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

   1 // Copyright 2011 Google Inc. All Rights Reserved.
   2 // Some Parts Copyright 2013 Dominik Köppl
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 package com.hughes.android.dictionary;
  16
  17 import android.annotation.SuppressLint;
  18 import android.app.Dialog;
  19 import android.app.SearchManager;
  20 import android.content.Context;
  21 import android.content.Intent;
  22 import android.content.SharedPreferences;
  23 import android.content.pm.PackageManager;
  24 import android.graphics.Color;
  25 import android.graphics.Typeface;
  26 import android.net.Uri;
  27 import android.os.Bundle;
  28 import android.os.Handler;
  29 import android.preference.PreferenceManager;
  30 import android.speech.tts.TextToSpeech;
  31 import android.speech.tts.TextToSpeech.OnInitListener;
  32 import android.support.design.widget.FloatingActionButton;
  33 import android.support.v4.view.MenuItemCompat;
  34 import android.support.v7.app.ActionBar;
  35 import android.support.v7.app.ActionBarActivity;
  36 import android.support.v7.widget.SearchView;
  37 import android.support.v7.widget.SearchView.OnQueryTextListener;
  38 import android.support.v7.widget.Toolbar;
  39 import android.text.ClipboardManager;
  40 import android.text.InputType;
  41 import android.text.Spannable;
  42 import android.text.SpannableString;
  43 import android.text.method.LinkMovementMethod;
  44 import android.text.style.ClickableSpan;
  45 import android.text.style.StyleSpan;
  46 import android.util.DisplayMetrics;
  47 import android.util.Log;
  48 import android.util.TypedValue;
  49 import android.view.ContextMenu;
  50 import android.view.ContextMenu.ContextMenuInfo;
  51 import android.view.Gravity;
  52 import android.view.KeyEvent;
  53 import android.view.Menu;
  54 import android.view.MenuItem;
  55 import android.view.MenuItem.OnMenuItemClickListener;
  56 import android.view.MotionEvent;
  57 import android.view.View;
  58 import android.view.View.OnClickListener;
  59 import android.view.View.OnLongClickListener;
  60 import android.view.ViewGroup;
  61 import android.view.WindowManager;
  62 import android.view.inputmethod.EditorInfo;
  63 import android.view.inputmethod.InputMethodManager;
  64 import android.widget.AdapterView;
  65 import android.widget.AdapterView.AdapterContextMenuInfo;
  66 import android.widget.AdapterView.OnItemClickListener;
  67 import android.widget.BaseAdapter;
  68 import android.widget.Button;
  69 import android.widget.FrameLayout;
  70 import android.widget.ImageButton;
  71 import android.widget.ImageView;
  72 import android.widget.ImageView.ScaleType;
  73 import android.widget.LinearLayout;
  74 import android.widget.ListAdapter;
  75 import android.widget.ListView;
  76 import android.widget.TableLayout;
  77 import android.widget.TableRow;
  78 import android.widget.TextView;
  79 import android.widget.TextView.BufferType;
  80 import android.widget.Toast;
  81
  82 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  83 import com.hughes.android.dictionary.engine.Dictionary;
  84 import com.hughes.android.dictionary.engine.EntrySource;
  85 import com.hughes.android.dictionary.engine.HtmlEntry;
  86 import com.hughes.android.dictionary.engine.Index;
  87 import com.hughes.android.dictionary.engine.Index.IndexEntry;
  88 import com.hughes.android.dictionary.engine.Language.LanguageResources;
  89 import com.hughes.android.dictionary.engine.PairEntry;
  90 import com.hughes.android.dictionary.engine.PairEntry.Pair;
  91 import com.hughes.android.dictionary.engine.RowBase;
  92 import com.hughes.android.dictionary.engine.TokenRow;
  93 import com.hughes.android.dictionary.engine.TransliteratorManager;
  94 import com.hughes.android.util.IntentLauncher;
  95 import com.hughes.android.util.NonLinkClickableSpan;
  96 import com.hughes.util.StringUtil;
  97
  98 import java.io.File;
  99 import java.io.FileWriter;
 100 import java.io.IOException;
 101 import java.io.PrintWriter;
 102 import java.io.RandomAccessFile;
 103 import java.nio.channels.FileChannel;
 104 import java.text.SimpleDateFormat;
 105 import java.util.Arrays;
 106 import java.util.Collections;
 107 import java.util.Date;
 108 import java.util.HashMap;
 109 import java.util.LinkedHashSet;
 110 import java.util.List;
 111 import java.util.Locale;
 112 import java.util.Random;
 113 import java.util.Set;
 114 import java.util.concurrent.Executor;
 115 import java.util.concurrent.ExecutorService;
 116 import java.util.concurrent.Executors;
 117 import java.util.concurrent.ThreadFactory;
 118 import java.util.concurrent.atomic.AtomicBoolean;
 119 import java.util.regex.Matcher;
 120 import java.util.regex.Pattern;
 121
 122 public class DictionaryActivity extends ActionBarActivity {
 123
 124     static final String LOG = "QuickDic";
 125
 126     DictionaryApplication application;
 127
 128     File dictFile = null;
 129     FileChannel dictRaf = null;
 130     String dictFileTitleName = null;
 131
 132     Dictionary dictionary = null;
 133
 134     int indexIndex = 0;
 135
 136     Index index = null;
 137
 138     List<RowBase> rowsToShow = null; // if not null, just show these rows.
 139
 140     final Random rand = new Random();
 141
 142     final Handler uiHandler = new Handler();
 143
 144     private final ExecutorService searchExecutor = Executors.newSingleThreadExecutor(new ThreadFactory() {
 145         @Override
 146         public Thread newThread(Runnable r) {
 147             return new Thread(r, "searchExecutor");
 148         }
 149     });
 150
 151     private SearchOperation currentSearchOperation = null;
 152
 153     TextToSpeech textToSpeech;
 154     volatile boolean ttsReady;
 155
 156     Typeface typeface;
 157     DictionaryApplication.Theme theme = DictionaryApplication.Theme.LIGHT;
 158     int textColorFg = Color.BLACK;
 159     int fontSizeSp;
 160
 161     private ListView listView;
 162     private ListView getListView() {
 163         if (listView == null) {
 164             listView = (ListView)findViewById(android.R.id.list);
 165         }
 166         return listView;
 167     }
 168
 169     private void setListAdapter(ListAdapter adapter) {
 170         getListView().setAdapter(adapter);
 171     }
 172
 173     private ListAdapter getListAdapter() {
 174         return getListView().getAdapter();
 175     }
 176
 177     SearchView searchView;
 178     ImageButton languageButton;
 179     SearchView.OnQueryTextListener onQueryTextListener;
 180
 181     MenuItem nextWordMenuItem, previousWordMenuItem, randomWordMenuItem;
 182
 183     // Never null.
