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.support.v4.view.MenuItemCompat;
  32 import android.support.v7.app.ActionBar;
  33 import android.support.v7.app.ActionBarActivity;
  34 import android.support.v7.widget.SearchView;
  35 import android.support.v7.widget.SearchView.OnQueryTextListener;
  36 import android.support.v7.widget.Toolbar;
  37 import android.text.ClipboardManager;
  38 import android.text.InputType;
  39 import android.text.Spannable;
  40 import android.text.method.LinkMovementMethod;
  41 import android.text.style.ClickableSpan;
  42 import android.text.style.StyleSpan;
  43 import android.util.Log;
  44 import android.util.TypedValue;
  45 import android.view.ContextMenu;
  46 import android.view.ContextMenu.ContextMenuInfo;
  47 import android.view.Gravity;
  48 import android.view.KeyEvent;
  49 import android.view.Menu;
  50 import android.view.MenuItem;
  51 import android.view.MenuItem.OnMenuItemClickListener;
  52 import android.view.MotionEvent;
  53 import android.view.View;
  54 import android.view.View.OnClickListener;
  55 import android.view.View.OnLongClickListener;
  56 import android.view.ViewGroup;
  57 import android.view.WindowManager;
  58 import android.view.inputmethod.EditorInfo;
  59 import android.view.inputmethod.InputMethodManager;
  60 import android.widget.AdapterView;
  61 import android.widget.AdapterView.AdapterContextMenuInfo;
  62 import android.widget.AdapterView.OnItemClickListener;
  63 import android.widget.BaseAdapter;
  64 import android.widget.Button;
  65 import android.widget.FrameLayout;
  66 import android.widget.ImageButton;
  67 import android.widget.ImageView;
  68 import android.widget.ImageView.ScaleType;
  69 import android.widget.LinearLayout;
  70 import android.widget.ListAdapter;
  71 import android.widget.ListView;
  72 import android.widget.TableLayout;
  73 import android.widget.TableRow;
  74 import android.widget.TextView;
  75 import android.widget.TextView.BufferType;
  76 import android.widget.Toast;
  77
  78 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  79 import com.hughes.android.dictionary.engine.Dictionary;
  80 import com.hughes.android.dictionary.engine.EntrySource;
  81 import com.hughes.android.dictionary.engine.HtmlEntry;
  82 import com.hughes.android.dictionary.engine.Index;
  83 import com.hughes.android.dictionary.engine.Index.IndexEntry;
  84 import com.hughes.android.dictionary.engine.Language.LanguageResources;
  85 import com.hughes.android.dictionary.engine.PairEntry;
  86 import com.hughes.android.dictionary.engine.PairEntry.Pair;
  87 import com.hughes.android.dictionary.engine.RowBase;
  88 import com.hughes.android.dictionary.engine.TokenRow;
  89 import com.hughes.android.dictionary.engine.TransliteratorManager;
  90 import com.hughes.android.util.IntentLauncher;
  91 import com.hughes.android.util.NonLinkClickableSpan;
  92 import com.hughes.util.StringUtil;
  93
  94 import java.io.File;
  95 import java.io.FileWriter;
  96 import java.io.IOException;
  97 import java.io.PrintWriter;
  98 import java.io.RandomAccessFile;
  99 import java.text.SimpleDateFormat;
 100 import java.util.Arrays;
 101 import java.util.Collections;
 102 import java.util.Date;
 103 import java.util.HashMap;
 104 import java.util.LinkedHashSet;
 105 import java.util.List;
 106 import java.util.Locale;
 107 import java.util.Random;
 108 import java.util.Set;
 109 import java.util.concurrent.Executor;
 110 import java.util.concurrent.Executors;
 111 import java.util.concurrent.ThreadFactory;
 112 import java.util.concurrent.atomic.AtomicBoolean;
 113 import java.util.regex.Matcher;
 114 import java.util.regex.Pattern;
 115
 116 public class DictionaryActivity extends ActionBarActivity {
 117
 118     static final String LOG = "QuickDic";
 119
 120     DictionaryApplication application;
 121
 122     File dictFile = null;
 123     RandomAccessFile dictRaf = null;
 124
 125     Dictionary dictionary = null;
 126
 127     int indexIndex = 0;
 128
 129     Index index = null;
 130
 131     List<RowBase> rowsToShow = null; // if not null, just show these rows.
 132
 133     final Random rand = new Random();
 134
 135     final Handler uiHandler = new Handler();
 136
 137     private final Executor searchExecutor = Executors.newSingleThreadExecutor(new ThreadFactory() {
 138         @Override
 139         public Thread newThread(Runnable r) {
 140             return new Thread(r, "searchExecutor");
 141         }
 142     });
 143
 144     private SearchOperation currentSearchOperation = null;
 145
 146     TextToSpeech textToSpeech;
 147     volatile boolean ttsReady;
 148
 149     Typeface typeface;
 150     DictionaryApplication.Theme theme = DictionaryApplication.Theme.LIGHT;
 151     int textColorFg = Color.BLACK;
 152     int fontSizeSp;
 153
 154     private ListView listView;
 155     private ListView getListView() {
 156         if (listView == null) {
 157             listView = (ListView)findViewById(android.R.id.list);
 158         }
 159         return listView;
 160     }
 161
 162     private void setListAdapter(ListAdapter adapter) {
 163         getListView().setAdapter(adapter);
 164     }
 165
 166     private ListAdapter getListAdapter() {
 167         return getListView().getAdapter();
 168     }
 169
 170     SearchView searchView;
 171     ImageButton languageButton;
 172     SearchView.OnQueryTextListener onQueryTextListener;
 173
 174     MenuItem nextWordMenuItem, previousWordMenuItem, randomWordMenuItem;
 175
 176     // Never null.
 177     private File wordList = null;
 178     private boolean saveOnlyFirstSubentry = false;
 179     private boolean clickOpensContextMenu = false;
 180
 181     // Visible for testing.
 182     ListAdapter indexAdapter = null;
 183
 184     /**
 185      * For some languages, loading the transliterators used in this search takes
 186      * a long time, so we fire it up on a different thread, and don't invoke it
 187      * from the main thread until it's already finished once.
 188      */
 189     private volatile boolean indexPrepFinished = false;
 190
 191     public DictionaryActivity() {
 192     }
 193
 194     public static Intent getLaunchIntent(Context c, final File dictFile, final String indexShortName,
 195             final String searchToken) {
 196         final Intent intent = new Intent(c, DictionaryActivity.class);
 197         intent.putExtra(C.DICT_FILE, dictFile.getPath());
 198         intent.putExtra(C.INDEX_SHORT_NAME, indexShortName);
 199         intent.putExtra(C.SEARCH_TOKEN, searchToken);
 200         return intent;
 201     }
 202
 203     @Override
 204     protected void onSaveInstanceState(final Bundle outState) {
 205         super.onSaveInstanceState(outState);
 206         Log.d(LOG, "onSaveInstanceState: " + searchView.getQuery().toString());
 207         outState.putString(C.INDEX_SHORT_NAME, index.shortName);
 208         outState.putString(C.SEARCH_TOKEN, searchView.getQuery().toString());
 209     }
 210
 211     @Override
 212     public void onCreate(Bundle savedInstanceState) {
 213         // This needs to be before super.onCreate, otherwise ActionbarSherlock
 214         // doesn't makes the background of the actionbar white when you're
 215         // in the dark theme.
 216         setTheme(((DictionaryApplication) getApplication()).getSelectedTheme().themeId);
 217
 218         Log.d(LOG, "onCreate:" + this);
 219         super.onCreate(savedInstanceState);
 220
 221         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 222
 223         // Don't auto-launch if this fails.
