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         Log.d(LOG, "onResume");
 390         super.onResume();
 391         if (PreferenceActivity.prefsMightHaveChanged) {
 392             PreferenceActivity.prefsMightHaveChanged = false;
 393             finish();
 394             startActivity(getIntent());
 395         }
 396         if (initialSearchText != null) {
 397             setSearchText(initialSearchText, true);
 398         }
 399         showKeyboard();
 400     }
 401
 402     @Override
 403     protected void onPause() {
 404         super.onPause();
 405     }
 406
 407     private static void setDictionaryPrefs(final Context context, final File dictFile,
 408             final int indexIndex, final String searchToken) {
 409         final SharedPreferences.Editor prefs = PreferenceManager.getDefaultSharedPreferences(
 410                 context).edit();
 411         prefs.putString(C.DICT_FILE, dictFile.getPath());
 412         prefs.putInt(C.INDEX_INDEX, indexIndex);
 413         prefs.putString(C.SEARCH_TOKEN, ""); // Don't need to save search token.
 414         prefs.commit();
 415     }
 416
 417     @Override
 418     protected void onDestroy() {
 419         super.onDestroy();
 420         if (dictRaf == null) {
 421             return;
 422         }
 423
 424         final SearchOperation searchOperation = currentSearchOperation;
 425         currentSearchOperation = null;
 426
 427         // Before we close the RAF, we have to wind the current search down.
 428         if (searchOperation != null) {
 429             Log.d(LOG, "Interrupting search to shut down.");
 430             currentSearchOperation = null;
 431             searchOperation.interrupted.set(true);
 432         }
 433
 434         try {
 435             Log.d(LOG, "Closing RAF.");
 436             dictRaf.close();
 437         } catch (IOException e) {
 438             Log.e(LOG, "Failed to close dictionary", e);
 439         }
 440         dictRaf = null;
 441     }
 442
 443     // --------------------------------------------------------------------------
 444     // Buttons
 445     // --------------------------------------------------------------------------
 446
 447     private void onClearSearchTextButton() {
 448         setSearchText("", true);
 449         showKeyboard();
 450     }
 451
 452     private void showKeyboard() {
 453         Log.d(LOG, "Trying to show soft keyboard.");
 454         final InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 455         manager.showSoftInput(searchText, InputMethodManager.SHOW_IMPLICIT);
 456     }
 457
 458     void updateLangButton() {
 459         // final LanguageResources languageResources =
 460         // Language.isoCodeToResources.get(index.shortName);
 461         // if (languageResources != null && languageResources.flagId != 0) {
 462         // langButton.setCompoundDrawablesWithIntrinsicBounds(0, 0,
 463         // languageResources.flagId, 0);
 464         // } else {
 465         // langButton.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 466         langButton.setText(index.shortName);
 467         // }
 468     }
 469
 470     void onLanguageButton() {
 471         if (currentSearchOperation != null) {
 472             currentSearchOperation.interrupted.set(true);
 473             currentSearchOperation = null;
 474         }
 475         changeIndexGetFocusAndResearch((indexIndex + 1) % dictionary.indices.size());
 476     }
 477
 478     void onLanguageButtonLongClick(final Context context) {
 479         final Dialog dialog = new Dialog(context);
 480         dialog.setContentView(R.layout.select_dictionary_dialog);
 481         dialog.setTitle(R.string.selectDictionary);
 482
 483         final List<DictionaryInfo> installedDicts = ((DictionaryApplication) getApplication())
 484                 .getUsableDicts();
 485
 486         ListView listView = (ListView) dialog.findViewById(android.R.id.list);
 487
 488         // final LinearLayout.LayoutParams layoutParams = new
 489         // LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
 490         // ViewGroup.LayoutParams.WRAP_CONTENT);
 491         // layoutParams.width = 0;
 492         // layoutParams.weight = 1.0f;
 493
 494         final Button button = new Button(listView.getContext());
 495         final String name = getString(R.string.dictionaryManager);
 496         button.setText(name);
 497         final IntentLauncher intentLauncher = new IntentLauncher(listView.getContext(),
 498                 DictionaryManagerActivity.getLaunchIntent()) {
 499             @Override
 500             protected void onGo() {
 501                 dialog.dismiss();
 502                 DictionaryActivity.this.finish();