 184     private File wordList = null;
 185     private boolean saveOnlyFirstSubentry = false;
 186     private boolean clickOpensContextMenu = false;
 187
 188     // Visible for testing.
 189     ListAdapter indexAdapter = null;
 190
 191     /**
 192      * For some languages, loading the transliterators used in this search takes
 193      * a long time, so we fire it up on a different thread, and don't invoke it
 194      * from the main thread until it's already finished once.
 195      */
 196     private volatile boolean indexPrepFinished = false;
 197
 198     public DictionaryActivity() {
 199     }
 200
 201     public static Intent getLaunchIntent(Context c, final File dictFile, final String indexShortName,
 202                                          final String searchToken) {
 203         final Intent intent = new Intent(c, DictionaryActivity.class);
 204         intent.putExtra(C.DICT_FILE, dictFile.getPath());
 205         intent.putExtra(C.INDEX_SHORT_NAME, indexShortName);
 206         intent.putExtra(C.SEARCH_TOKEN, searchToken);
 207         intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK);
 208         return intent;
 209     }
 210
 211     @Override
 212     protected void onSaveInstanceState(final Bundle outState) {
 213         super.onSaveInstanceState(outState);
 214         Log.d(LOG, "onSaveInstanceState: " + searchView.getQuery().toString());
 215         outState.putString(C.INDEX_SHORT_NAME, index.shortName);
 216         outState.putString(C.SEARCH_TOKEN, searchView.getQuery().toString());
 217     }
 218
 219     private int getMatchLen(String search, Index.IndexEntry e) {
 220         if (e == null) return 0;
 221         for (int i = 0; i < search.length(); ++i) {
 222             String a = search.substring(0, i + 1);
 223             String b = e.token.substring(0, i + 1);
 224             if (!a.equalsIgnoreCase(b))
 225                 return i;
 226         }
 227         return search.length();
 228     }
 229
 230     private void dictionaryOpenFail(Exception e) {
 231         Log.e(LOG, "Unable to load dictionary.", e);
 232         if (dictRaf != null) {
 233             indexAdapter = null;
 234             setListAdapter(null);
 235             try {
 236                 dictRaf.close();
 237             } catch (IOException e1) {
 238                 Log.e(LOG, "Unable to close dictRaf.", e1);
 239             }
 240             dictRaf = null;
 241         }
 242         Toast.makeText(this, getString(R.string.invalidDictionary, "", e.getMessage()),
 243                        Toast.LENGTH_LONG).show();
 244         startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 245         finish();
 246     }
 247
 248     @Override
 249     public void onCreate(Bundle savedInstanceState) {
 250         DictionaryApplication.INSTANCE.init(getApplicationContext());
 251         application = DictionaryApplication.INSTANCE;
 252         // This needs to be before super.onCreate, otherwise ActionbarSherlock
 253         // doesn't makes the background of the actionbar white when you're
 254         // in the dark theme.
 255         setTheme(application.getSelectedTheme().themeId);
 256
 257         Log.d(LOG, "onCreate:" + this);
 258         super.onCreate(savedInstanceState);
 259
 260         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 261
 262         // Don't auto-launch if this fails.
 263         prefs.edit().remove(C.DICT_FILE).remove(C.INDEX_SHORT_NAME).commit();
 264
 265         setContentView(R.layout.dictionary_activity);
 266
 267         theme = application.getSelectedTheme();
 268         textColorFg = getResources().getColor(theme.tokenRowFgColor);
 269
 270         if (dictRaf != null) {
 271             try {
 272                 dictRaf.close();
 273             } catch (IOException e) {
 274                 Log.e(LOG, "Failed to close dictionary", e);
 275             }
 276             dictRaf = null;
 277         }
 278
 279         final Intent intent = getIntent();
 280         String intentAction = intent.getAction();
 281         /**
 282          * @author Dominik Köppl Querying the Intent
 283          *         com.hughes.action.ACTION_SEARCH_DICT is the advanced query
 284          *         Arguments: SearchManager.QUERY -> the phrase to search from
 285          *         -> language in which the phrase is written to -> to which
 286          *         language shall be translated
 287          */
 288         if (intentAction != null && intentAction.equals("com.hughes.action.ACTION_SEARCH_DICT")) {
 289             String query = intent.getStringExtra(SearchManager.QUERY);
 290             String from = intent.getStringExtra("from");
 291             if (from != null)
 292                 from = from.toLowerCase(Locale.US);
 293             String to = intent.getStringExtra("to");
 294             if (to != null)
 295                 to = to.toLowerCase(Locale.US);
 296             if (query != null) {
 297                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 298             }
 299             if (intent.getStringExtra(C.DICT_FILE) == null && (from != null || to != null)) {
 300                 Log.d(LOG, "DictSearch: from: " + from + " to " + to);
 301                 List<DictionaryInfo> dicts = application.getDictionariesOnDevice(null);
 302                 for (DictionaryInfo info : dicts) {
 303                     boolean hasFrom = from == null;
 304                     boolean hasTo = to == null;
 305                     for (IndexInfo index : info.indexInfos) {
 306                         if (!hasFrom && index.shortName.toLowerCase(Locale.US).equals(from))
 307                             hasFrom = true;
 308                         if (!hasTo && index.shortName.toLowerCase(Locale.US).equals(to))
 309                             hasTo = true;
 310                     }
 311                     if (hasFrom && hasTo) {
 312                         if (from != null) {
 313                             int which_index = 0;
 314                             for (; which_index < info.indexInfos.size(); ++which_index) {
 315                                 if (info.indexInfos.get(which_index).shortName.toLowerCase(
 316                                             Locale.US).equals(from))
 317                                     break;
 318                             }
 319                             intent.putExtra(C.INDEX_SHORT_NAME,
 320                                             info.indexInfos.get(which_index).shortName);
 321
 322                         }
 323                         intent.putExtra(C.DICT_FILE, application.getPath(info.uncompressedFilename)
 324                                         .toString());
 325                         break;
 326                     }
 327                 }
 328
 329             }
 330         }
 331         /**
 332          * @author Dominik Köppl Querying the Intent Intent.ACTION_SEARCH is a
 333          *         simple query Arguments follow from android standard (see
 334          *         documentation)
 335          */
 336         if (intentAction != null && intentAction.equals(Intent.ACTION_SEARCH)) {
 337             String query = intent.getStringExtra(SearchManager.QUERY);
 338             if (query != null)
 339                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 340         }
 341         if (intentAction != null && intentAction.equals(Intent.ACTION_SEND)) {
 342             String query = intent.getStringExtra(Intent.EXTRA_TEXT);
 343             if (query != null)
 344                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 345         }
 346         /*
 347          * This processes text on M+ devices where QuickDic shows up in the context menu.