 224         prefs.edit().remove(C.DICT_FILE).commit();
 225
 226         setContentView(R.layout.dictionary_activity);
 227
 228         application = (DictionaryApplication) getApplication();
 229         theme = application.getSelectedTheme();
 230         textColorFg = getResources().getColor(theme.tokenRowFgColor);
 231
 232         final Intent intent = getIntent();
 233         String intentAction = intent.getAction();
 234         /**
 235          * @author Dominik Köppl Querying the Intent
 236          *         com.hughes.action.ACTION_SEARCH_DICT is the advanced query
 237          *         Arguments: SearchManager.QUERY -> the phrase to search from
 238          *         -> language in which the phrase is written to -> to which
 239          *         language shall be translated
 240          */
 241         if (intentAction != null && intentAction.equals("com.hughes.action.ACTION_SEARCH_DICT"))
 242         {
 243             String query = intent.getStringExtra(SearchManager.QUERY);
 244             String from = intent.getStringExtra("from");
 245             if (from != null)
 246                 from = from.toLowerCase(Locale.US);
 247             String to = intent.getStringExtra("to");
 248             if (to != null)
 249                 to = to.toLowerCase(Locale.US);
 250             if (query != null)
 251             {
 252                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 253             }
 254             if (intent.getStringExtra(C.DICT_FILE) == null && (from != null || to != null))
 255             {
 256                 Log.d(LOG, "DictSearch: from: " + from + " to " + to);
 257                 List<DictionaryInfo> dicts = application.getDictionariesOnDevice(null);
 258                 for (DictionaryInfo info : dicts)
 259                 {
 260                     boolean hasFrom = from == null;
 261                     boolean hasTo = to == null;
 262                     for (IndexInfo index : info.indexInfos)
 263                     {
 264                         if (!hasFrom && index.shortName.toLowerCase(Locale.US).equals(from))
 265                             hasFrom = true;
 266                         if (!hasTo && index.shortName.toLowerCase(Locale.US).equals(to))
 267                             hasTo = true;
 268                     }
 269                     if (hasFrom && hasTo)
 270                     {
 271                         if (from != null)
 272                         {
 273                             int which_index = 0;
 274                             for (; which_index < info.indexInfos.size(); ++which_index)
 275                             {
 276                                 if (info.indexInfos.get(which_index).shortName.toLowerCase(
 277                                         Locale.US).equals(from))
 278                                     break;
 279                             }
 280                             intent.putExtra(C.INDEX_SHORT_NAME,
 281                                     info.indexInfos.get(which_index).shortName);
 282
 283                         }
 284                         intent.putExtra(C.DICT_FILE, application.getPath(info.uncompressedFilename)
 285                                 .toString());
 286                         break;
 287                     }
 288                 }
 289
 290             }
 291         }
 292         /**
 293          * @author Dominik Köppl Querying the Intent Intent.ACTION_SEARCH is a
 294          *         simple query Arguments follow from android standard (see
 295          *         documentation)
 296          */
 297         if (intentAction != null && intentAction.equals(Intent.ACTION_SEARCH))
 298         {
 299             String query = intent.getStringExtra(SearchManager.QUERY);
 300             if (query != null)
 301                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 302         }
 303         /**
 304          * @author Dominik Köppl If no dictionary is chosen, use the default
 305          *         dictionary specified in the preferences If this step does
 306          *         fail (no default directory specified), show a toast and
 307          *         abort.
 308          */
 309         if (intent.getStringExtra(C.DICT_FILE) == null)
 310         {
 311             String dictfile = prefs.getString(getString(R.string.defaultDicKey), null);
 312             if (dictfile != null)
 313                 intent.putExtra(C.DICT_FILE, application.getPath(dictfile).toString());
 314         }
 315         String dictFilename = intent.getStringExtra(C.DICT_FILE);
 316
 317         if (dictFilename == null)
 318         {
 319             Toast.makeText(this, getString(R.string.no_dict_file), Toast.LENGTH_LONG).show();
 320             startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 321             finish();
 322             return;
 323         }
 324         if (dictFilename != null)
 325             dictFile = new File(dictFilename);
 326
 327         ttsReady = false;
 328         textToSpeech = new TextToSpeech(getApplicationContext(), new OnInitListener() {
 329             @Override
 330             public void onInit(int status) {
 331                 ttsReady = true;
 332                 updateTTSLanguage(indexIndex);
 333             }
 334         });
 335
 336         try {
 337             final String name = application.getDictionaryName(dictFile.getName());
 338             this.setTitle("QuickDic: " + name);
 339             dictRaf = new RandomAccessFile(dictFile, "r");
 340             dictionary = new Dictionary(dictRaf);
 341         } catch (Exception e) {
 342             Log.e(LOG, "Unable to load dictionary.", e);
 343             if (dictRaf != null) {
 344                 try {
 345                     dictRaf.close();
 346                 } catch (IOException e1) {
 347                     Log.e(LOG, "Unable to close dictRaf.", e1);
 348                 }
 349                 dictRaf = null;
 350             }
 351             Toast.makeText(this, getString(R.string.invalidDictionary, "", e.getMessage()),
 352                     Toast.LENGTH_LONG).show();
 353             startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 354             finish();
 355             return;
 356         }
 357         String targetIndex = intent.getStringExtra(C.INDEX_SHORT_NAME);
 358         if (savedInstanceState != null && savedInstanceState.getString(C.INDEX_SHORT_NAME) != null) {
 359             targetIndex = savedInstanceState.getString(C.INDEX_SHORT_NAME);
 360         }
 361         indexIndex = 0;
 362         for (int i = 0; i < dictionary.indices.size(); ++i) {
 363             if (dictionary.indices.get(i).shortName.equals(targetIndex)) {
 364                 indexIndex = i;
 365                 break;
 366             }
 367         }
 368         Log.d(LOG, "Loading index " + indexIndex);
 369         index = dictionary.indices.get(indexIndex);
 370         setListAdapter(new IndexAdapter(index));
 371
 372         // Pre-load the collators.
 373         new Thread(new Runnable() {
 374             public void run() {
 375                 android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_BACKGROUND);
 376                 final long startMillis = System.currentTimeMillis();
 377                 try {
 378                     TransliteratorManager.init(new TransliteratorManager.Callback() {
 379                         @Override
 380                         public void onTransliteratorReady() {
 381                             uiHandler.post(new Runnable() {
 382                                 @Override
 383                                 public void run() {
 384                                     onSearchTextChange(searchView.getQuery().toString());
 385                                 }
 386                             });
 387                         }
 388                     });
 389
 390                     for (final Index index : dictionary.indices) {
 391                         final String searchToken = index.sortedIndexEntries.get(0).token;
 392                         final IndexEntry entry = index.findExact(searchToken);
 393                         if (entry == null || !searchToken.equals(entry.token)) {
 394                             Log.e(LOG, "Couldn't find token: " + searchToken + ", " + (entry == null ? "null" : entry.token));
 395                         }
 396                     }
 397                     indexPrepFinished = true;
 398                 } catch (Exception e) {
 399                     Log.w(LOG,
 400                             "Exception while prepping.  This can happen if dictionary is closed while search is happening.");
 401                 }
 402                 Log.d(LOG, "Prepping indices took:" + (System.currentTimeMillis() - startMillis));
 403             }
 404         }).start();
 405
 406         String fontName = prefs.getString(getString(R.string.fontKey), "FreeSerif.otf.jpg");
 407         if ("SYSTEM".equals(fontName)) {
 408             typeface = Typeface.DEFAULT;
 409         } else if ("SERIF".equals(fontName)) {
 410             typeface = Typeface.SERIF;
 411         } else if ("SANS_SERIF".equals(fontName)) {
 412             typeface = Typeface.SANS_SERIF;
 413         } else if ("MONOSPACE".equals(fontName)) {
 414             typeface = Typeface.MONOSPACE;
 415         } else {
 416             if ("FreeSerif.ttf.jpg".equals(fontName)) {
 417                 fontName = "FreeSerif.otf.jpg";
 418             }
 419             try {
 420                 typeface = Typeface.createFromAsset(getAssets(), fontName);
 421             } catch (Exception e) {
 422                 Log.w(LOG, "Exception trying to use typeface, using default.", e);
 423                 Toast.makeText(this, getString(R.string.fontFailure, e.getLocalizedMessage()),
 424                         Toast.LENGTH_LONG).show();
 425             }
 426         }
 427         if (typeface == null) {
 428             Log.w(LOG, "Unable to create typeface, using default.");
 429             typeface = Typeface.DEFAULT;
 430         }
 431         final String fontSize = prefs.getString(getString(R.string.fontSizeKey), "14");
 432         try {
 433             fontSizeSp = Integer.parseInt(fontSize.trim());
 434         } catch (NumberFormatException e) {
 435             fontSizeSp = 14;
 436         }
 437
 438         // ContextMenu.
