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

   1 // Copyright 2011 Google Inc. All Rights Reserved.
   2 //
   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.app.Dialog;
  18 import android.app.ListActivity;
  19 import android.content.Context;
  20 import android.content.Intent;
  21 import android.content.SharedPreferences;
  22 import android.graphics.Typeface;
  23 import android.net.Uri;
  24 import android.os.Bundle;
  25 import android.os.Handler;
  26 import android.preference.PreferenceManager;
  27 import android.text.ClipboardManager;
  28 import android.text.Editable;
  29 import android.text.Selection;
  30 import android.text.Spannable;
  31 import android.text.TextWatcher;
  32 import android.text.method.LinkMovementMethod;
  33 import android.text.style.StyleSpan;
  34 import android.util.Log;
  35 import android.util.TypedValue;
  36 import android.view.ContextMenu;
  37 import android.view.ContextMenu.ContextMenuInfo;
  38 import android.view.KeyEvent;
  39 import android.view.Menu;
  40 import android.view.MenuItem;
  41 import android.view.MenuItem.OnMenuItemClickListener;
  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.InputMethodManager;
  49 import android.widget.AdapterView;
  50 import android.widget.AdapterView.AdapterContextMenuInfo;
  51 import android.widget.BaseAdapter;
  52 import android.widget.Button;
  53 import android.widget.EditText;
  54 import android.widget.ImageButton;
  55 import android.widget.ImageView;
  56 import android.widget.LinearLayout;
  57 import android.widget.ListAdapter;
  58 import android.widget.ListView;
  59 import android.widget.TableLayout;
  60 import android.widget.TableRow;
  61 import android.widget.TextView;
  62 import android.widget.Toast;
  63
  64 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  65 import com.hughes.android.dictionary.engine.Dictionary;
  66 import com.hughes.android.dictionary.engine.EntrySource;
  67 import com.hughes.android.dictionary.engine.HtmlEntry;
  68 import com.hughes.android.dictionary.engine.Index;
  69 import com.hughes.android.dictionary.engine.Index.IndexEntry;
  70 import com.hughes.android.dictionary.engine.PairEntry;
  71 import com.hughes.android.dictionary.engine.PairEntry.Pair;
  72 import com.hughes.android.dictionary.engine.RowBase;
  73 import com.hughes.android.dictionary.engine.TokenRow;
  74 import com.hughes.android.dictionary.engine.TransliteratorManager;
  75 import com.hughes.android.util.IntentLauncher;
  76 import com.hughes.android.util.NonLinkClickableSpan;
  77
  78 import java.io.File;
  79 import java.io.FileWriter;
  80 import java.io.IOException;
  81 import java.io.PrintWriter;
  82 import java.io.RandomAccessFile;
  83 import java.text.SimpleDateFormat;
  84 import java.util.Arrays;
  85 import java.util.Collections;
  86 import java.util.Date;
  87 import java.util.LinkedHashSet;
  88 import java.util.List;
  89 import java.util.Random;
  90 import java.util.Set;
  91 import java.util.concurrent.Executor;
  92 import java.util.concurrent.Executors;
  93 import java.util.concurrent.ThreadFactory;
  94 import java.util.concurrent.atomic.AtomicBoolean;
  95 import java.util.regex.Matcher;
  96 import java.util.regex.Pattern;
  97
  98 public class DictionaryActivity extends ListActivity {
  99
 100     static final String LOG = "QuickDic";
 101
 102     private String initialSearchText;
 103
 104     DictionaryApplication application;
 105
 106     File dictFile = null;
 107
 108     RandomAccessFile dictRaf = null;
 109
 110     Dictionary dictionary = null;
 111
 112     int indexIndex = 0;
 113
 114     Index index = null;
 115
 116     List<RowBase> rowsToShow = null; // if not null, just show these rows.
 117
 118     // package for test.
 119     final Handler uiHandler = new Handler();
 120
 121     private final Executor searchExecutor = Executors.newSingleThreadExecutor(new ThreadFactory() {
 122         @Override
 123         public Thread newThread(Runnable r) {
 124             return new Thread(r, "searchExecutor");
 125         }
 126     });
 127
 128     private SearchOperation currentSearchOperation = null;
 129
 130     C.Theme theme = C.Theme.LIGHT;
 131
 132     Typeface typeface;
 133
 134     int fontSizeSp;
 135
 136     EditText searchText;
 137
 138     Button langButton;
 139
 140     // Never null.
 141     private File wordList = null;
 142
 143     private boolean saveOnlyFirstSubentry = false;
 144
 145     private boolean clickOpensContextMenu = false;
 146
 147     // Visible for testing.
 148     ListAdapter indexAdapter = null;
 149
 150     final SearchTextWatcher searchTextWatcher = new SearchTextWatcher();
 151
 152     /**
 153      * For some languages, loading the transliterators used in this search takes
 154      * a long time, so we fire it up on a different thread, and don't invoke it
 155      * from the main thread until it's already finished once.
 156      */
 157     private volatile boolean indexPrepFinished = false;
 158
 159     public DictionaryActivity() {
 160     }
 161
 162     public static Intent getLaunchIntent(final File dictFile, final int indexIndex,
 163             final String searchToken) {
 164         final Intent intent = new Intent();
 165         intent.setClassName(DictionaryActivity.class.getPackage().getName(),
 166                 DictionaryActivity.class.getName());
 167         intent.putExtra(C.DICT_FILE, dictFile.getPath());
 168         intent.putExtra(C.INDEX_INDEX, indexIndex);
 169         intent.putExtra(C.SEARCH_TOKEN, searchToken);
 170         return intent;
 171     }
 172
 173     @Override
 174     protected void onSaveInstanceState(final Bundle outState) {
 175         super.onSaveInstanceState(outState);
 176         Log.d(LOG, "onSaveInstanceState: " + searchText.getText().toString());
 177         outState.putInt(C.INDEX_INDEX, indexIndex);
 178         outState.putString(C.SEARCH_TOKEN, searchText.getText().toString());
 179     }
 180
 181     @Override
 182     protected void onRestoreInstanceState(final Bundle outState) {
 183         super.onRestoreInstanceState(outState);
 184         Log.d(LOG, "onRestoreInstanceState: " + outState.getString(C.SEARCH_TOKEN));
 185         onCreate(outState);
 186     }
 187
 188     @Override
 189     public void onCreate(Bundle savedInstanceState) {
 190         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 191         prefs.edit().remove(C.INDEX_INDEX).commit(); // Don't auto-launch if
 192                                                      // this fails.