 348          */
 349         if (intentAction != null && intentAction.equals(Intent.ACTION_PROCESS_TEXT)) {
 350             String query = intent.getStringExtra(Intent.EXTRA_PROCESS_TEXT);
 351             if (query != null) {
 352                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 353             }
 354         }
 355         // Support opening dictionary file directly
 356         if (intentAction != null && intentAction.equals(Intent.ACTION_VIEW)) {
 357             Uri uri = intent.getData();
 358             intent.putExtra(C.DICT_FILE, uri.toString());
 359             dictFileTitleName = uri.getLastPathSegment();
 360             try {
 361                 dictRaf = getContentResolver().openAssetFileDescriptor(uri, "r").createInputStream().getChannel();
 362             } catch (Exception e) {
 363                 dictionaryOpenFail(e);
 364                 return;
 365             }
 366         }
 367         /**
 368          * @author Dominik Köppl If no dictionary is chosen, use the default
 369          *         dictionary specified in the preferences If this step does
 370          *         fail (no default dictionary specified), show a toast and
 371          *         abort.
 372          */
 373         if (intent.getStringExtra(C.DICT_FILE) == null) {
 374             String dictfile = prefs.getString(getString(R.string.defaultDicKey), null);
 375             if (dictfile != null)
 376                 intent.putExtra(C.DICT_FILE, application.getPath(dictfile).toString());
 377         }
 378         String dictFilename = intent.getStringExtra(C.DICT_FILE);
 379         if (dictFilename == null && intent.getStringExtra(C.SEARCH_TOKEN) != null) {
 380             final List<DictionaryInfo> dics = application.getDictionariesOnDevice(null);
 381             final String search = intent.getStringExtra(C.SEARCH_TOKEN);
 382             String bestFname = null;
 383             String bestIndex = null;
 384             int bestMatchLen = 2; // ignore shorter matches
 385             AtomicBoolean dummy = new AtomicBoolean();
 386             for (int i = 0; dictFilename == null && i < dics.size(); ++i) {
 387                 try {
 388                     Log.d(LOG, "Checking dictionary " + dics.get(i).uncompressedFilename);
 389                     final File dictfile = application.getPath(dics.get(i).uncompressedFilename);
 390                     Dictionary dic = new Dictionary(new RandomAccessFile(dictfile, "r").getChannel());
 391                     for (int j = 0; j < dic.indices.size(); ++j) {
 392                         Index idx = dic.indices.get(j);
 393                         Log.d(LOG, "Checking index " + idx.shortName);
 394                         if (idx.findExact(search) != null) {
 395                             Log.d(LOG, "Found exact match");
 396                             dictFilename = dictfile.toString();
 397                             intent.putExtra(C.INDEX_SHORT_NAME, idx.shortName);
 398                             break;
 399                         }
 400                         int matchLen = getMatchLen(search, idx.findInsertionPoint(search, dummy));
 401                         Log.d(LOG, "Found partial match length " + matchLen);
 402                         if (matchLen > bestMatchLen) {
 403                             bestFname = dictfile.toString();
 404                             bestIndex = idx.shortName;
 405                             bestMatchLen = matchLen;
 406                         }
 407                     }
 408                 } catch (Exception e) {}
 409             }
 410             if (dictFilename == null && bestFname != null) {
 411                 dictFilename = bestFname;
 412                 intent.putExtra(C.INDEX_SHORT_NAME, bestIndex);
 413             }
 414         }
 415
 416         if (dictFilename == null) {
 417             Toast.makeText(this, getString(R.string.no_dict_file), Toast.LENGTH_LONG).show();
 418             startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 419             finish();
 420             return;
 421         }
 422         if (dictRaf == null && dictFilename != null)
 423             dictFile = new File(dictFilename);
 424
 425         ttsReady = false;
 426         textToSpeech = new TextToSpeech(getApplicationContext(), new OnInitListener() {
 427             @Override
 428             public void onInit(int status) {
 429                 ttsReady = true;
 430                 updateTTSLanguage(indexIndex);
 431             }
 432         });
 433
 434         try {
 435             if (dictRaf == null) {
 436                 dictFileTitleName = application.getDictionaryName(dictFile.getName());
 437                 dictRaf = new RandomAccessFile(dictFile, "r").getChannel();
 438             }
 439             this.setTitle("QuickDic: " + dictFileTitleName);
 440             dictionary = new Dictionary(dictRaf);
 441         } catch (Exception e) {
 442             dictionaryOpenFail(e);
 443             return;
 444         }
 445         String targetIndex = intent.getStringExtra(C.INDEX_SHORT_NAME);
 446         if (savedInstanceState != null && savedInstanceState.getString(C.INDEX_SHORT_NAME) != null) {
 447             targetIndex = savedInstanceState.getString(C.INDEX_SHORT_NAME);
 448         }
 449         indexIndex = 0;
 450         for (int i = 0; i < dictionary.indices.size(); ++i) {
 451             if (dictionary.indices.get(i).shortName.equals(targetIndex)) {
 452                 indexIndex = i;
 453                 break;
 454             }
 455         }
 456         Log.d(LOG, "Loading index " + indexIndex);
 457         index = dictionary.indices.get(indexIndex);
 458         getListView().setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
 459         getListView().setEmptyView(findViewById(android.R.id.empty));
 460         getListView().setOnItemClickListener(new OnItemClickListener() {
 461             @Override
 462             public void onItemClick(AdapterView<?> parent, View view, int row, long id) {
 463                 onListItemClick(getListView(), view, row, id);
 464             }
 465         });
 466
 467         setListAdapter(new IndexAdapter(index));
 468
 469         // Pre-load the Transliterator (will spawn its own thread)
 470         TransliteratorManager.init(new TransliteratorManager.Callback() {
 471             @Override
 472             public void onTransliteratorReady() {
 473                 uiHandler.post(new Runnable() {
 474                     @Override
 475                     public void run() {
 476                         onSearchTextChange(searchView.getQuery().toString());
 477                     }
 478                 });
 479             }
 480         }, DictionaryApplication.threadBackground);
 481
 482         // Pre-load the collators.