 439         registerForContextMenu(getListView());
 440
 441         // Cache some prefs.
 442         wordList = application.getWordListFile();
 443         saveOnlyFirstSubentry = prefs.getBoolean(getString(R.string.saveOnlyFirstSubentryKey),
 444                 false);
 445         clickOpensContextMenu = prefs.getBoolean(getString(R.string.clickOpensContextMenuKey),
 446                 false);
 447         Log.d(LOG, "wordList=" + wordList + ", saveOnlyFirstSubentry=" + saveOnlyFirstSubentry);
 448
 449         onCreateSetupActionBarAndSearchView();
 450
 451         // Set the search text from the intent, then the saved state.
 452         String text = getIntent().getStringExtra(C.SEARCH_TOKEN);
 453         if (savedInstanceState != null) {
 454             text = savedInstanceState.getString(C.SEARCH_TOKEN);
 455         }
 456         if (text == null) {
 457             text = "";
 458         }
 459         setSearchText(text, true);
 460         Log.d(LOG, "Trying to restore searchText=" + text);
 461
 462         setDictionaryPrefs(this, dictFile, index.shortName, searchView.getQuery().toString());
 463
 464         updateLangButton();
 465         searchView.requestFocus();
 466
 467         // http://stackoverflow.com/questions/2833057/background-listview-becomes-black-when-scrolling
 468 //        getListView().setCacheColorHint(0);
 469     }
 470
 471     private void onCreateSetupActionBarAndSearchView() {
 472         ActionBar actionBar = getSupportActionBar();
 473         actionBar.setDisplayShowTitleEnabled(false);
 474         actionBar.setDisplayShowHomeEnabled(false);
 475         actionBar.setDisplayHomeAsUpEnabled(false);
 476
 477         final LinearLayout customSearchView = new LinearLayout(getSupportActionBar().getThemedContext());
 478
 479         final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 480                 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 481         customSearchView.setLayoutParams(layoutParams);
 482
 483         listView.setOnItemClickListener(new OnItemClickListener() {
 484             @Override
 485             public void onItemClick(AdapterView<?> parent, View view, int row, long id) {
 486                 onListItemClick(getListView(), view, row, id);
 487             }
 488         });
 489
 490         languageButton = new ImageButton(customSearchView.getContext());
 491         languageButton.setScaleType(ScaleType.FIT_CENTER);
 492         languageButton.setOnClickListener(new OnClickListener() {
 493             @Override
 494             public void onClick(View arg0) {
 495                 onLanguageButtonClick();
 496             }
 497         });
 498         languageButton.setOnLongClickListener(new OnLongClickListener() {
 499             @Override
 500             public boolean onLongClick(View v) {
 501                 onLanguageButtonLongClick(v.getContext());
 502                 return true;
 503             }
 504         });
 505         languageButton.setAdjustViewBounds(true);
 506         LinearLayout.LayoutParams lpb = new LinearLayout.LayoutParams(application.languageButtonPixels, LinearLayout.LayoutParams.MATCH_PARENT);
 507         customSearchView.addView(languageButton, lpb);
 508
 509         searchView = new SearchView(getSupportActionBar().getThemedContext());
 510
 511         // Get rid of search icon, it takes up too much space.
 512         // There is still text saying "search" in the search field.
 513         searchView.setIconifiedByDefault(true);
 514         searchView.setIconified(false);
 515
 516         searchView.setQueryHint(getString(R.string.searchText));
 517         searchView.setSubmitButtonEnabled(false);
 518         searchView.setInputType(InputType.TYPE_CLASS_TEXT);
 519         searchView.setImeOptions(
 520                 EditorInfo.IME_ACTION_DONE |
 521                         EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 522                         // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 523                         // 11
 524                         EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 525         onQueryTextListener = new OnQueryTextListener() {
 526             @Override
 527             public boolean onQueryTextSubmit(String query) {
 528                 Log.d(LOG, "OnQueryTextListener: onQueryTextSubmit: " + searchView.getQuery());
 529                 hideKeyboard();
 530                 return true;
 531             }
 532
 533             @Override
 534             public boolean onQueryTextChange(String newText) {
 535                 Log.d(LOG, "OnQueryTextListener: onQueryTextChange: " + searchView.getQuery());
 536                 onSearchTextChange(searchView.getQuery().toString());
 537                 return true;
 538             }
 539         };
 540         searchView.setOnQueryTextListener(onQueryTextListener);
 541         searchView.setFocusable(true);
 542         LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(0,
 543                 FrameLayout.LayoutParams.WRAP_CONTENT, 1);
 544         customSearchView.addView(searchView, lp);
 545
 546         actionBar.setCustomView(customSearchView);
 547         actionBar.setDisplayShowCustomEnabled(true);
 548
 549         // Avoid wasting space on large left inset
 550         Toolbar tb = (Toolbar)customSearchView.getParent();
 551         tb.setContentInsetsRelative(0, 0);
 552     }
 553
 554     @Override
 555     protected void onResume() {
 556         Log.d(LOG, "onResume");
 557         super.onResume();
 558         if (PreferenceActivity.prefsMightHaveChanged) {
 559             PreferenceActivity.prefsMightHaveChanged = false;
 560             finish();
 561             startActivity(getIntent());
 562         }
 563         showKeyboard();
 564     }
 565
 566     @Override
 567     protected void onPause() {
 568         super.onPause();
 569     }
 570
 571     @Override
 572     /**
 573      * Invoked when MyWebView returns, since the user might have clicked some
 574      * hypertext in the MyWebView.
 575      */
 576     protected void onActivityResult(int requestCode, int resultCode, Intent result) {
 577         super.onActivityResult(requestCode, resultCode, result);
 578         if (result != null && result.hasExtra(C.SEARCH_TOKEN)) {
 579             Log.d(LOG, "onActivityResult: " + result.getStringExtra(C.SEARCH_TOKEN));
 580             jumpToTextFromHyperLink(result.getStringExtra(C.SEARCH_TOKEN), indexIndex);
 581         }
 582     }
 583
 584     private static void setDictionaryPrefs(final Context context, final File dictFile,
 585             final String indexShortName, final String searchToken) {
 586         final SharedPreferences.Editor prefs = PreferenceManager.getDefaultSharedPreferences(
 587                 context).edit();
 588         prefs.putString(C.DICT_FILE, dictFile.getPath());
 589         prefs.putString(C.INDEX_SHORT_NAME, indexShortName);
 590         prefs.putString(C.SEARCH_TOKEN, ""); // Don't need to save search token.
 591         prefs.commit();
 592     }
 593
 594     @Override
 595     protected void onDestroy() {
 596         super.onDestroy();
 597         if (dictRaf == null) {
 598             return;
 599         }
 600
 601         final SearchOperation searchOperation = currentSearchOperation;
 602         currentSearchOperation = null;
 603
 604         // Before we close the RAF, we have to wind the current search down.
 605         if (searchOperation != null) {
 606             Log.d(LOG, "Interrupting search to shut down.");
 607             currentSearchOperation = null;
 608             searchOperation.interrupted.set(true);
 609         }
 610
 611         try {
 612             Log.d(LOG, "Closing RAF.");
 613             dictRaf.close();
 614         } catch (IOException e) {
 615             Log.e(LOG, "Failed to close dictionary", e);
 616         }
 617         dictRaf = null;
 618     }
 619
 620     // --------------------------------------------------------------------------
 621     // Buttons
 622     // --------------------------------------------------------------------------
 623
 624     private void showKeyboard() {
 625         // For some reason, this doesn't always work the first time.