 193
 194         setTheme(((DictionaryApplication) getApplication()).getSelectedTheme().themeId);
 195
 196         Log.d(LOG, "onCreate:" + this);
 197         super.onCreate(savedInstanceState);
 198
 199         application = (DictionaryApplication) getApplication();
 200         theme = application.getSelectedTheme();
 201
 202         final Intent intent = getIntent();
 203         dictFile = new File(intent.getStringExtra(C.DICT_FILE));
 204
 205         try {
 206             final String name = application.getDictionaryName(dictFile.getName());
 207             this.setTitle("QuickDic: " + name);
 208             dictRaf = new RandomAccessFile(dictFile, "r");
 209             dictionary = new Dictionary(dictRaf);
 210         } catch (Exception e) {
 211             Log.e(LOG, "Unable to load dictionary.", e);
 212             if (dictRaf != null) {
 213                 try {
 214                     dictRaf.close();
 215                 } catch (IOException e1) {
 216                     Log.e(LOG, "Unable to close dictRaf.", e1);
 217                 }
 218                 dictRaf = null;
 219             }
 220             Toast.makeText(this, getString(R.string.invalidDictionary, "", e.getMessage()),
 221                     Toast.LENGTH_LONG).show();
 222             startActivity(DictionaryManagerActivity.getLaunchIntent());
 223             finish();
 224             return;
 225         }
 226         indexIndex = intent.getIntExtra(C.INDEX_INDEX, 0);
 227         if (savedInstanceState != null) {
 228             indexIndex = savedInstanceState.getInt(C.INDEX_INDEX, indexIndex);
 229         }
 230         indexIndex %= dictionary.indices.size();
 231         Log.d(LOG, "Loading index " + indexIndex);
 232         index = dictionary.indices.get(indexIndex);
 233         setListAdapter(new IndexAdapter(index));
 234
 235         // Pre-load the collators.
 236         new Thread(new Runnable() {
 237             public void run() {
 238                 final long startMillis = System.currentTimeMillis();
 239                 try {
 240                     TransliteratorManager.init(new TransliteratorManager.Callback() {
 241                         @Override
 242                         public void onTransliteratorReady() {
 243                             uiHandler.post(new Runnable() {
 244                                 @Override
 245                                 public void run() {
 246                                     onSearchTextChange(searchText.getText().toString());
 247                                 }
 248                             });
 249                         }
 250                     });
 251
 252                     for (final Index index : dictionary.indices) {
 253                         final String searchToken = index.sortedIndexEntries.get(0).token;
 254                         final IndexEntry entry = index.findExact(searchToken);
 255                         if (!searchToken.equals(entry.token)) {
 256                             Log.e(LOG, "Couldn't find token: " + searchToken + ", " + entry.token);
 257                         }
 258                     }
 259                     indexPrepFinished = true;
 260                 } catch (Exception e) {
 261                     Log.w(LOG,
 262                             "Exception while prepping.  This can happen if dictionary is closed while search is happening.");
 263                 }
 264                 Log.d(LOG, "Prepping indices took:" + (System.currentTimeMillis() - startMillis));
 265             }
 266         }).start();
 267
 268         String fontName = prefs.getString(getString(R.string.fontKey), "FreeSerif.ttf.jpg");
 269         if ("SYSTEM".equals(fontName)) {
 270             typeface = Typeface.DEFAULT;
 271         } else {
 272             try {
 273                 typeface = Typeface.createFromAsset(getAssets(), fontName);
 274             } catch (Exception e) {
 275                 Log.w(LOG, "Exception trying to use typeface, using default.", e);
 276                 Toast.makeText(this, getString(R.string.fontFailure, e.getLocalizedMessage()),
 277                         Toast.LENGTH_LONG).show();
 278             }
 279         }
 280         // if (!"SYSTEM".equals(fontName)) {
 281         // throw new RuntimeException("Test force using system font: " +
 282         // fontName);
 283         // }
 284         if (typeface == null) {
 285             Log.w(LOG, "Unable to create typeface, using default.");
 286             typeface = Typeface.DEFAULT;
 287         }
 288         final String fontSize = prefs.getString(getString(R.string.fontSizeKey), "14");
 289         try {
 290             fontSizeSp = Integer.parseInt(fontSize.trim());
 291         } catch (NumberFormatException e) {
 292             fontSizeSp = 14;
 293         }
 294
 295         setContentView(R.layout.dictionary_activity);
 296         searchText = (EditText) findViewById(R.id.SearchText);
 297         searchText.requestFocus();
 298         searchText.addTextChangedListener(searchTextWatcher);
 299
 300         // Set the search text from the intent, then the saved state.
 301         String text = getIntent().getStringExtra(C.SEARCH_TOKEN);
 302         if (savedInstanceState != null) {
 303             text = savedInstanceState.getString(C.SEARCH_TOKEN);
 304         }
 305         if (text == null) {
 306             text = "";
 307         }
 308         setSearchText(text, true);
 309         Log.d(LOG, "Trying to restore searchText=" + text);
 310
 311         final View clearSearchTextButton = findViewById(R.id.ClearSearchTextButton);
 312         clearSearchTextButton.setOnClickListener(new OnClickListener() {
 313             public void onClick(View v) {
 314                 onClearSearchTextButton();
 315             }
 316         });
 317         clearSearchTextButton.setVisibility(PreferenceManager.getDefaultSharedPreferences(this)
 318                 .getBoolean(getString(R.string.showClearSearchTextButtonKey), true) ? View.VISIBLE
 319                 : View.GONE);
 320
 321         langButton = (Button) findViewById(R.id.LangButton);
 322         langButton.setOnClickListener(new OnClickListener() {
 323             public void onClick(View v) {
 324                 onLanguageButton();
 325             }
 326         });
 327         langButton.setOnLongClickListener(new OnLongClickListener() {
 328             @Override
 329             public boolean onLongClick(View v) {
 330                 onLanguageButtonLongClick(v.getContext());
 331                 return true;
 332             }
 333         });
 334         updateLangButton();
 335
 336         final View upButton = findViewById(R.id.UpButton);
 337         upButton.setOnClickListener(new OnClickListener() {
 338             public void onClick(View v) {
 339                 onUpDownButton(true);
 340             }
 341         });
 342         final View downButton = findViewById(R.id.DownButton);
 343         downButton.setOnClickListener(new OnClickListener() {
 344             public void onClick(View v) {
 345                 onUpDownButton(false);
 346             }
 347         });
 348
 349         getListView().setOnItemSelectedListener(new ListView.OnItemSelectedListener() {
 350             @Override
 351             public void onItemSelected(AdapterView<?> adapterView, View arg1, final int position,
 352                     long id) {
 353                 if (!searchText.isFocused()) {
 354                     if (!isFiltered()) {
 355                         final RowBase row = (RowBase) getListAdapter().getItem(position);
 356                         Log.d(LOG, "onItemSelected: " + row.index());
 357                         final TokenRow tokenRow = row.getTokenRow(true);
 358                         searchText.setText(tokenRow.getToken());
 359                     }
 360                 }
 361             }
 362
 363             @Override
 364             public void onNothingSelected(AdapterView<?> arg0) {
 365             }
 366         });
 367
 368         // ContextMenu.