 503             };
 504         };
 505         button.setOnClickListener(intentLauncher);
 506         // button.setLayoutParams(layoutParams);
 507         listView.addHeaderView(button);
 508         // listView.setHeaderDividersEnabled(true);
 509
 510         listView.setAdapter(new BaseAdapter() {
 511             @Override
 512             public View getView(int position, View convertView, ViewGroup parent) {
 513                 final LinearLayout result = new LinearLayout(parent.getContext());
 514
 515                 final DictionaryInfo dictionaryInfo = getItem(position);
 516                 for (int i = 0; i < dictionaryInfo.indexInfos.size(); ++i) {
 517                     final IndexInfo indexInfo = dictionaryInfo.indexInfos.get(i);
 518                     final Button button = new Button(parent.getContext());
 519 //                    final String name = application
 520 //                            .getDictionaryName(dictionaryInfo.uncompressedFilename);
 521                     button.setText(indexInfo.shortName);
 522                     final IntentLauncher intentLauncher = new IntentLauncher(parent.getContext(),
 523                             getLaunchIntent(application.getPath(dictionaryInfo.uncompressedFilename),
 524                                     i, searchText.getText().toString())) {
 525                         @Override
 526                         protected void onGo() {
 527                             dialog.dismiss();
 528                             DictionaryActivity.this.finish();
 529                         };
 530                     };
 531                     button.setOnClickListener(intentLauncher);
 532                     final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 533                             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 534                     layoutParams.width = 0;
 535                     layoutParams.weight = 1.0f;
 536                     button.setLayoutParams(layoutParams);
 537                     result.addView(button);
 538
 539                     if (i > 0) {
 540                         final TextView dash = new TextView(parent.getContext());
 541                         dash.setText("-");
 542                         result.addView(dash);
 543                     }
 544                 }
 545                 return result;
 546             }
 547
 548             @Override
 549             public long getItemId(int position) {
 550                 return position;
 551             }
 552
 553             @Override
 554             public DictionaryInfo getItem(int position) {
 555                 return installedDicts.get(position);
 556             }
 557
 558             @Override
 559             public int getCount() {
 560                 return installedDicts.size();
 561             }
 562         });
 563
 564         dialog.show();
 565     }
 566
 567     private void changeIndexGetFocusAndResearch(final int newIndex) {
 568         indexIndex = newIndex;
 569         index = dictionary.indices.get(indexIndex);
 570         indexAdapter = new IndexAdapter(index);
 571         Log.d(LOG, "changingIndex, newLang=" + index.longName);
 572         setListAdapter(indexAdapter);
 573         updateLangButton();
 574         searchText.requestFocus(); // Otherwise, nothing may happen.
 575         onSearchTextChange(searchText.getText().toString());
 576         setDictionaryPrefs(this, dictFile, indexIndex, searchText.getText().toString());
 577     }
 578
 579     void onUpDownButton(final boolean up) {
 580         if (isFiltered()) {
 581             return;
 582         }
 583         final int firstVisibleRow = getListView().getFirstVisiblePosition();
 584         final RowBase row = index.rows.get(firstVisibleRow);
 585         final TokenRow tokenRow = row.getTokenRow(true);
 586         final int destIndexEntry;
 587         if (up) {
 588             if (row != tokenRow) {
 589                 destIndexEntry = tokenRow.referenceIndex;
 590             } else {
 591                 destIndexEntry = Math.max(tokenRow.referenceIndex - 1, 0);
 592             }
 593         } else {
 594             // Down
 595             destIndexEntry = Math.min(tokenRow.referenceIndex + 1, index.sortedIndexEntries.size());
 596         }
 597         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 598         Log.d(LOG, "onUpDownButton, destIndexEntry=" + dest.token);
 599         searchText.removeTextChangedListener(searchTextWatcher);
 600         searchText.setText(dest.token);
 601         if (searchText.getLayout() != null) {
 602             // Surprising, but this can otherwise crash sometimes...