 626         // One way to replicate the problem:
 627         // Press the "task switch" button repeatedly to pause and resume
 628         for (int delay = 1; delay <= 101; delay += 100) {
 629             searchView.postDelayed(new Runnable() {
 630                 @Override
 631                 public void run() {
 632                     Log.d(LOG, "Trying to show soft keyboard.");
 633                     final boolean searchTextHadFocus = searchView.hasFocus();
 634                     searchView.requestFocusFromTouch();
 635                     final InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 636                     manager.showSoftInput(searchView, InputMethodManager.SHOW_IMPLICIT);
 637                     if (!searchTextHadFocus) {
 638                         defocusSearchText();
 639                     }
 640                 }
 641             }, delay);
 642         }
 643     }
 644
 645     private void hideKeyboard() {
 646         Log.d(LOG, "Hide soft keyboard.");
 647         searchView.clearFocus();
 648         InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 649         manager.hideSoftInputFromWindow(searchView.getWindowToken(), 0);
 650     }
 651
 652     void updateLangButton() {
 653         final LanguageResources languageResources =
 654                 DictionaryApplication.isoCodeToResources.get(index.shortName);
 655         if (languageResources != null && languageResources.flagId != 0) {
 656             languageButton.setImageResource(languageResources.flagId);
 657         } else {
 658             if (indexIndex % 2 == 0) {
 659                 languageButton.setImageResource(android.R.drawable.ic_media_next);
 660             } else {
 661                 languageButton.setImageResource(android.R.drawable.ic_media_previous);
 662             }
 663         }
 664         updateTTSLanguage(indexIndex);
 665     }
 666
 667     private void updateTTSLanguage(int i) {
 668         if (!ttsReady || index == null || textToSpeech == null) {
 669             Log.d(LOG, "Can't updateTTSLanguage.");
 670             return;
 671         }
 672         final Locale locale = new Locale(dictionary.indices.get(i).sortLanguage.getIsoCode());
 673         Log.d(LOG, "Setting TTS locale to: " + locale);
 674         try {
 675         final int ttsResult = textToSpeech.setLanguage(locale);
 676         if (ttsResult != TextToSpeech.LANG_AVAILABLE &&
 677                 ttsResult != TextToSpeech.LANG_COUNTRY_AVAILABLE) {
 678             Log.e(LOG, "TTS not available in this language: ttsResult=" + ttsResult);
 679         }
 680         } catch (Exception e) {
 681             Toast.makeText(this, getString(R.string.TTSbroken), Toast.LENGTH_LONG).show();
 682         }
 683     }
 684
 685     void onLanguageButtonClick() {
 686         if (dictionary.indices.size() == 1) {
 687             // No need to work to switch indices.
 688             return;
 689         }
 690         if (currentSearchOperation != null) {
 691             currentSearchOperation.interrupted.set(true);
 692             currentSearchOperation = null;
 693         }
 694         setIndexAndSearchText((indexIndex + 1) % dictionary.indices.size(),
 695                 searchView.getQuery().toString(), false);
 696     }
 697
 698     void onLanguageButtonLongClick(final Context context) {
 699         final Dialog dialog = new Dialog(context);
 700         dialog.setContentView(R.layout.select_dictionary_dialog);
 701         dialog.setTitle(R.string.selectDictionary);
 702
 703         final List<DictionaryInfo> installedDicts = application.getDictionariesOnDevice(null);
 704
 705         ListView listView = (ListView) dialog.findViewById(android.R.id.list);
 706         final Button button = new Button(listView.getContext());
 707         final String name = getString(R.string.dictionaryManager);
 708         button.setText(name);
 709         final IntentLauncher intentLauncher = new IntentLauncher(listView.getContext(),
 710                 DictionaryManagerActivity.getLaunchIntent(getApplicationContext())) {
 711             @Override
 712             protected void onGo() {
 713                 dialog.dismiss();
 714                 DictionaryActivity.this.finish();
 715             }
 716         };
 717         button.setOnClickListener(intentLauncher);
 718         listView.addHeaderView(button);
 719
 720         listView.setAdapter(new BaseAdapter() {
 721             @Override
 722             public View getView(int position, View convertView, ViewGroup parent) {
 723                 final DictionaryInfo dictionaryInfo = getItem(position);
 724
 725                 final LinearLayout result = new LinearLayout(parent.getContext());
 726
 727                 for (int i = 0; i < dictionaryInfo.indexInfos.size(); ++i) {
 728                     final IndexInfo indexInfo = dictionaryInfo.indexInfos.get(i);
 729                     final View button = application.createButton(parent.getContext(),
 730                             dictionaryInfo, indexInfo);
 731                     final IntentLauncher intentLauncher = new IntentLauncher(parent.getContext(),
 732                             getLaunchIntent(getApplicationContext(),
 733                                     application.getPath(dictionaryInfo.uncompressedFilename),
 734                                     indexInfo.shortName, searchView.getQuery().toString())) {
 735                         @Override
 736                         protected void onGo() {
 737                             dialog.dismiss();
 738                             DictionaryActivity.this.finish();
 739                         }
 740                     };
 741                     button.setOnClickListener(intentLauncher);
 742                     if (i == indexIndex && dictFile != null &&
 743                         dictFile.getName().equals(dictionaryInfo.uncompressedFilename)) {
 744                         button.setPressed(true);
 745                     }
 746                     result.addView(button);
 747                 }
 748
 749                 final TextView nameView = new TextView(parent.getContext());
 750                 final String name = application
 751                         .getDictionaryName(dictionaryInfo.uncompressedFilename);
 752                 nameView.setText(name);
 753                 final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 754                         ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 755                 layoutParams.width = 0;
 756                 layoutParams.weight = 1.0f;
 757                 nameView.setLayoutParams(layoutParams);
 758                 nameView.setGravity(Gravity.CENTER_VERTICAL);
 759                 result.addView(nameView);
 760                 return result;
 761             }
 762
 763             @Override
 764             public long getItemId(int position) {
 765                 return position;
 766             }
 767
 768             @Override
 769             public DictionaryInfo getItem(int position) {
 770                 return installedDicts.get(position);
 771             }
 772
 773             @Override
 774             public int getCount() {
 775                 return installedDicts.size();
 776             }
 777         });
 778         dialog.show();
 779     }
 780
 781     void onUpDownButton(final boolean up) {
 782         if (isFiltered()) {
 783             return;
 784         }
 785         final int firstVisibleRow = getListView().getFirstVisiblePosition();
 786         final RowBase row = index.rows.get(firstVisibleRow);
 787         final TokenRow tokenRow = row.getTokenRow(true);
 788         final int destIndexEntry;
 789         if (up) {
 790             if (row != tokenRow) {
 791                 destIndexEntry = tokenRow.referenceIndex;
 792             } else {
 793                 destIndexEntry = Math.max(tokenRow.referenceIndex - 1, 0);
 794             }
 795         } else {
 796             // Down
 797             destIndexEntry = Math.min(tokenRow.referenceIndex + 1, index.sortedIndexEntries.size() - 1);
 798         }
 799         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 800         Log.d(LOG, "onUpDownButton, destIndexEntry=" + dest.token);
 801         setSearchText(dest.token, false);
 802         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 803         defocusSearchText();
 804     }
 805
 806     void onRandomWordButton() {
 807         int destIndexEntry = rand.nextInt(index.sortedIndexEntries.size());
 808         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 809         setSearchText(dest.token, false);
 810         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 811         defocusSearchText();
 812     }
 813
 814     // --------------------------------------------------------------------------
 815     // Options Menu
 816     // --------------------------------------------------------------------------
 817
 818     final Random random = new Random();
 819
 820     @Override
 821     public boolean onCreateOptionsMenu(final Menu menu) {
 822
 823         if (PreferenceManager.getDefaultSharedPreferences(this)
 824                 .getBoolean(getString(R.string.showPrevNextButtonsKey), true)) {
 825             // Next word.
 826             nextWordMenuItem = menu.add(getString(R.string.nextWord))
 827                     .setIcon(R.drawable.arrow_down_float);
 828             MenuItemCompat.setShowAsAction(nextWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
 829             nextWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 830                 @Override
 831                 public boolean onMenuItemClick(MenuItem item) {
 832                     onUpDownButton(false);
 833                     return true;
 834                 }
 835             });
 836
 837             // Previous word.