 483         new Thread(new Runnable() {
 484             public void run() {
 485                 android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_LESS_FAVORABLE);
 486                 final long startMillis = System.currentTimeMillis();
 487                 try {
 488                     for (final Index index : dictionary.indices) {
 489                         final String searchToken = index.sortedIndexEntries.get(0).token;
 490                         final IndexEntry entry = index.findExact(searchToken);
 491                         if (entry == null || !searchToken.equals(entry.token)) {
 492                             Log.e(LOG, "Couldn't find token: " + searchToken + ", " + (entry == null ? "null" : entry.token));
 493                         }
 494                     }
 495                     indexPrepFinished = true;
 496                 } catch (Exception e) {
 497                     Log.w(LOG,
 498                           "Exception while prepping.  This can happen if dictionary is closed while search is happening.");
 499                 }
 500                 Log.d(LOG, "Prepping indices took:" + (System.currentTimeMillis() - startMillis));
 501             }
 502         }).start();
 503
 504         String fontName = prefs.getString(getString(R.string.fontKey), "FreeSerif.otf.jpg");
 505         if ("SYSTEM".equals(fontName)) {
 506             typeface = Typeface.DEFAULT;
 507         } else if ("SERIF".equals(fontName)) {
 508             typeface = Typeface.SERIF;
 509         } else if ("SANS_SERIF".equals(fontName)) {
 510             typeface = Typeface.SANS_SERIF;
 511         } else if ("MONOSPACE".equals(fontName)) {
 512             typeface = Typeface.MONOSPACE;
 513         } else {
 514             if ("FreeSerif.ttf.jpg".equals(fontName)) {
 515                 fontName = "FreeSerif.otf.jpg";
 516             }
 517             try {
 518                 typeface = Typeface.createFromAsset(getAssets(), fontName);
 519             } catch (Exception e) {
 520                 Log.w(LOG, "Exception trying to use typeface, using default.", e);
 521                 Toast.makeText(this, getString(R.string.fontFailure, e.getLocalizedMessage()),
 522                                Toast.LENGTH_LONG).show();
 523             }
 524         }
 525         if (typeface == null) {
 526             Log.w(LOG, "Unable to create typeface, using default.");
 527             typeface = Typeface.DEFAULT;
 528         }
 529         final String fontSize = prefs.getString(getString(R.string.fontSizeKey), "14");
 530         try {
 531             fontSizeSp = Integer.parseInt(fontSize.trim());
 532         } catch (NumberFormatException e) {
 533             fontSizeSp = 14;
 534         }
 535
 536         // ContextMenu.
 537         registerForContextMenu(getListView());
 538
 539         // Cache some prefs.
 540         wordList = application.getWordListFile();
 541         saveOnlyFirstSubentry = prefs.getBoolean(getString(R.string.saveOnlyFirstSubentryKey),
 542                                 false);
 543         clickOpensContextMenu = prefs.getBoolean(getString(R.string.clickOpensContextMenuKey),
 544                                 !getPackageManager().hasSystemFeature(PackageManager.FEATURE_TOUCHSCREEN));
 545         Log.d(LOG, "wordList=" + wordList + ", saveOnlyFirstSubentry=" + saveOnlyFirstSubentry);
 546
 547         onCreateSetupActionBarAndSearchView();
 548
 549         View floatSwapButton = findViewById(R.id.floatSwapButton);
 550         floatSwapButton.setOnLongClickListener(new OnLongClickListener() {
 551             @Override
 552             public boolean onLongClick(View v) {
 553                 onLanguageButtonLongClick(v.getContext());
 554                 return true;
 555             }
 556         });
 557
 558         // Set the search text from the intent, then the saved state.
 559         String text = getIntent().getStringExtra(C.SEARCH_TOKEN);
 560         if (savedInstanceState != null) {
 561             text = savedInstanceState.getString(C.SEARCH_TOKEN);
 562         }
 563         if (text == null) {
 564             text = "";
 565         }
 566         setSearchText(text, true);
 567         Log.d(LOG, "Trying to restore searchText=" + text);
 568
 569         setDictionaryPrefs(this, dictFile, index.shortName);
 570
 571         updateLangButton();
 572         searchView.requestFocus();
 573
 574         // http://stackoverflow.com/questions/2833057/background-listview-becomes-black-when-scrolling
 575 //        getListView().setCacheColorHint(0);
 576     }
 577
 578     private void onCreateSetupActionBarAndSearchView() {
 579         ActionBar actionBar = getSupportActionBar();
 580         actionBar.setDisplayShowTitleEnabled(false);
 581         actionBar.setDisplayShowHomeEnabled(false);
 582         actionBar.setDisplayHomeAsUpEnabled(false);
 583
 584         final LinearLayout customSearchView = new LinearLayout(getSupportActionBar().getThemedContext());
 585
 586         final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 587             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 588         customSearchView.setLayoutParams(layoutParams);
 589
 590         languageButton = new ImageButton(customSearchView.getContext());
 591         languageButton.setId(R.id.languageButton);
 592         languageButton.setScaleType(ScaleType.FIT_CENTER);
 593         languageButton.setOnClickListener(new OnClickListener() {
 594             @Override
 595             public void onClick(View v) {
 596                 onLanguageButtonLongClick(v.getContext());
 597             }
 598         });
 599         languageButton.setAdjustViewBounds(true);
 600         LinearLayout.LayoutParams lpb = new LinearLayout.LayoutParams(application.languageButtonPixels, LinearLayout.LayoutParams.MATCH_PARENT);
 601         customSearchView.addView(languageButton, lpb);
 602
 603         searchView = new SearchView(getSupportActionBar().getThemedContext());
 604         searchView.setId(R.id.searchView);
 605
 606         // Get rid of search icon, it takes up too much space.
 607         // There is still text saying "search" in the search field.