 603             Selection.moveToRightEdge(searchText.getText(), searchText.getLayout());
 604         }
 605         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 606         searchText.addTextChangedListener(searchTextWatcher);
 607     }
 608
 609     // --------------------------------------------------------------------------
 610     // Options Menu
 611     // --------------------------------------------------------------------------
 612
 613     final Random random = new Random();
 614
 615     @Override
 616     public boolean onCreateOptionsMenu(final Menu menu) {
 617         application.onCreateGlobalOptionsMenu(this, menu);
 618
 619         {
 620             final MenuItem randomWord = menu.add(getString(R.string.randomWord));
 621             randomWord.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 622                 public boolean onMenuItemClick(final MenuItem menuItem) {
 623                     final String word = index.sortedIndexEntries.get(random
 624                             .nextInt(index.sortedIndexEntries.size())).token;
 625                     setSearchText(word, true);
 626                     return false;
 627                 }
 628             });
 629         }
 630
 631         {
 632             final MenuItem dictionaryList = menu.add(getString(R.string.dictionaryManager));
 633             dictionaryList.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 634                 public boolean onMenuItemClick(final MenuItem menuItem) {
 635                     startActivity(DictionaryManagerActivity.getLaunchIntent());
 636                     finish();
 637                     return false;
 638                 }
 639             });
 640         }
 641
 642         {
 643             final MenuItem aboutDictionary = menu.add(getString(R.string.aboutDictionary));
 644             aboutDictionary.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 645                 public boolean onMenuItemClick(final MenuItem menuItem) {
 646                     final Context context = getListView().getContext();
 647                     final Dialog dialog = new Dialog(context);
 648                     dialog.setContentView(R.layout.about_dictionary_dialog);
 649                     final TextView textView = (TextView) dialog.findViewById(R.id.text);
 650
 651                     final String name = application.getDictionaryName(dictFile.getName());
 652                     dialog.setTitle(name);
 653
 654                     final StringBuilder builder = new StringBuilder();
 655                     final DictionaryInfo dictionaryInfo = dictionary.getDictionaryInfo();
 656                     dictionaryInfo.uncompressedBytes = dictFile.length();
 657                     if (dictionaryInfo != null) {
 658                         builder.append(dictionaryInfo.dictInfo).append("\n\n");
 659                         builder.append(getString(R.string.dictionaryPath, dictFile.getPath()))
 660                                 .append("\n");
 661                         builder.append(
 662                                 getString(R.string.dictionarySize, dictionaryInfo.uncompressedBytes))
 663                                 .append("\n");
 664                         builder.append(
 665                                 getString(R.string.dictionaryCreationTime,
 666                                         dictionaryInfo.creationMillis)).append("\n");
 667                         for (final IndexInfo indexInfo : dictionaryInfo.indexInfos) {
 668                             builder.append("\n");
 669                             builder.append(getString(R.string.indexName, indexInfo.shortName))
 670                                     .append("\n");
 671                             builder.append(
 672                                     getString(R.string.mainTokenCount, indexInfo.mainTokenCount))
 673                                     .append("\n");
 674                         }
 675                         builder.append("\n");
 676                         builder.append(getString(R.string.sources)).append("\n");
 677                         for (final EntrySource source : dictionary.sources) {
 678                             builder.append(
 679                                     getString(R.string.sourceInfo, source.getName(),
 680                                             source.getNumEntries())).append("\n");
 681                         }
 682                     }
 683                     // } else {
 684                     // builder.append(getString(R.string.invalidDictionary));
 685                     // }
 686                     textView.setText(builder.toString());
 687
 688                     dialog.show();
 689                     final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
 690                     layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
 691                     layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
 692                     dialog.getWindow().setAttributes(layoutParams);
 693                     return false;
 694                 }
 695             });
 696         }
 697
 698         return true;
 699     }
 700
 701     // --------------------------------------------------------------------------
 702     // Context Menu + clicks
 703     // --------------------------------------------------------------------------
 704
 705     @Override
 706     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
 707         AdapterContextMenuInfo adapterContextMenuInfo = (AdapterContextMenuInfo) menuInfo;
 708         final RowBase row = (RowBase) getListAdapter().getItem(adapterContextMenuInfo.position);
 709
 710         final MenuItem addToWordlist = menu.add(getString(R.string.addToWordList,
 711                 wordList.getName()));
 712         addToWordlist.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 713             public boolean onMenuItemClick(MenuItem item) {
 714                 onAppendToWordList(row);
 715                 return false;
 716             }
 717         });
 718
 719         final MenuItem copy = menu.add(android.R.string.copy);
 720         copy.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 721             public boolean onMenuItemClick(MenuItem item) {
 722                 onCopy(row);
 723                 return false;
 724             }
 725         });
 726
 727         if (selectedSpannableText != null) {
 728             final String selectedText = selectedSpannableText;
 729             final MenuItem searchForSelection = menu.add(getString(R.string.searchForSelection,
 730                     selectedSpannableText));
 731             searchForSelection.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 732                 public boolean onMenuItemClick(MenuItem item) {
 733                     int indexToUse = -1;
 734                     for (int i = 0; i < dictionary.indices.size(); ++i) {
 735                         final Index index = dictionary.indices.get(i);
 736                         if (indexPrepFinished) {
 737                             System.out.println("Doing index lookup: on " + selectedText);
 738                             final IndexEntry indexEntry = index.findExact(selectedText);
 739                             if (indexEntry != null) {
 740                                 final TokenRow tokenRow = index.rows.get(indexEntry.startRow)
 741                                         .getTokenRow(false);
 742                                 if (tokenRow != null && tokenRow.hasMainEntry) {
 743                                     indexToUse = i;
 744                                     break;
 745                                 }
 746                             }
 747                         } else {
 748                             Log.w(LOG, "Skipping findExact on index " + index.shortName);
 749                         }
 750                     }
 751                     if (indexToUse == -1) {
 752                         indexToUse = selectedSpannableIndex;
 753                     }
 754                     final boolean changeIndex = indexIndex != indexToUse;
 755                     setSearchText(selectedText, !changeIndex); // If we're not
 756                                                                // changing
 757                                                                // index, we have
 758                                                                // to
 759                                                                // triggerSearch.
