R.id.thadolina_image);
1544             imageView.setOnClickListener(new OnClickListener() {
1545                 @Override
1546                 public void onClick(View v) {
1547                     final Intent intent = new Intent(Intent.ACTION_VIEW);
1548                     intent.setData(Uri.parse("https://sites.google.com/site/cfoxroxvday/vday2012"));
1549                     startActivity(intent);
1550                 }
1551             });
1552             dialog.show();
1553         }
1554         if (dictRaf == null) {
1555             Log.d(LOG, "searchText changed during shutdown, doing nothing.");
1556             return;
1557         }
1558         // if (!searchView.hasFocus()) {
1559         // Log.d(LOG, "searchText changed without focus, doing nothing.");
1560         // return;
1561         // }
1562         Log.d(LOG, "onSearchTextChange: " + text);
1563         if (currentSearchOperation != null) {
1564             Log.d(LOG, "Interrupting currentSearchOperation.");
1565             currentSearchOperation.interrupted.set(true);
1566         }
1567         currentSearchOperation = new SearchOperation(text, index);
1568         searchExecutor.execute(currentSearchOperation);
1569     }
1570
1571     // --------------------------------------------------------------------------
1572     // Filtered results.
1573     // --------------------------------------------------------------------------
1574
1575     boolean isFiltered() {
1576         return rowsToShow != null;
1577     }
1578
1579     void setFiltered(final SearchOperation searchOperation) {
1580         if (nextWordMenuItem != null) {
1581             nextWordMenuItem.setEnabled(false);
1582             previousWordMenuItem.setEnabled(false);
1583         }
1584         rowsToShow = searchOperation.multiWordSearchResult;
1585         setListAdapter(new IndexAdapter(index, rowsToShow, searchOperation.searchTokens));
1586     }
1587
1588     void clearFiltered() {
1589         if (nextWordMenuItem != null) {
1590             nextWordMenuItem.setEnabled(true);
1591             previousWordMenuItem.setEnabled(true);
1592         }
1593         setListAdapter(new IndexAdapter(index));
1594         rowsToShow = null;
1595     }
1596
1597 }