 608         searchView.setIconifiedByDefault(true);
 609         searchView.setIconified(false);
 610
 611         searchView.setQueryHint(getString(R.string.searchText));
 612         searchView.setSubmitButtonEnabled(false);
 613         searchView.setInputType(InputType.TYPE_CLASS_TEXT);
 614         searchView.setImeOptions(
 615             EditorInfo.IME_ACTION_DONE |
 616             EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 617             // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 618             // 11
 619             EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 620         onQueryTextListener = new OnQueryTextListener() {
 621             @Override
 622             public boolean onQueryTextSubmit(String query) {
 623                 Log.d(LOG, "OnQueryTextListener: onQueryTextSubmit: " + searchView.getQuery());
 624                 hideKeyboard();
 625                 return true;
 626             }
 627
 628             @Override
 629             public boolean onQueryTextChange(String newText) {
 630                 Log.d(LOG, "OnQueryTextListener: onQueryTextChange: " + searchView.getQuery());
 631                 onSearchTextChange(searchView.getQuery().toString());
 632                 return true;
 633             }
 634         };
 635         searchView.setOnQueryTextListener(onQueryTextListener);
 636         searchView.setFocusable(true);
 637         LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(0,
 638                 FrameLayout.LayoutParams.WRAP_CONTENT, 1);
 639         customSearchView.addView(searchView, lp);
 640
 641         actionBar.setCustomView(customSearchView);
 642         actionBar.setDisplayShowCustomEnabled(true);
 643
 644         // Avoid wasting space on large left inset
 645         Toolbar tb = (Toolbar)customSearchView.getParent();
 646         tb.setContentInsetsRelative(0, 0);
 647
 648         getListView().setNextFocusLeftId(R.id.searchView);
 649         findViewById(R.id.floatSwapButton).setNextFocusRightId(R.id.languageButton);
 650         languageButton.setNextFocusLeftId(R.id.floatSwapButton);
 651     }
 652
 653     @Override
 654     protected void onResume() {
 655         Log.d(LOG, "onResume");
 656         super.onResume();
 657         if (PreferenceActivity.prefsMightHaveChanged) {
 658             PreferenceActivity.prefsMightHaveChanged = false;
 659             finish();
 660             startActivity(getIntent());
 661         }
 662         showKeyboard();
 663     }
 664
 665     @Override
 666     protected void onPause() {
 667         super.onPause();
 668     }
 669
 670     @Override
 671     /**
 672      * Invoked when MyWebView returns, since the user might have clicked some
 673      * hypertext in the MyWebView.
 674      */
 675     protected void onActivityResult(int requestCode, int resultCode, Intent result) {
 676         super.onActivityResult(requestCode, resultCode, result);
 677         if (result != null && result.hasExtra(C.SEARCH_TOKEN)) {
 678             Log.d(LOG, "onActivityResult: " + result.getStringExtra(C.SEARCH_TOKEN));
 679             jumpToTextFromHyperLink(result.getStringExtra(C.SEARCH_TOKEN), indexIndex);
 680         }
 681     }
 682
 683     private static void setDictionaryPrefs(final Context context, final File dictFile,
 684                                            final String indexShortName) {
 685         final SharedPreferences.Editor prefs = PreferenceManager.getDefaultSharedPreferences(
 686                 context).edit();
 687         if (dictFile != null) {
 688             prefs.putString(C.DICT_FILE, dictFile.getPath());
 689             prefs.putString(C.INDEX_SHORT_NAME, indexShortName);
 690         }
 691         prefs.remove(C.SEARCH_TOKEN); // Don't need to save search token.
 692         prefs.commit();
 693     }
 694
 695     @Override
 696     protected void onDestroy() {
 697         super.onDestroy();
 698         if (dictRaf == null) {
 699             return;
 700         }
 701
 702         final SearchOperation searchOperation = currentSearchOperation;
 703         currentSearchOperation = null;
 704
 705         // Before we close the RAF, we have to wind the current search down.
 706         if (searchOperation != null) {
 707             Log.d(LOG, "Interrupting search to shut down.");
 708             currentSearchOperation = null;
 709             searchOperation.interrupted.set(true);
 710         }
 711         searchExecutor.shutdownNow();
 712         textToSpeech.shutdown();
 713         textToSpeech = null;
 714
 715         indexAdapter = null;
 716         setListAdapter(null);
 717
 718         try {
 719             Log.d(LOG, "Closing RAF.");
 720             dictRaf.close();
 721         } catch (IOException e) {
 722             Log.e(LOG, "Failed to close dictionary", e);
 723         }
 724         dictRaf = null;
 725     }
 726
 727     // --------------------------------------------------------------------------
 728     // Buttons
 729     // --------------------------------------------------------------------------
 730
 731     private void showKeyboard() {
 732         // For some reason, this doesn't always work the first time.
 733         // One way to replicate the problem:
 734         // Press the "task switch" button repeatedly to pause and resume
 735         for (int delay = 1; delay <= 101; delay += 100) {
 736             searchView.postDelayed(new Runnable() {
 737                 @Override
 738                 public void run() {
 739                     Log.d(LOG, "Trying to show soft keyboard.");
 740                     final boolean searchTextHadFocus = searchView.hasFocus();
 741                     searchView.requestFocusFromTouch();
 742                     final InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 743                     manager.showSoftInput(searchView, InputMethodManager.SHOW_IMPLICIT);
 744                     if (!searchTextHadFocus) {
 745                         defocusSearchText();
 746                     }
 747                 }
 748             }, delay);
 749         }
 750     }
 751
 752     private void hideKeyboard() {
 753         Log.d(LOG, "Hide soft keyboard.");
 754         searchView.clearFocus();
 755         InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 756         manager.hideSoftInputFromWindow(searchView.getWindowToken(), 0);
 757     }
 758
 759     void updateLangButton() {
 760         final int flagId = IsoUtils.INSTANCE.getFlagIdForIsoCode(index.shortName);
 761         if (flagId != 0) {
 762             languageButton.setImageResource(flagId);
 763         } else {
 764             if (indexIndex % 2 == 0) {
 765                 languageButton.setImageResource(android.R.drawable.ic_media_next);
 766             } else {
 767                 languageButton.setImageResource(android.R.drawable.ic_media_previous);
 768             }
 769         }
 770         updateTTSLanguage(indexIndex);
 771     }
 772
 773     private void updateTTSLanguage(int i) {
 774         if (!ttsReady || index == null || textToSpeech == null) {
 775             Log.d(LOG, "Can't updateTTSLanguage.");
 776             return;
 777         }
 778         final Locale locale = new Locale(dictionary.indices.get(i).sortLanguage.getIsoCode());
 779         Log.d(LOG, "Setting TTS locale to: " + locale);
 780         try {
 781             final int ttsResult = textToSpeech.setLanguage(locale);
 782             if (ttsResult != TextToSpeech.LANG_AVAILABLE &&
 783                     ttsResult != TextToSpeech.LANG_COUNTRY_AVAILABLE) {
 784                 Log.e(LOG, "TTS not available in this language: ttsResult=" + ttsResult);
 785             }
 786         } catch (Exception e) {
 787             if (!isFinishing())
 788                 Toast.makeText(this, getString(R.string.TTSbroken), Toast.LENGTH_LONG).show();
 789         }
 790     }
 791
 792     public void onSearchButtonClick(View dummy) {
 793         if (!searchView.hasFocus()) {
 794             searchView.requestFocus();
 795         }
 796         if (searchView.getQuery().toString().length() > 0) {
 797             searchView.setQuery("", false);
 798         }
 799         showKeyboard();
 800         searchView.setIconified(false);
 801     }
 802
 803     public void onLanguageButtonClick(View dummy) {
 804         if (dictionary.indices.size() == 1) {
 805             // No need to work to switch indices.