 760                     if (changeIndex) {
 761                         changeIndexGetFocusAndResearch(indexToUse);
 762                     }
 763                     // Give focus back to list view because typing is done.
 764                     getListView().requestFocus();
 765                     return false;
 766                 }
 767             });
 768         }
 769
 770     }
 771
 772     @Override
 773     protected void onListItemClick(ListView l, View v, int row, long id) {
 774         defocusSearchText();
 775         if (clickOpensContextMenu && dictRaf != null) {
 776             openContextMenu(v);
 777         }
 778     }
 779
 780     void onAppendToWordList(final RowBase row) {
 781         defocusSearchText();
 782
 783         final StringBuilder rawText = new StringBuilder();
 784         rawText.append(new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(new Date())).append("\t");
 785         rawText.append(index.longName).append("\t");
 786         rawText.append(row.getTokenRow(true).getToken()).append("\t");
 787         rawText.append(row.getRawText(saveOnlyFirstSubentry));
 788         Log.d(LOG, "Writing : " + rawText);
 789
 790         try {
 791             wordList.getParentFile().mkdirs();
 792             final PrintWriter out = new PrintWriter(new FileWriter(wordList, true));
 793             out.println(rawText.toString());
 794             out.close();
 795         } catch (IOException e) {
 796             Log.e(LOG, "Unable to append to " + wordList.getAbsolutePath(), e);
 797             Toast.makeText(this,
 798                     getString(R.string.failedAddingToWordList, wordList.getAbsolutePath()),
 799                     Toast.LENGTH_LONG).show();
 800         }
 801         return;
 802     }
 803
 804     /**
 805      * Called when user clicks outside of search text, so that they can start
 806      * typing again immediately.
 807      */
 808     void defocusSearchText() {
 809         // Log.d(LOG, "defocusSearchText");
 810         // Request focus so that if we start typing again, it clears the text
 811         // input.
 812         getListView().requestFocus();
 813
 814         // Visual indication that a new keystroke will clear the search text.
 815         searchText.selectAll();
 816     }
 817
 818     @SuppressWarnings("deprecation")
 819     void onCopy(final RowBase row) {
 820         defocusSearchText();
 821
 822         Log.d(LOG, "Copy, row=" + row);
 823         final StringBuilder result = new StringBuilder();
 824         result.append(row.getRawText(false));
 825         final ClipboardManager clipboardManager = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
 826         clipboardManager.setText(result.toString());
 827         Log.d(LOG, "Copied: " + result);
 828     }
 829
 830     @Override
 831     public boolean onKeyDown(final int keyCode, final KeyEvent event) {
 832         if (event.getUnicodeChar() != 0) {
 833             if (!searchText.hasFocus()) {
 834                 setSearchText("" + (char) event.getUnicodeChar(), true);
 835             }
 836             return true;
 837         }
 838         if (keyCode == KeyEvent.KEYCODE_BACK) {
 839             // Log.d(LOG, "Clearing dictionary prefs.");
 840             // Pretend that we just autolaunched so that we won't do it again.
 841             // DictionaryManagerActivity.lastAutoLaunchMillis =
 842             // System.currentTimeMillis();
 843         }
 844         if (keyCode == KeyEvent.KEYCODE_ENTER) {
 845             Log.d(LOG, "Trying to hide soft keyboard.");
 846             final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 847             inputManager.hideSoftInputFromWindow(this.getCurrentFocus().getWindowToken(),
 848                     InputMethodManager.HIDE_NOT_ALWAYS);
 849             return true;
 850         }
 851         return super.onKeyDown(keyCode, event);
 852     }
 853
 854     private void setSearchText(final String text, final boolean triggerSearch) {
 855         if (!triggerSearch) {
 856             getListView().requestFocus();
 857         }
 858         searchText.setText(text);
 859         searchText.requestFocus();
 860         moveCursorToRight();
 861         if (triggerSearch) {
 862             onSearchTextChange(text);
 863         }
 864     }
 865
 866     private long cursorDelayMillis = 100;
 867
 868     private void moveCursorToRight() {
 869         if (searchText.getLayout() != null) {
 870             cursorDelayMillis = 100;
 871             // Surprising, but this can crash when you rotate...