 838             previousWordMenuItem = menu.add(getString(R.string.previousWord))
 839                     .setIcon(R.drawable.arrow_up_float);
 840             MenuItemCompat.setShowAsAction(previousWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
 841             previousWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 842                 @Override
 843                 public boolean onMenuItemClick(MenuItem item) {
 844                     onUpDownButton(true);
 845                     return true;
 846                 }
 847             });
 848         }
 849
 850         randomWordMenuItem = menu.add(getString(R.string.randomWord));
 851         randomWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 852             @Override
 853             public boolean onMenuItemClick(MenuItem item) {
 854                 onRandomWordButton();
 855                 return true;
 856             }
 857         });
 858
 859         application.onCreateGlobalOptionsMenu(this, menu);
 860
 861         {
 862             final MenuItem dictionaryManager = menu.add(getString(R.string.dictionaryManager));
 863             MenuItemCompat.setShowAsAction(dictionaryManager, MenuItem.SHOW_AS_ACTION_NEVER);
 864             dictionaryManager.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 865                 public boolean onMenuItemClick(final MenuItem menuItem) {
 866                     startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 867                     finish();
 868                     return false;
 869                 }
 870             });
 871         }
 872
 873         {
 874             final MenuItem aboutDictionary = menu.add(getString(R.string.aboutDictionary));
 875             MenuItemCompat.setShowAsAction(aboutDictionary, MenuItem.SHOW_AS_ACTION_NEVER);
 876             aboutDictionary.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 877                 public boolean onMenuItemClick(final MenuItem menuItem) {
 878                     final Context context = getListView().getContext();
 879                     final Dialog dialog = new Dialog(context);
 880                     dialog.setContentView(R.layout.about_dictionary_dialog);
 881                     final TextView textView = (TextView) dialog.findViewById(R.id.text);
 882
 883                     final String name = application.getDictionaryName(dictFile.getName());
 884                     dialog.setTitle(name);
 885
 886                     final StringBuilder builder = new StringBuilder();
 887                     final DictionaryInfo dictionaryInfo = dictionary.getDictionaryInfo();
 888                     dictionaryInfo.uncompressedBytes = dictFile.length();
 889                     if (dictionaryInfo != null) {
 890                         builder.append(dictionaryInfo.dictInfo).append("\n\n");
 891                         builder.append(getString(R.string.dictionaryPath, dictFile.getPath()))
 892                                 .append("\n");
 893                         builder.append(
 894                                 getString(R.string.dictionarySize, dictionaryInfo.uncompressedBytes))
 895                                 .append("\n");
 896                         builder.append(
 897                                 getString(R.string.dictionaryCreationTime,
 898                                         dictionaryInfo.creationMillis)).append("\n");
 899                         for (final IndexInfo indexInfo : dictionaryInfo.indexInfos) {
 900                             builder.append("\n");
 901                             builder.append(getString(R.string.indexName, indexInfo.shortName))
 902                                     .append("\n");
 903                             builder.append(
 904                                     getString(R.string.mainTokenCount, indexInfo.mainTokenCount))
 905                                     .append("\n");
 906                         }
 907                         builder.append("\n");
 908                         builder.append(getString(R.string.sources)).append("\n");
 909                         for (final EntrySource source : dictionary.sources) {
 910                             builder.append(
 911                                     getString(R.string.sourceInfo, source.getName(),
 912                                             source.getNumEntries())).append("\n");
 913                         }
 914                     }
 915                     textView.setText(builder.toString());
 916
 917                     dialog.show();
 918                     final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
 919                     layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
 920                     layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
 921                     dialog.getWindow().setAttributes(layoutParams);
 922                     return false;
 923                 }
 924             });
 925         }
 926
 927         return true;
 928     }
 929
 930     // --------------------------------------------------------------------------
 931     // Context Menu + clicks
 932     // --------------------------------------------------------------------------
 933
 934     @Override
 935     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
 936         AdapterContextMenuInfo adapterContextMenuInfo = (AdapterContextMenuInfo) menuInfo;
 937         final RowBase row = (RowBase) getListAdapter().getItem(adapterContextMenuInfo.position);
 938
 939         final android.view.MenuItem addToWordlist = menu.add(getString(R.string.addToWordList,
 940                 wordList.getName()));
 941         addToWordlist
 942                 .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 943                     public boolean onMenuItemClick(android.view.MenuItem item) {
 944                         onAppendToWordList(row);
 945                         return false;
 946                     }
 947                 });
 948
 949         final android.view.MenuItem share = menu.add("Share");
 950         share.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 951             public boolean onMenuItemClick(android.view.MenuItem item) {
 952                 Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
 953                 shareIntent.setType("text/plain");
 954                 shareIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, row.getTokenRow(true)
 955                         .getToken());
 956                 shareIntent.putExtra(android.content.Intent.EXTRA_TEXT,
 957                         row.getRawText(saveOnlyFirstSubentry));
 958                 startActivity(shareIntent);
 959                 return false;
 960             }
 961         });
 962
 963         final android.view.MenuItem copy = menu.add(android.R.string.copy);
 964         copy.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 965             public boolean onMenuItemClick(android.view.MenuItem item) {
 966                 onCopy(row);
 967                 return false;
 968             }
 969         });
 970
 971         if (selectedSpannableText != null) {
 972             final String selectedText = selectedSpannableText;
 973             final android.view.MenuItem searchForSelection = menu.add(getString(
 974                     R.string.searchForSelection,
 975                     selectedSpannableText));
 976             searchForSelection
 977                     .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 978                         public boolean onMenuItemClick(android.view.MenuItem item) {
 979                             jumpToTextFromHyperLink(selectedText, selectedSpannableIndex);
 980                             return false;
 981                         }
 982                     });
 983             // Rats, this won't be shown:
 984             //searchForSelection.setIcon(R.drawable.abs__ic_search);
 985         }
 986
 987         if ((row instanceof TokenRow || selectedSpannableText != null) && ttsReady) {
 988             final android.view.MenuItem speak = menu.add(R.string.speak);
 989             final String textToSpeak = row instanceof TokenRow ? ((TokenRow) row).getToken() : selectedSpannableText;
 990             updateTTSLanguage(row instanceof TokenRow ? indexIndex : selectedSpannableIndex);
 991             speak.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 992                 @Override
 993                 public boolean onMenuItemClick(android.view.MenuItem item) {
 994                     textToSpeech.speak(textToSpeak, TextToSpeech.QUEUE_FLUSH,
 995                             new HashMap<String, String>());
 996                     return false;
 997                 }
 998             });
 999         }
1000     }
1001
1002     private void jumpToTextFromHyperLink(
1003             final String selectedText, final int defaultIndexToUse) {
1004         int indexToUse = -1;
1005         int numFound = 0;
1006         for (int i = 0; i < dictionary.indices.size(); ++i) {
1007             final Index index = dictionary.indices.get(i);
1008             if (indexPrepFinished) {
1009                 System.out.println("Doing index lookup: on " + selectedText);
1010                 final IndexEntry indexEntry = index.findExact(selectedText);
1011                 if (indexEntry != null) {
1012                     final TokenRow tokenRow = index.rows.get(indexEntry.startRow)
1013                             .getTokenRow(false);
1014                     if (tokenRow != null && tokenRow.hasMainEntry) {
1015                         indexToUse = i;
1016                         ++numFound;
1017                     }
1018                 }
1019             } else {
1020                 Log.w(LOG, "Skipping findExact on index " + index.shortName);
1021             }
1022         }
1023         if (numFound != 1 || indexToUse == -1) {
1024             indexToUse = defaultIndexToUse;
1025         }
1026         // Without this extra delay, the call to jumpToRow that this
1027         // invokes doesn't always actually have any effect.
1028         final int actualIndexToUse = indexToUse;
1029         getListView().postDelayed(new Runnable() {
1030             @Override
1031             public void run() {
1032                 setIndexAndSearchText(actualIndexToUse, selectedText, true);
1033             }
1034         }, 100);
1035     }
1036
1037     /**
1038      * Called when user clicks outside of search text, so that they can start
1039      * typing again immediately.
1040      */
1041     void defocusSearchText() {
1042         // Log.d(LOG, "defocusSearchText");
1043         // Request focus so that if we start typing again, it clears the text
1044         // input.
1045         getListView().requestFocus();
1046
1047         // Visual indication that a new keystroke will clear the search text.
1048         // Doesn't seem to work unless searchText has focus.