 806             return;
 807         }
 808         if (currentSearchOperation != null) {
 809             currentSearchOperation.interrupted.set(true);
 810             currentSearchOperation = null;
 811         }
 812         setIndexAndSearchText((indexIndex + 1) % dictionary.indices.size(),
 813                               searchView.getQuery().toString(), false);
 814     }
 815
 816     void onLanguageButtonLongClick(final Context context) {
 817         final Dialog dialog = new Dialog(context);
 818         dialog.setContentView(R.layout.select_dictionary_dialog);
 819         dialog.setTitle(R.string.selectDictionary);
 820
 821         final List<DictionaryInfo> installedDicts = application.getDictionariesOnDevice(null);
 822
 823         ListView listView = dialog.findViewById(android.R.id.list);
 824         final Button button = new Button(listView.getContext());
 825         final String name = getString(R.string.dictionaryManager);
 826         button.setText(name);
 827         final IntentLauncher intentLauncher = new IntentLauncher(listView.getContext(),
 828         DictionaryManagerActivity.getLaunchIntent(getApplicationContext())) {
 829             @Override
 830             protected void onGo() {
 831                 dialog.dismiss();
 832                 DictionaryActivity.this.finish();
 833             }
 834         };
 835         button.setOnClickListener(intentLauncher);
 836         listView.addHeaderView(button);
 837
 838         listView.setItemsCanFocus(true);
 839         listView.setAdapter(new BaseAdapter() {
 840             @Override
 841             public View getView(int position, View convertView, ViewGroup parent) {
 842                 final DictionaryInfo dictionaryInfo = getItem(position);
 843
 844                 final LinearLayout result = new LinearLayout(parent.getContext());
 845
 846                 for (int i = 0; dictionaryInfo.indexInfos != null && i < dictionaryInfo.indexInfos.size(); ++i) {
 847                     final IndexInfo indexInfo = dictionaryInfo.indexInfos.get(i);
 848                     final View button = IsoUtils.INSTANCE.createButton(parent.getContext(),
 849                                         dictionaryInfo, indexInfo, application.languageButtonPixels);
 850                     final IntentLauncher intentLauncher = new IntentLauncher(parent.getContext(),
 851                             getLaunchIntent(getApplicationContext(),
 852                                             application.getPath(dictionaryInfo.uncompressedFilename),
 853                     indexInfo.shortName, searchView.getQuery().toString())) {
 854                         @Override
 855                         protected void onGo() {
 856                             dialog.dismiss();
 857                             DictionaryActivity.this.finish();
 858                         }
 859                     };
 860                     button.setOnClickListener(intentLauncher);
 861                     if (i == indexIndex && dictFile != null &&
 862                             dictFile.getName().equals(dictionaryInfo.uncompressedFilename)) {
 863                         button.setPressed(true);
 864                     }
 865                     result.addView(button);
 866                 }
 867
 868                 final TextView nameView = new TextView(parent.getContext());
 869                 final String name = application
 870                                     .getDictionaryName(dictionaryInfo.uncompressedFilename);
 871                 nameView.setText(name);
 872                 final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 873                     ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 874                 layoutParams.width = 0;
 875                 layoutParams.weight = 1.0f;
 876                 nameView.setLayoutParams(layoutParams);
 877                 nameView.setGravity(Gravity.CENTER_VERTICAL);
 878                 result.addView(nameView);
 879                 return result;
 880             }
 881
 882             @Override
 883             public long getItemId(int position) {
 884                 return position;
 885             }
 886
 887             @Override
 888             public DictionaryInfo getItem(int position) {
 889                 return installedDicts.get(position);
 890             }
 891
 892             @Override
 893             public int getCount() {
 894                 return installedDicts.size();
 895             }
 896         });
 897         dialog.show();
 898     }
 899
 900     void onUpDownButton(final boolean up) {
 901         if (isFiltered()) {
 902             return;
 903         }
 904         final int firstVisibleRow = getListView().getFirstVisiblePosition();
 905         final RowBase row = index.rows.get(firstVisibleRow);
 906         final TokenRow tokenRow = row.getTokenRow(true);
 907         final int destIndexEntry;
 908         if (up) {
 909             if (row != tokenRow) {
 910                 destIndexEntry = tokenRow.referenceIndex;
 911             } else {
 912                 destIndexEntry = Math.max(tokenRow.referenceIndex - 1, 0);
 913             }
 914         } else {
 915             // Down
 916             destIndexEntry = Math.min(tokenRow.referenceIndex + 1, index.sortedIndexEntries.size() - 1);
 917         }
 918         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 919         Log.d(LOG, "onUpDownButton, destIndexEntry=" + dest.token);
 920         setSearchText(dest.token, false);
 921         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 922         defocusSearchText();
 923     }
 924
 925     void onRandomWordButton() {
 926         int destIndexEntry = rand.nextInt(index.sortedIndexEntries.size());
 927         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 928         setSearchText(dest.token, false);
 929         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 930         defocusSearchText();
 931     }
 932
 933     // --------------------------------------------------------------------------
 934     // Options Menu
 935     // --------------------------------------------------------------------------
 936
 937     final Random random = new Random();
 938
 939     @Override
 940     public boolean onCreateOptionsMenu(final Menu menu) {
 941
 942         if (PreferenceManager.getDefaultSharedPreferences(this)
 943                 .getBoolean(getString(R.string.showPrevNextButtonsKey), true)) {
 944             // Next word.
 945             nextWordMenuItem = menu.add(getString(R.string.nextWord))
 946                                .setIcon(R.drawable.arrow_down_float);
 947             MenuItemCompat.setShowAsAction(nextWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
 948             nextWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 949                 @Override
 950                 public boolean onMenuItemClick(MenuItem item) {
 951                     onUpDownButton(false);
 952                     return true;
 953                 }
 954             });
 955
 956             // Previous word.