 872             Selection.moveToRightEdge(searchText.getText(), searchText.getLayout());
 873         } else {
 874             uiHandler.postDelayed(new Runnable() {
 875                 @Override
 876                 public void run() {
 877                     moveCursorToRight();
 878                 }
 879             }, cursorDelayMillis);
 880             cursorDelayMillis = Math.min(10 * 1000, 2 * cursorDelayMillis);
 881         }
 882     }
 883
 884     // --------------------------------------------------------------------------
 885     // SearchOperation
 886     // --------------------------------------------------------------------------
 887
 888     private void searchFinished(final SearchOperation searchOperation) {
 889         if (searchOperation.interrupted.get()) {
 890             Log.d(LOG, "Search operation was interrupted: " + searchOperation);
 891             return;
 892         }
 893         if (searchOperation != this.currentSearchOperation) {
 894             Log.d(LOG, "Stale searchOperation finished: " + searchOperation);
 895             return;
 896         }
 897
 898         final Index.IndexEntry searchResult = searchOperation.searchResult;
 899         Log.d(LOG, "searchFinished: " + searchOperation + ", searchResult=" + searchResult);
 900
 901         currentSearchOperation = null;
 902         uiHandler.postDelayed(new Runnable() {
 903             @Override
 904             public void run() {
 905                 if (currentSearchOperation == null) {
 906                     if (searchResult != null) {
 907                         if (isFiltered()) {
 908                             clearFiltered();
 909                         }
 910                         jumpToRow(searchResult.startRow);
 911                     } else if (searchOperation.multiWordSearchResult != null) {
 912                         // Multi-row search....
 913                         setFiltered(searchOperation);
 914                     } else {
 915                         throw new IllegalStateException("This should never happen.");
 916                     }
 917                 } else {
 918                     Log.d(LOG, "More coming, waiting for currentSearchOperation.");
 919                 }
 920             }
 921         }, 20);
 922
 923     }
 924
 925     private final void jumpToRow(final int row) {
 926         setSelection(row);
 927         getListView().setSelected(true);
 928     }
 929
 930     static final Pattern WHITESPACE = Pattern.compile("\\s+");
 931
 932     final class SearchOperation implements Runnable {
 933
 934         final AtomicBoolean interrupted = new AtomicBoolean(false);
 935
 936         final String searchText;
 937
 938         List<String> searchTokens; // filled in for multiWord.
 939
 940         final Index index;
 941
 942         long searchStartMillis;
 943
 944         Index.IndexEntry searchResult;
 945
 946         List<RowBase> multiWordSearchResult;
 947
 948         boolean done = false;
 949
 950         SearchOperation(final String searchText, final Index index) {
 951             this.searchText = searchText.trim();
 952             this.index = index;
 953         }
 954
 955         public String toString() {
 956             return String.format("SearchOperation(%s,%s)", searchText, interrupted.toString());
 957         }
 958
 959         @Override
 960         public void run() {
 961             try {
 962                 searchStartMillis = System.currentTimeMillis();
 963                 final String[] searchTokenArray = WHITESPACE.split(searchText);
 964                 if (searchTokenArray.length == 1) {
 965                     searchResult = index.findInsertionPoint(searchText, interrupted);
 966                 } else {
 967                     searchTokens = Arrays.asList(searchTokenArray);
 968                     multiWordSearchResult = index.multiWordSearch(searchTokens, interrupted);
 969                 }
 970                 Log.d(LOG,
 971                         "searchText=" + searchText + ", searchDuration="
 972                                 + (System.currentTimeMillis() - searchStartMillis)
 973                                 + ", interrupted=" + interrupted.get());
 974                 if (!interrupted.get()) {
 975                     uiHandler.post(new Runnable() {
 976                         @Override
 977                         public void run() {
 978                             searchFinished(SearchOperation.this);
 979                         }
 980                     });
 981                 }
 982             } catch (Exception e) {
 983                 Log.e(LOG, "Failure during search (can happen during Activity close.");
 984             } finally {
 985                 synchronized (this) {
 986                     done = true;
 987                     this.notifyAll();
 988                 }
 989             }
 990         }
 991     }
 992
 993     // --------------------------------------------------------------------------
 994     // IndexAdapter
 995     // --------------------------------------------------------------------------
 996
 997     static ViewGroup.LayoutParams WEIGHT_1 = new LinearLayout.LayoutParams(