1049         // searchView.selectAll();
1050     }
1051
1052     protected void onListItemClick(ListView l, View v, int row, long id) {
1053         defocusSearchText();
1054         if (clickOpensContextMenu && dictRaf != null) {
1055             openContextMenu(v);
1056         }
1057     }
1058
1059     @SuppressLint("SimpleDateFormat")
1060     void onAppendToWordList(final RowBase row) {
1061         defocusSearchText();
1062
1063         final StringBuilder rawText = new StringBuilder();
1064         rawText.append(new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(new Date())).append("\t");
1065         rawText.append(index.longName).append("\t");
1066         rawText.append(row.getTokenRow(true).getToken()).append("\t");
1067         rawText.append(row.getRawText(saveOnlyFirstSubentry));
1068         Log.d(LOG, "Writing : " + rawText);
1069
1070         try {
1071             wordList.getParentFile().mkdirs();
1072             final PrintWriter out = new PrintWriter(new FileWriter(wordList, true));
1073             out.println(rawText.toString());
1074             out.close();
1075         } catch (Exception e) {
1076             Log.e(LOG, "Unable to append to " + wordList.getAbsolutePath(), e);
1077             Toast.makeText(this,
1078                     getString(R.string.failedAddingToWordList, wordList.getAbsolutePath()),
1079                     Toast.LENGTH_LONG).show();
1080         }
1081         return;
1082     }
1083
1084     @SuppressWarnings("deprecation")
1085     void onCopy(final RowBase row) {
1086         defocusSearchText();
1087
1088         Log.d(LOG, "Copy, row=" + row);
1089         final StringBuilder result = new StringBuilder();
1090         result.append(row.getRawText(false));
1091         final ClipboardManager clipboardManager = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
1092         clipboardManager.setText(result.toString());
1093         Log.d(LOG, "Copied: " + result);
1094     }
1095
1096     @Override
1097     public boolean onKeyDown(final int keyCode, final KeyEvent event) {
1098         if (event.getUnicodeChar() != 0) {
1099             if (!searchView.hasFocus()) {
1100                 setSearchText("" + (char) event.getUnicodeChar(), true);
1101                 searchView.requestFocus();
1102             }
1103             return true;
1104         }
1105         if (keyCode == KeyEvent.KEYCODE_BACK) {
1106             // Log.d(LOG, "Clearing dictionary prefs.");
1107             // Pretend that we just autolaunched so that we won't do it again.
1108             // DictionaryManagerActivity.lastAutoLaunchMillis =
1109             // System.currentTimeMillis();
1110         }
1111         if (keyCode == KeyEvent.KEYCODE_ENTER) {
1112             Log.d(LOG, "Trying to hide soft keyboard.");
1113             final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
1114             View focus = getCurrentFocus();
1115             if (focus != null) {
1116                 inputManager.hideSoftInputFromWindow(focus.getWindowToken(),
1117                         InputMethodManager.HIDE_NOT_ALWAYS);
1118             }
1119             return true;
1120         }
1121         return super.onKeyDown(keyCode, event);
1122     }
1123
1124     private void setIndexAndSearchText(int newIndex, String newSearchText, boolean hideKeyboard) {
1125         Log.d(LOG, "Changing index to: " + newIndex);
1126         if (newIndex == -1) {
1127             Log.e(LOG, "Invalid index.");
1128             newIndex = 0;
1129         }
1130         if (newIndex != indexIndex) {
1131             indexIndex = newIndex;
1132             index = dictionary.indices.get(indexIndex);
1133             indexAdapter = new IndexAdapter(index);
1134             setListAdapter(indexAdapter);
1135             Log.d(LOG, "changingIndex, newLang=" + index.longName);
1136             setDictionaryPrefs(this, dictFile, index.shortName, searchView.getQuery().toString());
1137             updateLangButton();
1138         }
1139         setSearchText(newSearchText, true, hideKeyboard);
1140     }
1141
1142     private void setSearchText(final String text, final boolean triggerSearch, boolean hideKeyboard) {
1143         Log.d(LOG, "setSearchText, text=" + text + ", triggerSearch=" + triggerSearch);
1144         // Disable the listener, because sometimes it doesn't work.
1145         searchView.setOnQueryTextListener(null);
1146         searchView.setQuery(text, false);
1147         moveCursorToRight();
1148         searchView.setOnQueryTextListener(onQueryTextListener);
1149
1150         if (triggerSearch) {
1151             onSearchTextChange(text);
1152         }
1153
1154         // We don't want to show virtual keyboard when we're changing searchView text programatically:
1155         if (hideKeyboard) {
1156             hideKeyboard();
1157         }
1158     }
1159
1160     private void setSearchText(final String text, final boolean triggerSearch) {
1161         setSearchText(text, triggerSearch, true);
1162     }
1163
1164     // private long cursorDelayMillis = 100;
1165     private void moveCursorToRight() {
1166         // if (searchText.getLayout() != null) {
1167         // cursorDelayMillis = 100;
1168         // // Surprising, but this can crash when you rotate...
1169         // Selection.moveToRightEdge(searchView.getQuery(),
1170         // searchText.getLayout());
1171         // } else {
1172         // uiHandler.postDelayed(new Runnable() {
1173         // @Override
1174         // public void run() {
1175         // moveCursorToRight();
1176         // }
1177         // }, cursorDelayMillis);
1178         // cursorDelayMillis = Math.min(10 * 1000, 2 * cursorDelayMillis);
1179         // }
1180     }
1181
1182     // --------------------------------------------------------------------------
1183     // SearchOperation
1184     // --------------------------------------------------------------------------
1185
1186     private void searchFinished(final SearchOperation searchOperation) {
1187         if (searchOperation.interrupted.get()) {
1188             Log.d(LOG, "Search operation was interrupted: " + searchOperation);
1189             return;
1190         }
1191         if (searchOperation != this.currentSearchOperation) {
1192             Log.d(LOG, "Stale searchOperation finished: " + searchOperation);
1193             return;
1194         }
1195
1196         final Index.IndexEntry searchResult = searchOperation.searchResult;
1197         Log.d(LOG, "searchFinished: " + searchOperation + ", searchResult=" + searchResult);
1198
1199         currentSearchOperation = null;
1200         uiHandler.postDelayed(new Runnable() {
1201             @Override
1202             public void run() {
1203                 if (currentSearchOperation == null) {
1204                     if (searchResult != null) {
1205                         if (isFiltered()) {
1206                             clearFiltered();
1207                         }
1208                         jumpToRow(searchResult.startRow);
1209                     } else if (searchOperation.multiWordSearchResult != null) {
1210                         // Multi-row search....
1211                         setFiltered(searchOperation);
1212                     } else {
1213                         throw new IllegalStateException("This should never happen.");
1214                     }
1215                 } else {
1216                     Log.d(LOG, "More coming, waiting for currentSearchOperation.");
1217                 }
1218             }
1219         }, 20);
1220     }
1221
1222     private final void jumpToRow(final int row) {
1223         Log.d(LOG, "jumpToRow: " + row + ", refocusSearchText=" + false);
1224         // getListView().requestFocusFromTouch();
1225         getListView().setSelectionFromTop(row, 0);
1226         getListView().setSelected(true);
1227     }
1228
1229     static final Pattern WHITESPACE = Pattern.compile("\\s+");
1230
1231     final class SearchOperation implements Runnable {
1232
1233         final AtomicBoolean interrupted = new AtomicBoolean(false);
1234
1235         final String searchText;