 369         registerForContextMenu(getListView());
 370
 371         // Prefs.
 372         wordList = new File(prefs.getString(getString(R.string.wordListFileKey),
 373                 getString(R.string.wordListFileDefault)));
 374         saveOnlyFirstSubentry = prefs.getBoolean(getString(R.string.saveOnlyFirstSubentryKey),
 375                 false);
 376         clickOpensContextMenu = prefs.getBoolean(getString(R.string.clickOpensContextMenuKey),
 377                 false);
 378         // if (prefs.getBoolean(getString(R.string.vibrateOnFailedSearchKey),
 379         // true)) {
 380         // vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
 381         // }
 382         Log.d(LOG, "wordList=" + wordList + ", saveOnlyFirstSubentry=" + saveOnlyFirstSubentry);
 383
 384         setDictionaryPrefs(this, dictFile, indexIndex, searchText.getText().toString());
 385     }
 386
 387     @Override
 388     protected void onResume() {
 389         super.onResume();
 390         if (PreferenceActivity.prefsMightHaveChanged) {
 391             PreferenceActivity.prefsMightHaveChanged = false;
 392             finish();
 393             startActivity(getIntent());
 394         }
 395         if (initialSearchText != null) {
 396             setSearchText(initialSearchText, true);
 397         }
 398     }
 399
 400     @Override
 401     protected void onPause() {
 402         super.onPause();
 403     }
 404
 405     private static void setDictionaryPrefs(final Context context, final File dictFile,
 406             final int indexIndex, final String searchToken) {
 407         final SharedPreferences.Editor prefs = PreferenceManager.getDefaultSharedPreferences(
 408                 context).edit();
 409         prefs.putString(C.DICT_FILE, dictFile.getPath());
 410         prefs.putInt(C.INDEX_INDEX, indexIndex);
 411         prefs.putString(C.SEARCH_TOKEN, ""); // Don't need to save search token.
 412         prefs.commit();
 413     }
 414
 415     @Override
 416     protected void onDestroy() {
 417         super.onDestroy();
 418         if (dictRaf == null) {
 419             return;
 420         }
 421
 422         final SearchOperation searchOperation = currentSearchOperation;
 423         currentSearchOperation = null;
 424
 425         // Before we close the RAF, we have to wind the current search down.
 426         if (searchOperation != null) {
 427             Log.d(LOG, "Interrupting search to shut down.");
 428             currentSearchOperation = null;
 429             searchOperation.interrupted.set(true);
 430         }
 431
 432         try {
 433             Log.d(LOG, "Closing RAF.");
 434             dictRaf.close();
 435         } catch (IOException e) {
 436             Log.e(LOG, "Failed to close dictionary", e);
 437         }
 438         dictRaf = null;
 439     }
 440
 441     // --------------------------------------------------------------------------
 442     // Buttons
 443     // --------------------------------------------------------------------------
 444
 445     private void onClearSearchTextButton() {
 446         setSearchText("", true);
 447         Log.d(LOG, "Trying to show soft keyboard.");
 448         final InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 449         manager.showSoftInput(searchText, InputMethodManager.SHOW_IMPLICIT);
 450     }
 451
 452     void updateLangButton() {
 453         // final LanguageResources languageResources =
 454         // Language.isoCodeToResources.get(index.shortName);
 455         // if (languageResources != null && languageResources.flagId != 0) {
 456         // langButton.setCompoundDrawablesWithIntrinsicBounds(0, 0,
 457         // languageResources.flagId, 0);
 458         // } else {
 459         // langButton.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 460         langButton.setText(index.shortName);
 461         // }
 462     }
 463
 464     void onLanguageButton() {
 465         if (currentSearchOperation != null) {
 466             currentSearchOperation.interrupted.set(true);
 467             currentSearchOperation = null;
 468         }
 469         changeIndexGetFocusAndResearch((indexIndex + 1) % dictionary.indices.size());
 470     }
 471
 472     void onLanguageButtonLongClick(final Context context) {
 473         final Dialog dialog = new Dialog(context);
 474         dialog.setContentView(R.layout.select_dictionary_dialog);
 475         dialog.setTitle(R.string.selectDictionary);
 476
 477         final List<DictionaryInfo> installedDicts = ((DictionaryApplication) getApplication())
 478                 .getUsableDicts();
 479
 480         ListView listView = (ListView) dialog.findViewById(android.R.id.list);
 481
 482         // final LinearLayout.LayoutParams layoutParams = new
 483         // LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
 484         // ViewGroup.LayoutParams.WRAP_CONTENT);
 485         // layoutParams.width = 0;
 486         // layoutParams.weight = 1.0f;
 487
 488         final Button button = new Button(listView.getContext());
 489         final String name = getString(R.string.dictionaryManager);
 490         button.setText(name);
 491         final IntentLauncher intentLauncher = new IntentLauncher(listView.getContext(),
 492                 DictionaryManagerActivity.getLaunchIntent()) {
 493             @Override
 494             protected void onGo() {
 495                 dialog.dismiss();
 496                 DictionaryActivity.this.finish();
 497             };
 498         };
 499         button.setOnClickListener(intentLauncher);
 500         // button.setLayoutParams(layoutParams);
 501         listView.addHeaderView(button);
 502         // listView.setHeaderDividersEnabled(true);
 503
 504         listView.setAdapter(new BaseAdapter() {
 505             @Override
 506             public View getView(int position, View convertView, ViewGroup parent) {
 507                 final LinearLayout result = new LinearLayout(parent.getContext());
 508
 509                 final DictionaryInfo dictionaryInfo = getItem(position);
 510                 for (int i = 0; i < dictionaryInfo.indexInfos.size(); ++i) {
 511                     final IndexInfo indexInfo = dictionaryInfo.indexInfos.get(i);
 512                     final Button button = new Button(parent.getContext());
 513 //                    final String name = application
 514 //                            .getDictionaryName(dictionaryInfo.uncompressedFilename);
 515                     button.setText(indexInfo.shortName);
 516                     final IntentLauncher intentLauncher = new IntentLauncher(parent.getContext(),
 517                             getLaunchIntent(application.getPath(dictionaryInfo.uncompressedFilename),
 518                                     i, searchText.getText().toString())) {
 519                         @Override
 520                         protected void onGo() {
 521                             dialog.dismiss();
 522                             DictionaryActivity.this.finish();
 523                         };
 524                     };
 525                     button.setOnClickListener(intentLauncher);
 526                     final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 527                             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 528                     layoutParams.width = 0;
 529                     layoutParams.weight = 1.0f;
 530                     button.setLayoutParams(layoutParams);
 531                     result.addView(button);
 532                 }
 533                 return result;
 534             }
 535
 536             @Override
 537             public long getItemId(int position) {
 538                 return position;
 539             }
 540
 541             @Override
 542             public DictionaryInfo getItem(int position) {
 543                 return installedDicts.get(position);
 544             }
 545
 546             @Override
 547             public int getCount() {
 548                 return installedDicts.size();
 549             }
 550         });
 551
 552         dialog.show();
 553     }
 554
 555     private void changeIndexGetFocusAndResearch(final int newIndex) {
 556         indexIndex = newIndex;
 557         index = dictionary.indices.get(indexIndex);
 558         indexAdapter = new IndexAdapter(index);
 559         Log.d(LOG, "changingIndex, newLang=" + index.longName);
 560         setListAdapter(indexAdapter);
 561         updateLangButton();
 562         searchText.requestFocus(); // Otherwise, nothing may happen.