 998             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 1.0f);
 999
1000     static ViewGroup.LayoutParams WEIGHT_0 = new LinearLayout.LayoutParams(
1001             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 0.0f);
1002
1003     final class IndexAdapter extends BaseAdapter {
1004
1005         private static final float PADDING_DEFAULT_DP = 8;
1006
1007         private static final float PADDING_LARGE_DP = 16;
1008
1009         final Index index;
1010
1011         final List<RowBase> rows;
1012
1013         final Set<String> toHighlight;
1014
1015         private int mPaddingDefault;
1016
1017         private int mPaddingLarge;
1018
1019         IndexAdapter(final Index index) {
1020             this.index = index;
1021             rows = index.rows;
1022             this.toHighlight = null;
1023             getMetrics();
1024         }
1025
1026         IndexAdapter(final Index index, final List<RowBase> rows, final List<String> toHighlight) {
1027             this.index = index;
1028             this.rows = rows;
1029             this.toHighlight = new LinkedHashSet<String>(toHighlight);
1030             getMetrics();
1031         }
1032
1033         private void getMetrics() {
1034             // Get the screen's density scale
1035             final float scale = getResources().getDisplayMetrics().density;
1036             // Convert the dps to pixels, based on density scale
1037             mPaddingDefault = (int) (PADDING_DEFAULT_DP * scale + 0.5f);
1038             mPaddingLarge = (int) (PADDING_LARGE_DP * scale + 0.5f);
1039         }
1040
1041         @Override
1042         public int getCount() {
1043             return rows.size();
1044         }
1045
1046         @Override
1047         public RowBase getItem(int position) {
1048             return rows.get(position);
1049         }
1050
1051         @Override
1052         public long getItemId(int position) {
1053             return getItem(position).index();
1054         }
1055
1056         @Override
1057         public TableLayout getView(int position, View convertView, ViewGroup parent) {
1058             final TableLayout result;
1059             if (convertView instanceof TableLayout) {
1060                 result = (TableLayout) convertView;
1061                 result.removeAllViews();
1062             } else {
1063                 result = new TableLayout(parent.getContext());
1064             }
1065             final RowBase row = getItem(position);
1066             if (row instanceof PairEntry.Row) {
1067                 return getView(position, (PairEntry.Row) row, parent, result);
1068             } else if (row instanceof TokenRow) {
1069                 return getView((TokenRow) row, parent, result);
1070             } else if (row instanceof HtmlEntry.Row) {
1071                 return getView((HtmlEntry.Row) row, parent, result);
1072             } else {
1073                 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
1074             }
1075         }
1076
1077         private TableLayout getView(final int position, PairEntry.Row row, ViewGroup parent,
1078                 final TableLayout result) {
1079             final PairEntry entry = row.getEntry();
1080             final int rowCount = entry.pairs.size();
1081
1082             final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams();
1083             layoutParams.weight = 0.5f;
1084             layoutParams.leftMargin = mPaddingLarge;
1085
1086             for (int r = 0; r < rowCount; ++r) {
1087                 final TableRow tableRow = new TableRow(result.getContext());
1088
1089                 final TextView col1 = new TextView(tableRow.getContext());
1090                 final TextView col2 = new TextView(tableRow.getContext());
1091
1092                 // Set the columns in the table.
1093                 if (r > 0) {
1094                     final TextView bullet = new TextView(tableRow.getContext());
1095                     bullet.setText(" • ");
1096                     tableRow.addView(bullet);
1097                 }
1098                 tableRow.addView(col1, layoutParams);
1099                 final TextView margin = new TextView(tableRow.getContext());
1100                 margin.setText(" ");
1101                 tableRow.addView(margin);
1102                 if (r > 0) {
1103                     final TextView bullet = new TextView(tableRow.getContext());
1104                     bullet.setText(" • ");
1105                     tableRow.addView(bullet);
1106                 }
1107                 tableRow.addView(col2, layoutParams);
1108                 col1.setWidth(1);
1109                 col2.setWidth(1);
1110
1111                 // Set what's in the columns.
1112
1113                 final Pair pair = entry.pairs.get(r);
1114                 final String col1Text = index.swapPairEntries ? pair.lang2 : pair.lang1;
1115                 final String col2Text = index.swapPairEntries ? pair.lang1 : pair.lang2;
1116
1117                 col1.setText(col1Text, TextView.BufferType.SPANNABLE);
1118                 col2.setText(col2Text, TextView.BufferType.SPANNABLE);
1119
1120                 // Bold the token instances in col1.