1236
1237         List<String> searchTokens; // filled in for multiWord.
1238
1239         final Index index;
1240
1241         long searchStartMillis;
1242
1243         Index.IndexEntry searchResult;
1244
1245         List<RowBase> multiWordSearchResult;
1246
1247         boolean done = false;
1248
1249         SearchOperation(final String searchText, final Index index) {
1250             this.searchText = StringUtil.normalizeWhitespace(searchText);
1251             this.index = index;
1252         }
1253
1254         public String toString() {
1255             return String.format("SearchOperation(%s,%s)", searchText, interrupted.toString());
1256         }
1257
1258         @Override
1259         public void run() {
1260             try {
1261                 searchStartMillis = System.currentTimeMillis();
1262                 final String[] searchTokenArray = WHITESPACE.split(searchText);
1263                 if (searchTokenArray.length == 1) {
1264                     searchResult = index.findInsertionPoint(searchText, interrupted);
1265                 } else {
1266                     searchTokens = Arrays.asList(searchTokenArray);
1267                     multiWordSearchResult = index.multiWordSearch(searchText, searchTokens,
1268                             interrupted);
1269                 }
1270                 Log.d(LOG,
1271                         "searchText=" + searchText + ", searchDuration="
1272                                 + (System.currentTimeMillis() - searchStartMillis)
1273                                 + ", interrupted=" + interrupted.get());
1274                 if (!interrupted.get()) {
1275                     uiHandler.post(new Runnable() {
1276                         @Override
1277                         public void run() {
1278                             searchFinished(SearchOperation.this);
1279                         }
1280                     });
1281                 } else {
1282                     Log.d(LOG, "interrupted, skipping searchFinished.");
1283                 }
1284             } catch (Exception e) {
1285                 Log.e(LOG, "Failure during search (can happen during Activity close.");
1286             } finally {
1287                 synchronized (this) {
1288                     done = true;
1289                     this.notifyAll();
1290                 }
1291             }
1292         }
1293     }
1294
1295     // --------------------------------------------------------------------------
1296     // IndexAdapter
1297     // --------------------------------------------------------------------------
1298
1299     static ViewGroup.LayoutParams WEIGHT_1 = new LinearLayout.LayoutParams(
1300             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 1.0f);
1301
1302     static ViewGroup.LayoutParams WEIGHT_0 = new LinearLayout.LayoutParams(
1303             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 0.0f);
1304
1305     final class IndexAdapter extends BaseAdapter {
1306
1307         private static final float PADDING_DEFAULT_DP = 8;
1308
1309         private static final float PADDING_LARGE_DP = 16;
1310
1311         final Index index;
1312
1313         final List<RowBase> rows;
1314
1315         final Set<String> toHighlight;
1316
1317         private int mPaddingDefault;
1318
1319         private int mPaddingLarge;
1320
1321         IndexAdapter(final Index index) {
1322             this.index = index;
1323             rows = index.rows;
1324             this.toHighlight = null;
1325             getMetrics();
1326         }
1327
1328         IndexAdapter(final Index index, final List<RowBase> rows, final List<String> toHighlight) {
1329             this.index = index;
1330             this.rows = rows;
1331             this.toHighlight = new LinkedHashSet<String>(toHighlight);
1332             getMetrics();
1333         }
1334
1335         private void getMetrics() {
1336             // Get the screen's density scale
1337             final float scale = getResources().getDisplayMetrics().density;
1338             // Convert the dps to pixels, based on density scale
1339             mPaddingDefault = (int) (PADDING_DEFAULT_DP * scale + 0.5f);
1340             mPaddingLarge = (int) (PADDING_LARGE_DP * scale + 0.5f);
1341         }
1342
1343         @Override
1344         public int getCount() {
1345             return rows.size();
1346         }
1347
1348         @Override
1349         public RowBase getItem(int position) {
1350             return rows.get(position);
1351         }
1352
1353         @Override
1354         public long getItemId(int position) {
1355             return getItem(position).index();
1356         }
1357
1358         @Override
1359         public TableLayout getView(int position, View convertView, ViewGroup parent) {
1360             final TableLayout result;
1361             if (convertView instanceof TableLayout) {
1362                 result = (TableLayout) convertView;
1363                 result.removeAllViews();
1364             } else {
1365                 result = new TableLayout(parent.getContext());
1366             }
1367             final RowBase row = getItem(position);
1368             if (row instanceof PairEntry.Row) {
1369                 return getView(position, (PairEntry.Row) row, parent, result);
1370             } else if (row instanceof TokenRow) {
1371                 return getView((TokenRow) row, parent, result);
1372             } else if (row instanceof HtmlEntry.Row) {
1373                 return getView((HtmlEntry.Row) row, parent, result);
1374             } else {
1375                 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
1376             }
1377         }
1378
1379         private TableLayout getView(final int position, PairEntry.Row row, ViewGroup parent,
1380                 final TableLayout result) {
1381             final PairEntry entry = row.getEntry();
1382             final int rowCount = entry.pairs.size();
1383
1384             final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams();
1385             layoutParams.weight = 0.5f;
1386             layoutParams.leftMargin = mPaddingLarge;
1387
1388             for (int r = 0; r < rowCount; ++r) {
1389                 final TableRow tableRow = new TableRow(result.getContext());
1390
1391                 final TextView col1 = new TextView(tableRow.getContext());
1392                 final TextView col2 = new TextView(tableRow.getContext());
1393
1394                 // Set the columns in the table.
1395                 if (r > 0) {
1396                     final TextView bullet = new TextView(tableRow.getContext());
1397                     bullet.setText(" • ");
1398                     tableRow.addView(bullet);
1399                 }
1400                 tableRow.addView(col1, layoutParams);
1401                 final TextView margin = new TextView(tableRow.getContext());
1402                 margin.setText(" ");
1403                 tableRow.addView(margin);
1404                 if (r > 0) {
1405                     final TextView bullet = new TextView(tableRow.getContext());
1406                     bullet.setText(" • ");
1407                     tableRow.addView(bullet);
1408                 }
1409                 tableRow.addView(col2, layoutParams);
1410                 col1.setWidth(1);
1411                 col2.setWidth(1);
1412
1413                 // Set what's in the columns.
1414
1415                 final Pair pair = entry.pairs.get(r);
1416                 final String col1Text = index.swapPairEntries ? pair.lang2 : pair.lang1;
1417                 final String col2Text = index.swapPairEntries ? pair.lang1 : pair.lang2;
1418
1419                 col1.setText(col1Text, TextView.BufferType.SPANNABLE);
1420                 col2.setText(col2Text, TextView.BufferType.SPANNABLE);
1421
1422                 // Bold the token instances in col1.