 957             previousWordMenuItem = menu.add(getString(R.string.previousWord))
 958                                    .setIcon(R.drawable.arrow_up_float);
 959             MenuItemCompat.setShowAsAction(previousWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
 960             previousWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 961                 @Override
 962                 public boolean onMenuItemClick(MenuItem item) {
 963                     onUpDownButton(true);
 964                     return true;
 965                 }
 966             });
 967         }
 968
 969         randomWordMenuItem = menu.add(getString(R.string.randomWord));
 970         randomWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 971             @Override
 972             public boolean onMenuItemClick(MenuItem item) {
 973                 onRandomWordButton();
 974                 return true;
 975             }
 976         });
 977
 978         {
 979             final MenuItem dictionaryManager = menu.add(getString(R.string.dictionaryManager));
 980             MenuItemCompat.setShowAsAction(dictionaryManager, MenuItem.SHOW_AS_ACTION_NEVER);
 981             dictionaryManager.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 982                 public boolean onMenuItemClick(final MenuItem menuItem) {
 983                     startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 984                     finish();
 985                     return false;
 986                 }
 987             });
 988         }
 989
 990         {
 991             final MenuItem aboutDictionary = menu.add(getString(R.string.aboutDictionary));
 992             MenuItemCompat.setShowAsAction(aboutDictionary, MenuItem.SHOW_AS_ACTION_NEVER);
 993             aboutDictionary.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 994                 public boolean onMenuItemClick(final MenuItem menuItem) {
 995                     final Context context = getListView().getContext();
 996                     final Dialog dialog = new Dialog(context);
 997                     dialog.setContentView(R.layout.about_dictionary_dialog);
 998                     final TextView textView = dialog.findViewById(R.id.text);
 999
1000                     dialog.setTitle(dictFileTitleName);
1001
1002                     final StringBuilder builder = new StringBuilder();
1003                     final DictionaryInfo dictionaryInfo = dictionary.getDictionaryInfo();
1004                     if (dictionaryInfo != null) {
1005                         try {
1006                             dictionaryInfo.uncompressedBytes = dictRaf.size();
1007                         } catch (IOException e) {
1008                         }
1009                         builder.append(dictionaryInfo.dictInfo).append("\n\n");
1010                         if (dictFile != null) {
1011                             builder.append(getString(R.string.dictionaryPath, dictFile.getPath()))
1012                             .append("\n");
1013                         }
1014                         builder.append(
1015                             getString(R.string.dictionarySize, dictionaryInfo.uncompressedBytes))
1016                         .append("\n");
1017                         builder.append(
1018                             getString(R.string.dictionaryCreationTime,
1019                                       dictionaryInfo.creationMillis)).append("\n");
1020                         for (final IndexInfo indexInfo : dictionaryInfo.indexInfos) {
1021                             builder.append("\n");
1022                             builder.append(getString(R.string.indexName, indexInfo.shortName))
1023                             .append("\n");
1024                             builder.append(
1025                                 getString(R.string.mainTokenCount, indexInfo.mainTokenCount))
1026                             .append("\n");
1027                         }
1028                         builder.append("\n");
1029                         builder.append(getString(R.string.sources)).append("\n");
1030                         for (final EntrySource source : dictionary.sources) {
1031                             builder.append(
1032                                 getString(R.string.sourceInfo, source.getName(),
1033                                           source.getNumEntries())).append("\n");
1034                         }
1035                     }
1036                     textView.setText(builder.toString());
1037
1038                     dialog.show();
1039                     final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
1040                     layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
1041                     layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
1042                     dialog.getWindow().setAttributes(layoutParams);
1043                     return false;
1044                 }
1045             });
1046         }
1047
1048         DictionaryApplication.onCreateGlobalOptionsMenu(this, menu);
1049
1050         return true;
1051     }
1052
1053     // --------------------------------------------------------------------------
1054     // Context Menu + clicks
1055     // --------------------------------------------------------------------------
1056
1057     @Override
1058     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
1059         final AdapterContextMenuInfo adapterContextMenuInfo = (AdapterContextMenuInfo) menuInfo;
1060         final RowBase row = (RowBase) getListAdapter().getItem(adapterContextMenuInfo.position);
1061
1062         if (clickOpensContextMenu && (row instanceof HtmlEntry.Row ||
1063             (row instanceof TokenRow && ((TokenRow)row).getIndexEntry().htmlEntries.size() > 0))) {
1064             final List<HtmlEntry> html = row instanceof TokenRow ? ((TokenRow)row).getIndexEntry().htmlEntries : Collections.singletonList(((HtmlEntry.Row)row).getEntry());
1065             final String highlight = row instanceof HtmlEntry.Row ? row.getTokenRow(true).getToken() : null;
1066             final MenuItem open = menu.add("Open");
1067             open.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
1068                 public boolean onMenuItemClick(MenuItem item) {
1069                     showHtml(html, highlight);
1070                     return false;
1071                 }
1072             });
1073         }
1074
1075         final android.view.MenuItem addToWordlist = menu.add(getString(R.string.addToWordList,
1076                 wordList.getName()));
1077         addToWordlist
1078         .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1079             public boolean onMenuItemClick(android.view.MenuItem item) {
1080                 onAppendToWordList(row);
1081                 return false;
1082             }
1083         });
1084
1085         final android.view.MenuItem share = menu.add("Share");
1086         share.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1087             public boolean onMenuItemClick(android.view.MenuItem item) {
1088                 Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
1089                 shareIntent.setType("text/plain");
1090                 shareIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, row.getTokenRow(true)
1091                                      .getToken());
1092                 shareIntent.putExtra(android.content.Intent.EXTRA_TEXT,
1093                                      row.getRawText(saveOnlyFirstSubentry));
1094                 startActivity(shareIntent);
1095                 return false;
1096             }
1097         });
1098
1099         final android.view.MenuItem copy = menu.add(android.R.string.copy);
1100         copy.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1101             public boolean onMenuItemClick(android.view.MenuItem item) {
1102                 onCopy(row);
1103                 return false;
1104             }
1105         });
1106
1107         if (selectedSpannableText != null) {
1108             final String selectedText = selectedSpannableText;
1109             final android.view.MenuItem searchForSelection = menu.add(getString(
1110                         R.string.searchForSelection,
1111                         selectedSpannableText));
1112             searchForSelection
1113             .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1114                 public boolean onMenuItemClick(android.view.MenuItem item) {