1121                 final Set<String> toBold = toHighlight != null ? this.toHighlight : Collections
1122                         .singleton(row.getTokenRow(true).getToken());
1123                 final Spannable col1Spannable = (Spannable) col1.getText();
1124                 for (final String token : toBold) {
1125                     int startPos = 0;
1126                     while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
1127                         col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos, startPos
1128                                 + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1129                         startPos += token.length();
1130                     }
1131                 }
1132
1133                 createTokenLinkSpans(col1, col1Spannable, col1Text);
1134                 createTokenLinkSpans(col2, (Spannable) col2.getText(), col2Text);
1135
1136                 col1.setTypeface(typeface);
1137                 col2.setTypeface(typeface);
1138                 col1.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1139                 col2.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1140                 // col2.setBackgroundResource(theme.otherLangBg);
1141
1142                 if (index.swapPairEntries) {
1143                     col2.setOnLongClickListener(textViewLongClickListenerIndex0);
1144                     col1.setOnLongClickListener(textViewLongClickListenerIndex1);
1145                 } else {
1146                     col1.setOnLongClickListener(textViewLongClickListenerIndex0);
1147                     col2.setOnLongClickListener(textViewLongClickListenerIndex1);
1148                 }
1149
1150                 result.addView(tableRow);
1151             }
1152
1153             // Because we have a Button inside a ListView row:
1154             // http://groups.google.com/group/android-developers/browse_thread/thread/3d96af1530a7d62a?pli=1
1155             result.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
1156             result.setClickable(true);
1157             result.setFocusable(true);
1158             result.setLongClickable(true);
1159             result.setBackgroundResource(android.R.drawable.menuitem_background);
1160             result.setOnClickListener(new TextView.OnClickListener() {
1161                 @Override
1162                 public void onClick(View v) {
1163                     DictionaryActivity.this.onListItemClick(getListView(), v, position, position);
1164                 }
1165             });
1166
1167             return result;
1168         }
1169
1170         private TableLayout getPossibleHtmlEntryView(final boolean isTokenRow, final String text, final boolean hasMainEntry, final List<HtmlEntry> htmlEntries, final String htmlTextToHighlight, ViewGroup parent, final TableLayout result) {
1171             final Context context = parent.getContext();
1172
1173             final TableRow tableRow = new TableRow(result.getContext());
1174             tableRow.setBackgroundResource(hasMainEntry ? theme.tokenRowMainBg
1175                     : theme.tokenRowOtherBg);
1176             if (isTokenRow) {
1177                 tableRow.setPadding(mPaddingDefault, mPaddingDefault, mPaddingDefault, 0);
1178             } else {
1179                 tableRow.setPadding(mPaddingLarge, mPaddingDefault, mPaddingDefault, 0);
1180             }
1181             result.addView(tableRow);
1182
1183             final TextView textView = new TextView(context);
1184             textView.setText(text);
1185             // Doesn't work:
1186             // textView.setTextColor(android.R.color.secondary_text_light);
1187             textView.setTypeface(typeface);
1188             TableRow.LayoutParams lp = new TableRow.LayoutParams(0);
1189             if (isTokenRow) {
1190                 textView.setTextAppearance(context, theme.tokenRowFg);
1191                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 4 * fontSizeSp / 3);
1192             } else {
1193                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1194             }
1195             lp.weight = 1.0f;
1196
1197             textView.setLayoutParams(lp);
1198             tableRow.addView(textView);
1199
1200
1201             if (!htmlEntries.isEmpty()) {
1202                 final ImageButton button = new ImageButton(context);
1203                 button.setImageResource(R.drawable.ic_menu_forward);
1204                 button.setOnClickListener(new OnClickListener() {
1205                     @Override
1206                     public void onClick(View v) {
1207                         final String html = HtmlEntry.htmlBody(htmlEntries);
1208                         startActivity(HtmlDisplayActivity.getHtmlIntent(String.format(
1209                                 "<html><head></head><body>%s</body></html>", html), htmlTextToHighlight, false));
1210                     }
1211                 });
1212                 tableRow.addView(button);
1213                 lp = new TableRow.LayoutParams(1);
1214                 lp.weight = 0.0f;
1215                 button.setLayoutParams(lp);
1216                 //result.setColumnStretchable(0, true);
1217                 //result.setColumnStretchable(1, false);
1218             }
1219             return result;
1220         }
1221
1222         private TableLayout getView(TokenRow row, ViewGroup parent, final TableLayout result) {
1223             final IndexEntry indexEntry = row.getIndexEntry();
1224             return getPossibleHtmlEntryView(true, indexEntry.token, row.hasMainEntry, indexEntry.htmlEntries, null, parent, result);
1225         }
1226
1227         private TableLayout getView(HtmlEntry.Row row, ViewGroup parent, final TableLayout result) {
1228             final HtmlEntry htmlEntry = row.getEntry();
1229             final TokenRow tokenRow = row.getTokenRow(true);
1230             return getPossibleHtmlEntryView(false, getString(R.string.seeAlso, htmlEntry.title), false, Collections.singletonList(htmlEntry), tokenRow.getToken(), parent, result);
1231         }
1232
1233
1234     }
1235
1236
1237
1238     static final Pattern CHAR_DASH = Pattern.compile("['\\p{L}\\p{M}\\p{N}]+");
1239
1240     private void createTokenLinkSpans(final TextView textView, final Spannable spannable,
1241             final String text) {
1242         // Saw from the source code that LinkMovementMethod sets the selection!