 563         onSearchTextChange(searchText.getText().toString());
 564         setDictionaryPrefs(this, dictFile, indexIndex, searchText.getText().toString());
 565     }
 566
 567     void onUpDownButton(final boolean up) {
 568         if (isFiltered()) {
 569             return;
 570         }
 571         final int firstVisibleRow = getListView().getFirstVisiblePosition();
 572         final RowBase row = index.rows.get(firstVisibleRow);
 573         final TokenRow tokenRow = row.getTokenRow(true);
 574         final int destIndexEntry;
 575         if (up) {
 576             if (row != tokenRow) {
 577                 destIndexEntry = tokenRow.referenceIndex;
 578             } else {
 579                 destIndexEntry = Math.max(tokenRow.referenceIndex - 1, 0);
 580             }
 581         } else {
 582             // Down
 583             destIndexEntry = Math.min(tokenRow.referenceIndex + 1, index.sortedIndexEntries.size());
 584         }
 585         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 586         Log.d(LOG, "onUpDownButton, destIndexEntry=" + dest.token);
 587         searchText.removeTextChangedListener(searchTextWatcher);
 588         searchText.setText(dest.token);
 589         if (searchText.getLayout() != null) {
 590             // Surprising, but this can otherwise crash sometimes...
 591             Selection.moveToRightEdge(searchText.getText(), searchText.getLayout());
 592         }
 593         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 594         searchText.addTextChangedListener(searchTextWatcher);
 595     }
 596
 597     // --------------------------------------------------------------------------
 598     // Options Menu
 599     // --------------------------------------------------------------------------
 600
 601     final Random random = new Random();
 602
 603     @Override
 604     public boolean onCreateOptionsMenu(final Menu menu) {
 605         application.onCreateGlobalOptionsMenu(this, menu);
 606
 607         {
 608             final MenuItem randomWord = menu.add(getString(R.string.randomWord));
 609             randomWord.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 610                 public boolean onMenuItemClick(final MenuItem menuItem) {
 611                     final String word = index.sortedIndexEntries.get(random
 612                             .nextInt(index.sortedIndexEntries.size())).token;
 613                     setSearchText(word, true);
 614                     return false;
 615                 }
 616             });
 617         }
 618
 619         {
 620             final MenuItem dictionaryList = menu.add(getString(R.string.dictionaryManager));
 621             dictionaryList.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 622                 public boolean onMenuItemClick(final MenuItem menuItem) {
 623                     startActivity(DictionaryManagerActivity.getLaunchIntent());
 624                     finish();
 625                     return false;
 626                 }
 627             });
 628         }
 629
 630         {
 631             final MenuItem aboutDictionary = menu.add(getString(R.string.aboutDictionary));
 632             aboutDictionary.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 633                 public boolean onMenuItemClick(final MenuItem menuItem) {
 634                     final Context context = getListView().getContext();
 635                     final Dialog dialog = new Dialog(context);
 636                     dialog.setContentView(R.layout.about_dictionary_dialog);
 637                     final TextView textView = (TextView) dialog.findViewById(R.id.text);
 638
 639                     final String name = application.getDictionaryName(dictFile.getName());
 640                     dialog.setTitle(name);
 641
 642                     final StringBuilder builder = new StringBuilder();
 643                     final DictionaryInfo dictionaryInfo = dictionary.getDictionaryInfo();
 644                     dictionaryInfo.uncompressedBytes = dictFile.length();
 645                     if (dictionaryInfo != null) {
 646                         builder.append(dictionaryInfo.dictInfo).append("\n\n");
 647                         builder.append(getString(R.string.dictionaryPath, dictFile.getPath()))
 648                                 .append("\n");
 649                         builder.append(
 650                                 getString(R.string.dictionarySize, dictionaryInfo.uncompressedBytes))
 651                                 .append("\n");
 652                         builder.append(
 653                                 getString(R.string.dictionaryCreationTime,
 654                                         dictionaryInfo.creationMillis)).append("\n");
 655                         for (final IndexInfo indexInfo : dictionaryInfo.indexInfos) {
 656                             builder.append("\n");
 657                             builder.append(getString(R.string.indexName, indexInfo.shortName))
 658                                     .append("\n");
 659                             builder.append(
 660                                     getString(R.string.mainTokenCount, indexInfo.mainTokenCount))
 661                                     .append("\n");
 662                         }
 663                         builder.append("\n");
 664                         builder.append(getString(R.string.sources)).append("\n");
 665                         for (final EntrySource source : dictionary.sources) {
 666                             builder.append(
 667                                     getString(R.string.sourceInfo, source.getName(),
 668                                             source.getNumEntries())).append("\n");
 669                         }
 670                     }
 671                     // } else {
 672                     // builder.append(getString(R.string.invalidDictionary));
 673                     // }
 674                     textView.setText(builder.toString());
 675
 676                     dialog.show();
 677                     final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
 678                     layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
 679                     layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
 680                     dialog.getWindow().setAttributes(layoutParams);
 681                     return false;
 682                 }
 683             });
 684         }
 685
 686         return true;
 687     }
 688
 689     // --------------------------------------------------------------------------
 690     // Context Menu + clicks
 691     // --------------------------------------------------------------------------
 692
 693     @Override
 694     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
 695         AdapterContextMenuInfo adapterContextMenuInfo = (AdapterContextMenuInfo) menuInfo;
 696         final RowBase row = (RowBase) getListAdapter().getItem(adapterContextMenuInfo.position);
 697
 698         final MenuItem addToWordlist = menu.add(getString(R.string.addToWordList,
 699                 wordList.getName()));
 700         addToWordlist.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 701             public boolean onMenuItemClick(MenuItem item) {