1423                 final Set<String> toBold = toHighlight != null ? this.toHighlight : Collections
1424                         .singleton(row.getTokenRow(true).getToken());
1425                 final Spannable col1Spannable = (Spannable) col1.getText();
1426                 for (final String token : toBold) {
1427                     int startPos = 0;
1428                     while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
1429                         col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos, startPos
1430                                 + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1431                         startPos += token.length();
1432                     }
1433                 }
1434
1435                 createTokenLinkSpans(col1, col1Spannable, col1Text);
1436                 createTokenLinkSpans(col2, (Spannable) col2.getText(), col2Text);
1437
1438                 col1.setTypeface(typeface);
1439                 col2.setTypeface(typeface);
1440                 col1.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1441                 col2.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1442                 // col2.setBackgroundResource(theme.otherLangBg);
1443
1444                 if (index.swapPairEntries) {
1445                     col2.setOnLongClickListener(textViewLongClickListenerIndex0);
1446                     col1.setOnLongClickListener(textViewLongClickListenerIndex1);
1447                 } else {
1448                     col1.setOnLongClickListener(textViewLongClickListenerIndex0);
1449                     col2.setOnLongClickListener(textViewLongClickListenerIndex1);
1450                 }
1451
1452                 result.addView(tableRow);
1453             }
1454
1455             // Because we have a Button inside a ListView row:
1456             // http://groups.google.com/group/android-developers/browse_thread/thread/3d96af1530a7d62a?pli=1
1457             result.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
1458             result.setClickable(true);
1459             result.setFocusable(true);
1460             result.setLongClickable(true);
1461 //            result.setBackgroundResource(android.R.drawable.menuitem_background);
1462
1463             result.setBackgroundResource(theme.normalRowBg);
1464
1465             result.setOnClickListener(new TextView.OnClickListener() {
1466                 @Override
1467                 public void onClick(View v) {
1468                     DictionaryActivity.this.onListItemClick(getListView(), v, position, position);
1469                 }
1470             });
1471
1472             return result;
1473         }
1474
1475         private TableLayout getPossibleLinkToHtmlEntryView(final boolean isTokenRow,
1476                 final String text, final boolean hasMainEntry, final List<HtmlEntry> htmlEntries,
1477                 final String htmlTextToHighlight, ViewGroup parent, final TableLayout result) {
1478             final Context context = parent.getContext();
1479
1480             final TableRow tableRow = new TableRow(result.getContext());
1481             tableRow.setBackgroundResource(hasMainEntry ? theme.tokenRowMainBg
1482                     : theme.tokenRowOtherBg);
1483             if (isTokenRow) {
1484                 tableRow.setPadding(mPaddingDefault, mPaddingDefault, mPaddingDefault, 0);
1485             } else {
1486                 tableRow.setPadding(mPaddingLarge, mPaddingDefault, mPaddingDefault, 0);
1487             }
1488             result.addView(tableRow);
1489
1490             // Make it so we can long-click on these token rows, too:
1491             final TextView textView = new TextView(context);
1492             textView.setText(text, BufferType.SPANNABLE);
1493             createTokenLinkSpans(textView, (Spannable) textView.getText(), text);
1494             textView.setOnLongClickListener(indexIndex > 0 ? textViewLongClickListenerIndex1 : textViewLongClickListenerIndex0);
1495             result.setLongClickable(true);
1496
1497             // Doesn't work:
1498             // textView.setTextColor(android.R.color.secondary_text_light);
1499             textView.setTypeface(typeface);
1500             TableRow.LayoutParams lp = new TableRow.LayoutParams(0);
1501             if (isTokenRow) {
1502                 textView.setTextAppearance(context, theme.tokenRowFg);
1503                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 4 * fontSizeSp / 3);
1504             } else {
1505                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1506             }
1507             lp.weight = 1.0f;
1508
1509             textView.setLayoutParams(lp);
1510             tableRow.addView(textView);
1511
1512             if (!htmlEntries.isEmpty()) {
1513                 final ClickableSpan clickableSpan = new ClickableSpan() {
1514                     @Override
1515                     public void onClick(View widget) {
1516                     }
1517                 };
1518                 ((Spannable) textView.getText()).setSpan(clickableSpan, 0, text.length(),
1519                         Spannable.SPAN_INCLUSIVE_INCLUSIVE);
1520                 result.setClickable(true);
1521                 textView.setClickable(true);
1522                 textView.setMovementMethod(LinkMovementMethod.getInstance());
1523                 textView.setOnClickListener(new OnClickListener() {
1524                     @Override
1525                     public void onClick(View v) {
1526                         String html = HtmlEntry.htmlBody(htmlEntries, index.shortName);
1527                         // Log.d(LOG, "html=" + html);
1528                         startActivityForResult(
1529                                 HtmlDisplayActivity.getHtmlIntent(getApplicationContext(), String.format(
1530                                         "<html><head></head><body>%s</body></html>", html),
1531                                         htmlTextToHighlight, false),
1532                                 0);
1533                     }
1534                 });
1535             }
1536             return result;
1537         }
1538
1539         private TableLayout getView(TokenRow row, ViewGroup parent, final TableLayout result) {
1540             final IndexEntry indexEntry = row.getIndexEntry();
1541             return getPossibleLinkToHtmlEntryView(true, indexEntry.token, row.hasMainEntry,
1542                     indexEntry.htmlEntries, null, parent, result);
1543         }
1544
1545         private TableLayout getView(HtmlEntry.Row row, ViewGroup parent, final TableLayout result) {
1546             final HtmlEntry htmlEntry = row.getEntry();
1547             final TokenRow tokenRow = row.getTokenRow(true);
1548             return getPossibleLinkToHtmlEntryView(false,
1549                     getString(R.string.seeAlso, htmlEntry.title, htmlEntry.entrySource.getName()),
1550                     false, Collections.singletonList(htmlEntry), tokenRow.getToken(), parent,
1551                     result);
1552         }
1553
1554     }
1555
1556     static final Pattern CHAR_DASH = Pattern.compile("['\\p{L}\\p{M}\\p{N}]+");
1557
1558     private void createTokenLinkSpans(final TextView textView, final Spannable spannable,
1559             final String text) {
1560         // Saw from the source code that LinkMovementMethod sets the selection!
1561         // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.3.1_r1/android/text/method/LinkMovementMethod.java#LinkMovementMethod
1562         textView.setMovementMethod(LinkMovementMethod.getInstance());
1563         final Matcher matcher = CHAR_DASH.matcher(text);
1564         while (matcher.find()) {
1565             spannable.setSpan(new NonLinkClickableSpan(textColorFg), matcher.start(),
1566                     matcher.end(),
1567                     Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1568         }
1569     }
1570
1571     String selectedSpannableText = null;
1572
1573     int selectedSpannableIndex = -1;
1574
1575     @Override
1576     public boolean onTouchEvent(MotionEvent event) {
1577         selectedSpannableText = null;
1578         selectedSpannableIndex = -1;
1579         return super.onTouchEvent(event);
1580     }
1581
1582     private class TextViewLongClickListener implements OnLongClickListener {
1583         final int index;
1584
1585         private TextViewLongClickListener(final int index) {
1586             this.index = index;
1587         }
1588
1589         @Override
1590         public boolean onLongClick(final View v) {
1591             final TextView textView = (TextView) v;
1592             final int start = textView.getSelectionStart();
1593             final int end = textView.getSelectionEnd();
1594             if (start >= 0 && end >= 0) {
1595                 selectedSpannableText = textView.getText().subSequence(start, end).toString();
1596                 selectedSpannableIndex = index;
1597             }
1598             return false;
1599         }
1600     }
1601
1602     final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1603             0);
1604
1605     final TextViewLongClickListener textViewLongClickListenerIndex1 = new TextViewLongClickListener(
1606             1);
1607
1608     // --------------------------------------------------------------------------
1609     // SearchText
1610     // --------------------------------------------------------------------------
1611
1612     void onSearchTextChange(final String text) {
1613         if ("thadolina".equals(text)) {
1614             final Dialog dialog = new Dialog(getListView().getContext());
1615             dialog.setContentView(R.layout.thadolina_dialog);
1616             dialog.setTitle("Ti amo, amore mio!");
1617             final ImageView imageView = (ImageView) dialog.findViewById(R.id.thadolina_image);
1618             imageView.setOnClickListener(new OnClickListener() {
1619                 @Override
1620                 public void onClick(View v) {
1621                     final Intent intent = new Intent(Intent.ACTION_VIEW);
1622                     intent.setData(Uri.parse("https://sites.google.com/site/cfoxroxvday/vday2012"));
1623                     startActivity(intent);
1624                 }
1625             });
1626             dialog.show();
1627         }
1628         if (dictRaf == null) {
1629             Log.d(LOG, "searchText changed during shutdown, doing nothing.");
1630             return;
1631         }
1632
1633         // if (!searchView.hasFocus()) {
1634         // Log.d(LOG, "searchText changed without focus, doing nothing.");
1635         // return;
1636         // }
1637         Log.d(LOG, "onSearchTextChange: " + text);
1638         if (currentSearchOperation != null) {
1639             Log.d(LOG, "Interrupting currentSearchOperation.");
1640             currentSearchOperation.interrupted.set(true);
1641         }
1642         currentSearchOperation = new SearchOperation(text, index);
1643         searchExecutor.execute(currentSearchOperation);
1644     }
1645
1646     // --------------------------------------------------------------------------
1647     // Filtered results.
1648     // --------------------------------------------------------------------------
1649
1650     boolean isFiltered() {
1651         return rowsToShow != null;
1652     }
1653
1654     void setFiltered(final SearchOperation searchOperation) {
1655         if (nextWordMenuItem != null) {
1656             nextWordMenuItem.setEnabled(false);
1657             previousWordMenuItem.setEnabled(false);
1658         }
1659         rowsToShow = searchOperation.multiWordSearchResult;
1660         setListAdapter(new IndexAdapter(index, rowsToShow, searchOperation.searchTokens));
1661     }
1662
1663     void clearFiltered() {
1664         if (nextWordMenuItem != null) {
1665             nextWordMenuItem.setEnabled(true);
1666             previousWordMenuItem.setEnabled(true);
1667         }
1668         setListAdapter(new IndexAdapter(index));
1669         rowsToShow = null;
1670     }
1671
1672 }