1243         // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.3.1_r1/android/text/method/LinkMovementMethod.java#LinkMovementMethod
1244         textView.setMovementMethod(LinkMovementMethod.getInstance());
1245         final Matcher matcher = CHAR_DASH.matcher(text);
1246         while (matcher.find()) {
1247             spannable.setSpan(new NonLinkClickableSpan(), matcher.start(), matcher.end(),
1248                     Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1249         }
1250     }
1251
1252     String selectedSpannableText = null;
1253
1254     int selectedSpannableIndex = -1;
1255
1256     @Override
1257     public boolean onTouchEvent(MotionEvent event) {
1258         selectedSpannableText = null;
1259         selectedSpannableIndex = -1;
1260         return super.onTouchEvent(event);
1261     }
1262
1263     private class TextViewLongClickListener implements OnLongClickListener {
1264         final int index;
1265
1266         private TextViewLongClickListener(final int index) {
1267             this.index = index;
1268         }
1269
1270         @Override
1271         public boolean onLongClick(final View v) {
1272             final TextView textView = (TextView) v;
1273             final int start = textView.getSelectionStart();
1274             final int end = textView.getSelectionEnd();
1275             if (start >= 0 && end >= 0) {
1276                 selectedSpannableText = textView.getText().subSequence(start, end).toString();
1277                 selectedSpannableIndex = index;
1278             }
1279             return false;
1280         }
1281     }
1282
1283     final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1284             0);
1285
1286     final TextViewLongClickListener textViewLongClickListenerIndex1 = new TextViewLongClickListener(
1287             1);
1288
1289     // --------------------------------------------------------------------------
1290     // SearchText
1291     // --------------------------------------------------------------------------
1292
1293     void onSearchTextChange(final String text) {
1294         if ("thadolina".equals(text)) {
1295             final Dialog dialog = new Dialog(getListView().getContext());
1296             dialog.setContentView(R.layout.thadolina_dialog);
1297             dialog.setTitle("Ti amo, amore mio!");
1298             final ImageView imageView = (ImageView) dialog.findViewById(R.id.thadolina_image);
1299             imageView.setOnClickListener(new OnClickListener() {
1300                 @Override
1301                 public void onClick(View v) {
1302                     final Intent intent = new Intent(Intent.ACTION_VIEW);
1303                     intent.setData(Uri.parse("https://sites.google.com/site/cfoxroxvday/vday2012"));
1304                     startActivity(intent);
1305                 }
1306             });
1307             dialog.show();
1308         }
1309         if (dictRaf == null) {
1310             Log.d(LOG, "searchText changed during shutdown, doing nothing.");
1311             return;
1312         }
1313         if (!searchText.isFocused()) {
1314             Log.d(LOG, "searchText changed without focus, doing nothing.");
1315             return;
1316         }
1317         Log.d(LOG, "onSearchTextChange: " + text);
1318         if (currentSearchOperation != null) {
1319             Log.d(LOG, "Interrupting currentSearchOperation.");
1320             currentSearchOperation.interrupted.set(true);
1321         }
1322         currentSearchOperation = new SearchOperation(text, index);
1323         searchExecutor.execute(currentSearchOperation);
1324     }
1325
1326     private class SearchTextWatcher implements TextWatcher {
1327         public void afterTextChanged(final Editable searchTextEditable) {
1328             if (searchText.hasFocus()) {
1329                 Log.d(LOG, "Search text changed with focus: " + searchText.getText());
1330                 // If they were typing to cause the change, update the UI.
1331                 onSearchTextChange(searchText.getText().toString());
1332             }
1333         }
1334
1335         public void beforeTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
1336         }
1337
1338         public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
1339         }
1340     }
1341
1342     // --------------------------------------------------------------------------
1343     // Filtered results.
1344     // --------------------------------------------------------------------------
1345
1346     boolean isFiltered() {
1347         return rowsToShow != null;
1348     }
1349
1350     void setFiltered(final SearchOperation searchOperation) {
1351         ((ImageButton) findViewById(R.id.UpButton)).setEnabled(false);
1352         ((ImageButton) findViewById(R.id.DownButton)).setEnabled(false);
1353         rowsToShow = searchOperation.multiWordSearchResult;
1354         setListAdapter(new IndexAdapter(index, rowsToShow, searchOperation.searchTokens));
1355     }
1356
1357     void clearFiltered() {
1358         ((ImageButton) findViewById(R.id.UpButton)).setEnabled(true);
1359         ((ImageButton) findViewById(R.id.DownButton)).setEnabled(true);
1360         setListAdapter(new IndexAdapter(index));
1361         rowsToShow = null;
1362     }
1363
1364 }