 702                 onAppendToWordList(row);
 703                 return false;
 704             }
 705         });
 706
 707         final MenuItem copy = menu.add(android.R.string.copy);
 708         copy.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 709             public boolean onMenuItemClick(MenuItem item) {
 710                 onCopy(row);
 711                 return false;
 712             }
 713         });
 714
 715         if (selectedSpannableText != null) {
 716             final String selectedText = selectedSpannableText;
 717             final MenuItem searchForSelection = menu.add(getString(R.string.searchForSelection,
 718                     selectedSpannableText));
 719             searchForSelection.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 720                 public boolean onMenuItemClick(MenuItem item) {
 721                     int indexToUse = -1;
 722                     for (int i = 0; i < dictionary.indices.size(); ++i) {
 723                         final Index index = dictionary.indices.get(i);
 724                         if (indexPrepFinished) {
 725                             System.out.println("Doing index lookup: on " + selectedText);
 726                             final IndexEntry indexEntry = index.findExact(selectedText);
 727                             if (indexEntry != null) {
 728                                 final TokenRow tokenRow = index.rows.get(indexEntry.startRow)
 729                                         .getTokenRow(false);
 730                                 if (tokenRow != null && tokenRow.hasMainEntry) {
 731                                     indexToUse = i;
 732                                     break;
 733                                 }
 734                             }
 735                         } else {
 736                             Log.w(LOG, "Skipping findExact on index " + index.shortName);
 737                         }
 738                     }
 739                     if (indexToUse == -1) {
 740                         indexToUse = selectedSpannableIndex;
 741                     }
 742                     final boolean changeIndex = indexIndex != indexToUse;
 743                     setSearchText(selectedText, !changeIndex); // If we're not
 744                                                                // changing
 745                                                                // index, we have
 746                                                                // to
 747                                                                // triggerSearch.
 748                     if (changeIndex) {
 749                         changeIndexGetFocusAndResearch(indexToUse);
 750                     }
 751                     // Give focus back to list view because typing is done.
 752                     getListView().requestFocus();
 753                     return false;
 754                 }
 755             });
 756         }
 757
 758     }
 759
 760     @Override
 761     protected void onListItemClick(ListView l, View v, int row, long id) {
 762         defocusSearchText();
 763         if (clickOpensContextMenu && dictRaf != null) {
 764             openContextMenu(v);
 765         }
 766     }
 767
 768     void onAppendToWordList(final RowBase row) {
 769         defocusSearchText();
 770
 771         final StringBuilder rawText = new StringBuilder();
 772         rawText.append(new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(new Date())).append("\t");
 773         rawText.append(index.longName).append("\t");
 774         rawText.append(row.getTokenRow(true).getToken()).append("\t");
 775         rawText.append(row.getRawText(saveOnlyFirstSubentry));
 776         Log.d(LOG, "Writing : " + rawText);
 777
 778         try {
 779             wordList.getParentFile().mkdirs();
 780             final PrintWriter out = new PrintWriter(new FileWriter(wordList, true));
 781             out.println(rawText.toString());
 782             out.close();
 783         } catch (IOException e) {
 784             Log.e(LOG, "Unable to append to " + wordList.getAbsolutePath(), e);
 785             Toast.makeText(this,
 786                     getString(R.string.failedAddingToWordList, wordList.getAbsolutePath()),
 787                     Toast.LENGTH_LONG).show();
 788         }
 789         return;
 790     }
 791
 792     /**
 793      * Called when user clicks outside of search text, so that they can start
 794      * typing again immediately.
 795      */
 796     void defocusSearchText() {
 797         // Log.d(LOG, "defocusSearchText");
 798         // Request focus so that if we start typing again, it clears the text
 799         // input.
 800         getListView().requestFocus();
 801
 802         // Visual indication that a new keystroke will clear the search text.
 803         searchText.selectAll();
 804     }
 805
 806     @SuppressWarnings("deprecation")
 807     void onCopy(final RowBase row) {
 808         defocusSearchText();
 809
 810         Log.d(LOG, "Copy, row=" + row);
 811         final StringBuilder result = new StringBuilder();
 812         result.append(row.getRawText(false));
 813         final ClipboardManager clipboardManager = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
 814         clipboardManager.setText(result.toString());
 815         Log.d(LOG, "Copied: " + result);
 816     }
 817
 818     @Override
 819     public boolean onKeyDown(final int keyCode, final KeyEvent event) {
 820         if (event.getUnicodeChar() != 0) {
 821             if (!searchText.hasFocus()) {
 822                 setSearchText("" + (char) event.getUnicodeChar(), true);
 823             }
 824             return true;
 825         }
 826         if (keyCode == KeyEvent.KEYCODE_BACK) {
 827             // Log.d(LOG, "Clearing dictionary prefs.");
 828             // Pretend that we just autolaunched so that we won't do it again.
 829             // DictionaryManagerActivity.lastAutoLaunchMillis =
 830             // System.currentTimeMillis();
 831         }
 832         if (keyCode == KeyEvent.KEYCODE_ENTER) {
 833             Log.d(LOG, "Trying to hide soft keyboard.");
 834             final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 835             inputManager.hideSoftInputFromWindow(this.getCurrentFocus().getWindowToken(),
 836                     InputMethodManager.HIDE_NOT_ALWAYS);
 837             return true;
 838         }
 839         return super.onKeyDown(keyCode, event);
 840     }
 841
 842     private void setSearchText(final String text, final boolean triggerSearch) {
 843         if (!triggerSearch) {
 844             getListView().requestFocus();
 845         }
 846         searchText.setText(text);
 847         searchText.requestFocus();
 848         moveCursorToRight();
 849         if (triggerSearch) {
 850             onSearchTextChange(text);
 851         }
 852     }
 853
 854     private long cursorDelayMillis = 100;
 855
 856     private void moveCursorToRight() {
 857         if (searchText.getLayout() != null) {
 858             cursorDelayMillis = 100;
 859             // Surprising, but this can crash when you rotate...
 860             Selection.moveToRightEdge(searchText.getText(), searchText.getLayout());
 861         } else {
 862             uiHandler.postDelayed(new Runnable() {
 863                 @Override
 864                 public void run() {
 865                     moveCursorToRight();
 866                 }
 867             }, cursorDelayMillis);
 868             cursorDelayMillis = Math.min(10 * 1000, 2 * cursorDelayMillis);
 869         }
 870     }
 871
 872     // --------------------------------------------------------------------------
 873     // SearchOperation
 874     // --------------------------------------------------------------------------
 875
 876     private void searchFinished(final SearchOperation searchOperation) {
 877         if (searchOperation.interrupted.get()) {
 878             Log.d(LOG, "Search operation was interrupted: " + searchOperation);
 879             return;
 880         }
 881         if (searchOperation != this.currentSearchOperation) {
 882             Log.d(LOG, "Stale searchOperation finished: " + searchOperation);
 883             return;
 884         }
 885
 886         final Index.IndexEntry searchResult = searchOperation.searchResult;
 887         Log.d(LOG, "searchFinished: " + searchOperation + ", searchResult=" + searchResult);
 888
 889         currentSearchOperation = null;
 890         uiHandler.postDelayed(new Runnable() {
 891             @Override
 892             public void run() {
 893                 if (currentSearchOperation == null) {
 894                     if (searchResult != null) {
 895                         if (isFiltered()) {
 896                             clearFiltered();
 897                         }
 898                         jumpToRow(searchResult.startRow);
 899                     } else if (searchOperation.multiWordSearchResult != null) {
 900                         // Multi-row search....
 901                         setFiltered(searchOperation);
 902                     } else {
 903                         throw new IllegalStateException("This should never happen.");
 904                     }
 905                 } else {
 906                     Log.d(LOG, "More coming, waiting for currentSearchOperation.");
 907                 }
 908             }
 909         }, 20);
 910
 911     }
 912
 913     private final void jumpToRow(final int row) {
 914         setSelection(row);
 915         getListView().setSelected(true);
 916     }
 917
 918     static final Pattern WHITESPACE = Pattern.compile("\\s+");
 919
 920     final class SearchOperation implements Runnable {
 921
 922         final AtomicBoolean interrupted = new AtomicBoolean(false);
 923
 924         final String searchText;
 925
 926         List<String> searchTokens; // filled in for multiWord.
 927
 928         final Index index;
 929
 930         long searchStartMillis;
 931
 932         Index.IndexEntry searchResult;
 933
 934         List<RowBase> multiWordSearchResult;
 935
 936         boolean done = false;
 937
 938         SearchOperation(final String searchText, final Index index) {
 939             this.searchText = searchText.trim();
 940             this.index = index;
 941         }
 942
 943         public String toString() {
 944             return String.format("SearchOperation(%s,%s)", searchText, interrupted.toString());
 945         }
 946
 947         @Override
 948         public void run() {
 949             try {
 950                 searchStartMillis = System.currentTimeMillis();
 951                 final String[] searchTokenArray = WHITESPACE.split(searchText);
 952                 if (searchTokenArray.length == 1) {
 953                     searchResult = index.findInsertionPoint(searchText, interrupted);
 954                 } else {
 955                     searchTokens = Arrays.asList(searchTokenArray);
 956                     multiWordSearchResult = index.multiWordSearch(searchTokens, interrupted);
 957                 }
 958                 Log.d(LOG,
 959                         "searchText=" + searchText + ", searchDuration="
 960                                 + (System.currentTimeMillis() - searchStartMillis)
 961                                 + ", interrupted=" + interrupted.get());
 962                 if (!interrupted.get()) {
 963                     uiHandler.post(new Runnable() {
 964                         @Override
 965                         public void run() {
 966                             searchFinished(SearchOperation.this);
 967                         }
 968                     });
 969                 }
 970             } catch (Exception e) {
 971                 Log.e(LOG, "Failure during search (can happen during Activity close.");
 972             } finally {
 973                 synchronized (this) {
 974                     done = true;
 975                     this.notifyAll();
 976                 }
 977             }
 978         }
 979     }
 980
 981     // --------------------------------------------------------------------------
 982     // IndexAdapter
 983     // --------------------------------------------------------------------------
 984
 985     static ViewGroup.LayoutParams WEIGHT_1 = new LinearLayout.LayoutParams(
 986             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 1.0f);
 987
 988     static ViewGroup.LayoutParams WEIGHT_0 = new LinearLayout.LayoutParams(
 989             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 0.0f);
 990
 991     final class IndexAdapter extends BaseAdapter {
 992
 993         private static final float PADDING_DEFAULT_DP = 8;
 994
 995         private static final float PADDING_LARGE_DP = 16;
 996
 997         final Index index;
 998
 999         final List<RowBase> rows;
1000
1001         final Set<String> toHighlight;
1002
1003         private int mPaddingDefault;
1004
1005         private int mPaddingLarge;
1006
1007         IndexAdapter(final Index index) {
1008             this.index = index;
1009             rows = index.rows;
1010             this.toHighlight = null;
1011             getMetrics();
1012         }
1013
1014         IndexAdapter(final Index index, final List<RowBase> rows, final List<String> toHighlight) {
1015             this.index = index;
1016             this.rows = rows;
1017             this.toHighlight = new LinkedHashSet<String>(toHighlight);
1018             getMetrics();
1019         }
1020
1021         private void getMetrics() {
1022             // Get the screen's density scale
1023             final float scale = getResources().getDisplayMetrics().density;
1024             // Convert the dps to pixels, based on density scale
1025             mPaddingDefault = (int) (PADDING_DEFAULT_DP * scale + 0.5f);
1026             mPaddingLarge = (int) (PADDING_LARGE_DP * scale + 0.5f);
1027         }
1028
1029         @Override
1030         public int getCount() {
1031             return rows.size();
1032         }
1033
1034         @Override
1035         public RowBase getItem(int position) {
1036             return rows.get(position);
1037         }
1038
1039         @Override
1040         public long getItemId(int position) {
1041             return getItem(position).index();
1042         }
1043
1044         @Override
1045         public TableLayout getView(int position, View convertView, ViewGroup parent) {
1046             final TableLayout result;
1047             if (convertView instanceof TableLayout) {
1048                 result = (TableLayout) convertView;
1049                 result.removeAllViews();
1050             } else {
1051                 result = new TableLayout(parent.getContext());
1052             }
1053             final RowBase row = getItem(position);
1054             if (row instanceof PairEntry.Row) {
1055                 return getView(position, (PairEntry.Row) row, parent, result);
1056             } else if (row instanceof TokenRow) {
1057                 return getView((TokenRow) row, parent, result);
1058             } else if (row instanceof HtmlEntry.Row) {
1059                 return getView((HtmlEntry.Row) row, parent, result);
1060             } else {
1061                 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
1062             }
1063         }
1064
1065         private TableLayout getView(final int position, PairEntry.Row row, ViewGroup parent,
1066                 final TableLayout result) {
1067             final PairEntry entry = row.getEntry();
1068             final int rowCount = entry.pairs.size();
1069
1070             final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams();
1071             layoutParams.weight = 0.5f;
1072             layoutParams.leftMargin = mPaddingLarge;
1073
1074             for (int r = 0; r < rowCount; ++r) {
1075                 final TableRow tableRow = new TableRow(result.getContext());
1076
1077                 final TextView col1 = new TextView(tableRow.getContext());
1078                 final TextView col2 = new TextView(tableRow.getContext());
1079
1080                 // Set the columns in the table.
1081                 if (r > 0) {
1082                     final TextView bullet = new TextView(tableRow.getContext());
1083                     bullet.setText(" • ");
1084                     tableRow.addView(bullet);
1085                 }
1086                 tableRow.addView(col1, layoutParams);
1087                 final TextView margin = new TextView(tableRow.getContext());
1088                 margin.setText(" ");
1089                 tableRow.addView(margin);
1090                 if (r > 0) {
1091                     final TextView bullet = new TextView(tableRow.getContext());
1092                     bullet.setText(" • ");
1093                     tableRow.addView(bullet);
1094                 }
1095                 tableRow.addView(col2, layoutParams);
1096                 col1.setWidth(1);
1097                 col2.setWidth(1);
1098
1099                 // Set what's in the columns.
1100
1101                 final Pair pair = entry.pairs.get(r);
1102                 final String col1Text = index.swapPairEntries ? pair.lang2 : pair.lang1;
1103                 final String col2Text = index.swapPairEntries ? pair.lang1 : pair.lang2;
1104
1105                 col1.setText(col1Text, TextView.BufferType.SPANNABLE);
1106                 col2.setText(col2Text, TextView.BufferType.SPANNABLE);
1107
1108                 // Bold the token instances in col1.
1109                 final Set<String> toBold = toHighlight != null ? this.toHighlight : Collections
1110                         .singleton(row.getTokenRow(true).getToken());
1111                 final Spannable col1Spannable = (Spannable) col1.getText();
1112                 for (final String token : toBold) {
1113                     int startPos = 0;
1114                     while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
1115                         col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos, startPos
1116                                 + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1117                         startPos += token.length();
1118                     }
1119                 }
1120
1121                 createTokenLinkSpans(col1, col1Spannable, col1Text);
1122                 createTokenLinkSpans(col2, (Spannable) col2.getText(), col2Text);
1123
1124                 col1.setTypeface(typeface);
1125                 col2.setTypeface(typeface);
1126                 col1.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1127                 col2.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1128                 // col2.setBackgroundResource(theme.otherLangBg);
1129
1130                 if (index.swapPairEntries) {
1131                     col2.setOnLongClickListener(textViewLongClickListenerIndex0);
1132                     col1.setOnLongClickListener(textViewLongClickListenerIndex1);
1133                 } else {
1134                     col1.setOnLongClickListener(textViewLongClickListenerIndex0);
1135                     col2.setOnLongClickListener(textViewLongClickListenerIndex1);
1136                 }
1137
1138                 result.addView(tableRow);
1139             }
1140
1141             // Because we have a Button inside a ListView row:
1142             // http://groups.google.com/group/android-developers/browse_thread/thread/3d96af1530a7d62a?pli=1
1143             result.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
1144             result.setClickable(true);
1145             result.setFocusable(true);
1146             result.setLongClickable(true);
1147             result.setBackgroundResource(android.R.drawable.menuitem_background);
1148             result.setOnClickListener(new TextView.OnClickListener() {
1149                 @Override
1150                 public void onClick(View v) {
1151                     DictionaryActivity.this.onListItemClick(getListView(), v, position, position);
1152                 }
1153             });
1154
1155             return result;
1156         }
1157
1158         private TableLayout getView(HtmlEntry.Row row, ViewGroup parent, final TableLayout result) {
1159             final Context context = parent.getContext();
1160
1161             final HtmlEntry htmlEntry = row.getEntry();
1162
1163             // final TableRow tableRow = new TableRow(context);
1164             final LinearLayout tableRow = new LinearLayout(context);
1165             result.addView(tableRow);
1166
1167             // Text.
1168             final TextView textView = new TextView(context);
1169             textView.setText(htmlEntry.title);
1170             textView.setLayoutParams(new LinearLayout.LayoutParams(0,
1171                     ViewGroup.LayoutParams.WRAP_CONTENT, 1.0f));
1172             tableRow.addView(textView);
1173
1174             // Button.
1175             final Button button = new Button(context);
1176             button.setText("open");
1177             button.setLayoutParams(new LinearLayout.LayoutParams(
1178                     ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT, 0.0f));
1179             tableRow.addView(button);
1180
1181             button.setOnClickListener(new OnClickListener() {
1182                 @Override
1183                 public void onClick(View v) {
1184                     startActivity(HtmlDisplayActivity.getHtmlIntent(String.format(
1185                             "<html><head></head><body>%s</body></html>", htmlEntry.html)));
1186                 }
1187             });
1188
1189             return result;
1190         }
1191
1192         private TableLayout getView(TokenRow row, ViewGroup parent, final TableLayout result) {
1193             final Context context = parent.getContext();
1194
1195             final TableRow tableRow = new TableRow(result.getContext());
1196             tableRow.setBackgroundResource(row.hasMainEntry ? theme.tokenRowMainBg
1197                     : theme.tokenRowOtherBg);
1198             tableRow.setPadding(mPaddingDefault, mPaddingDefault, mPaddingDefault, 0);
1199             result.addView(tableRow);
1200
1201             final IndexEntry indexEntry = row.getIndexEntry();
1202
1203             final TextView textView = new TextView(context);
1204             textView.setText(indexEntry.token);
1205             // Doesn't work:
1206             // textView.setTextColor(android.R.color.secondary_text_light);
1207             textView.setTextAppearance(context, theme.tokenRowFg);
1208             textView.setTypeface(typeface);
1209             textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 5 * fontSizeSp / 4);
1210             TableRow.LayoutParams lp = new TableRow.LayoutParams(0);
1211             lp.weight = 1.0f;
1212             textView.setLayoutParams(lp);
1213             tableRow.addView(textView);
1214
1215
1216             if (!indexEntry.htmlEntries.isEmpty()) {
1217                 final ImageButton button = new ImageButton(context);
1218                 button.setImageResource(R.drawable.ic_menu_forward);
1219                 button.setOnClickListener(new OnClickListener() {
1220                     @Override
1221                     public void onClick(View v) {
1222                         final String html = HtmlEntry.htmlBody(indexEntry.htmlEntries);
1223                         startActivity(HtmlDisplayActivity.getHtmlIntent(String.format(
1224                                 "<html><head></head><body>%s</body></html>", html)));
1225                     }
1226                 });
1227                 tableRow.addView(button);
1228                 lp = new TableRow.LayoutParams(1);
1229                 lp.weight = 0.0f;
1230                 button.setLayoutParams(lp);
1231                 //result.setColumnStretchable(0, true);
1232                 //result.setColumnStretchable(1, false);
1233             }
1234
1235
1236             return result;
1237         }
1238
1239     }
1240
1241     static final Pattern CHAR_DASH = Pattern.compile("['\\p{L}\\p{M}\\p{N}]+");
1242
1243     private void createTokenLinkSpans(final TextView textView, final Spannable spannable,
1244             final String text) {
1245         // Saw from the source code that LinkMovementMethod sets the selection!
1246         // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.3.1_r1/android/text/method/LinkMovementMethod.java#LinkMovementMethod
1247         textView.setMovementMethod(LinkMovementMethod.getInstance());
1248         final Matcher matcher = CHAR_DASH.matcher(text);
1249         while (matcher.find()) {
1250             spannable.setSpan(new NonLinkClickableSpan(), matcher.start(), matcher.end(),
1251                     Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1252         }
1253     }
1254
1255     String selectedSpannableText = null;
1256
1257     int selectedSpannableIndex = -1;
1258
1259     @Override
1260     public boolean onTouchEvent(MotionEvent event) {
1261         selectedSpannableText = null;
1262         selectedSpannableIndex = -1;
1263         return super.onTouchEvent(event);
1264     }
1265
1266     private class TextViewLongClickListener implements OnLongClickListener {
1267         final int index;
1268
1269         private TextViewLongClickListener(final int index) {
1270             this.index = index;
1271         }
1272
1273         @Override
1274         public boolean onLongClick(final View v) {
1275             final TextView textView = (TextView) v;
1276             final int start = textView.getSelectionStart();
1277             final int end = textView.getSelectionEnd();
1278             if (start >= 0 && end >= 0) {
1279                 selectedSpannableText = textView.getText().subSequence(start, end).toString();
1280                 selectedSpannableIndex = index;
1281             }
1282             return false;
1283         }
1284     }
1285
1286     final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1287             0);
1288
1289     final TextViewLongClickListener textViewLongClickListenerIndex1 = new TextViewLongClickListener(
1290             1);
1291
1292     // --------------------------------------------------------------------------
1293     // SearchText
1294     // --------------------------------------------------------------------------
1295
1296     void onSearchTextChange(final String text) {
1297         if ("thadolina".equals(text)) {
1298             final Dialog dialog = new Dialog(getListView().getContext());
1299             dialog.setContentView(R.layout.thadolina_dialog);
1300             dialog.setTitle("Ti amo, amore mio!");
1301             final ImageView imageView = (ImageView) dialog.findViewById(R.id.thadolina_image);
1302             imageView.setOnClickListener(new OnClickListener() {
1303                 @Override
1304                 public void onClick(View v) {
1305                     final Intent intent = new Intent(Intent.ACTION_VIEW);
1306                     intent.setData(Uri.parse("https://sites.google.com/site/cfoxroxvday/vday2012"));
1307                     startActivity(intent);
1308                 }
1309             });
1310             dialog.show();
1311         }
1312         if (dictRaf == null) {
1313             Log.d(LOG, "searchText changed during shutdown, doing nothing.");
1314             return;
1315         }
1316         if (!searchText.isFocused()) {
1317             Log.d(LOG, "searchText changed without focus, doing nothing.");
1318             return;
1319         }
1320         Log.d(LOG, "onSearchTextChange: " + text);
1321         if (currentSearchOperation != null) {
1322             Log.d(LOG, "Interrupting currentSearchOperation.");
1323             currentSearchOperation.interrupted.set(true);
1324         }
1325         currentSearchOperation = new SearchOperation(text, index);
1326         searchExecutor.execute(currentSearchOperation);
1327     }
1328
1329     private class SearchTextWatcher implements TextWatcher {
1330         public void afterTextChanged(final Editable searchTextEditable) {
1331             if (searchText.hasFocus()) {
1332                 Log.d(LOG, "Search text changed with focus: " + searchText.getText());
1333                 // If they were typing to cause the change, update the UI.
1334                 onSearchTextChange(searchText.getText().toString());
1335             }
1336         }
1337
1338         public void beforeTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
1339         }
1340
1341         public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
1342         }
1343     }
1344
1345     // --------------------------------------------------------------------------
1346     // Filtered results.
1347     // --------------------------------------------------------------------------
1348
1349     boolean isFiltered() {
1350         return rowsToShow != null;
1351     }
1352
1353     void setFiltered(final SearchOperation searchOperation) {
1354         ((Button) findViewById(R.id.UpButton)).setEnabled(false);
1355         ((Button) findViewById(R.id.DownButton)).setEnabled(false);
1356         rowsToShow = searchOperation.multiWordSearchResult;
1357         setListAdapter(new IndexAdapter(index, rowsToShow, searchOperation.searchTokens));
1358     }
1359
1360     void clearFiltered() {
1361         ((Button) findViewById(R.id.UpButton)).setEnabled(true);
1362         ((Button) findViewById(R.id.DownButton)).setEnabled(true);
1363         setListAdapter(new IndexAdapter(index));
1364         rowsToShow = null;
1365     }
1366
1367 }