1115                     jumpToTextFromHyperLink(selectedText, selectedSpannableIndex);
1116                     return false;
1117                 }
1118             });
1119             // Rats, this won't be shown:
1120             //searchForSelection.setIcon(R.drawable.abs__ic_search);
1121         }
1122
1123         if ((row instanceof TokenRow || selectedSpannableText != null) && ttsReady) {
1124             final android.view.MenuItem speak = menu.add(R.string.speak);
1125             final String textToSpeak = row instanceof TokenRow ? ((TokenRow) row).getToken() : selectedSpannableText;
1126             updateTTSLanguage(row instanceof TokenRow ? indexIndex : selectedSpannableIndex);
1127             speak.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1128                 @Override
1129                 public boolean onMenuItemClick(android.view.MenuItem item) {
1130                     textToSpeech.speak(textToSpeak, TextToSpeech.QUEUE_FLUSH,
1131                                        new HashMap<String, String>());
1132                     return false;
1133                 }
1134             });
1135         }
1136         if (row instanceof PairEntry.Row && ttsReady) {
1137             final List<Pair> pairs = ((PairEntry.Row)row).getEntry().pairs;
1138             final MenuItem speakLeft = menu.add(R.string.speak_left);
1139             speakLeft.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1140                 @Override
1141                 public boolean onMenuItemClick(android.view.MenuItem item) {
1142                     int idx = index.swapPairEntries ? 1 : 0;
1143                     updateTTSLanguage(idx);
1144                     String text = "";
1145                     for (Pair p : pairs) text += p.get(idx);
1146                     text = text.replaceAll("\\{[^{}]*\\}", "").replace("{", "").replace("}", "");
1147                     textToSpeech.speak(text, TextToSpeech.QUEUE_FLUSH,
1148                                        new HashMap<String, String>());
1149                     return false;
1150                 }
1151             });
1152             final MenuItem speakRight = menu.add(R.string.speak_right);
1153             speakRight.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1154                 @Override
1155                 public boolean onMenuItemClick(android.view.MenuItem item) {
1156                     int idx = index.swapPairEntries ? 0 : 1;
1157                     updateTTSLanguage(idx);
1158                     String text = "";
1159                     for (Pair p : pairs) text += p.get(idx);
1160                     text = text.replaceAll("\\{[^{}]*\\}", "").replace("{", "").replace("}", "");
1161                     textToSpeech.speak(text, TextToSpeech.QUEUE_FLUSH,
1162                                        new HashMap<String, String>());
1163                     return false;
1164                 }
1165             });
1166         }
1167     }
1168
1169     private void jumpToTextFromHyperLink(
1170         final String selectedText, final int defaultIndexToUse) {
1171         int indexToUse = -1;
1172         int numFound = 0;
1173         for (int i = 0; i < dictionary.indices.size(); ++i) {
1174             final Index index = dictionary.indices.get(i);
1175             if (indexPrepFinished) {
1176                 System.out.println("Doing index lookup: on " + selectedText);
1177                 final IndexEntry indexEntry = index.findExact(selectedText);
1178                 if (indexEntry != null) {
1179                     final TokenRow tokenRow = index.rows.get(indexEntry.startRow)
1180                                               .getTokenRow(false);
1181                     if (tokenRow != null && tokenRow.hasMainEntry) {
1182                         indexToUse = i;
1183                         ++numFound;
1184                     }
1185                 }
1186             } else {
1187                 Log.w(LOG, "Skipping findExact on index " + index.shortName);
1188             }
1189         }
1190         if (numFound != 1 || indexToUse == -1) {
1191             indexToUse = defaultIndexToUse;
1192         }
1193         // Without this extra delay, the call to jumpToRow that this
1194         // invokes doesn't always actually have any effect.
1195         final int actualIndexToUse = indexToUse;
1196         getListView().postDelayed(new Runnable() {
1197             @Override
1198             public void run() {
1199                 setIndexAndSearchText(actualIndexToUse, selectedText, true);
1200             }
1201         }, 100);
1202     }
1203
1204     /**
1205      * Called when user clicks outside of search text, so that they can start
1206      * typing again immediately.
1207      */
1208     void defocusSearchText() {
1209         // Log.d(LOG, "defocusSearchText");
1210         // Request focus so that if we start typing again, it clears the text
1211         // input.
1212         getListView().requestFocus();
1213
1214         // Visual indication that a new keystroke will clear the search text.
1215         // Doesn't seem to work unless searchText has focus.
1216         // searchView.selectAll();
1217     }
1218
1219     protected void onListItemClick(ListView l, View v, int rowIdx, long id) {
1220         defocusSearchText();
1221         if (clickOpensContextMenu && dictRaf != null) {
1222             openContextMenu(v);
1223         } else {
1224             final RowBase row = (RowBase)getListAdapter().getItem(rowIdx);
1225             if (!(row instanceof PairEntry.Row)) {
1226                 v.performClick();
1227             }
1228         }
1229     }
1230
1231     @SuppressLint("SimpleDateFormat")
1232     void onAppendToWordList(final RowBase row) {
1233         defocusSearchText();
1234
1235         final StringBuilder rawText = new StringBuilder();
1236         rawText.append(new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(new Date())).append("\t");
1237         rawText.append(index.longName).append("\t");
1238         rawText.append(row.getTokenRow(true).getToken()).append("\t");
1239         rawText.append(row.getRawText(saveOnlyFirstSubentry));
1240         Log.d(LOG, "Writing : " + rawText);
1241
1242         try {
1243             wordList.getParentFile().mkdirs();
1244             final PrintWriter out = new PrintWriter(new FileWriter(wordList, true));
1245             out.println(rawText.toString());
1246             out.close();
1247         } catch (Exception e) {
1248             Log.e(LOG, "Unable to append to " + wordList.getAbsolutePath(), e);
1249             Toast.makeText(this,
1250                            getString(R.string.failedAddingToWordList, wordList.getAbsolutePath()),
1251                            Toast.LENGTH_LONG).show();
1252         }
1253         return;
1254     }
1255
1256     @SuppressWarnings("deprecation")
1257     void onCopy(final RowBase row) {
1258         defocusSearchText();
1259
1260         Log.d(LOG, "Copy, row=" + row);
1261         final StringBuilder result = new StringBuilder();
1262         result.append(row.getRawText(false));
1263         final ClipboardManager clipboardManager = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
1264         clipboardManager.setText(result.toString());
1265         Log.d(LOG, "Copied: " + result);
1266     }
1267
1268     @Override
1269     public boolean onKeyDown(final int keyCode, final KeyEvent event) {
1270         if (event.getUnicodeChar() != 0) {
1271             if (!searchView.hasFocus()) {
1272                 setSearchText("" + (char) event.getUnicodeChar(), true);
1273                 searchView.requestFocus();
1274             }
1275             return true;
1276         }
1277         if (keyCode == KeyEvent.KEYCODE_BACK) {
1278             // Log.d(LOG, "Clearing dictionary prefs.");
1279             // Pretend that we just autolaunched so that we won't do it again.
1280             // DictionaryManagerActivity.lastAutoLaunchMillis =
1281             // System.currentTimeMillis();
1282         }
1283         if (keyCode == KeyEvent.KEYCODE_ENTER) {
1284             Log.d(LOG, "Trying to hide soft keyboard.");
1285             final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
1286             View focus = getCurrentFocus();
1287             if (focus != null) {
1288                 inputManager.hideSoftInputFromWindow(focus.getWindowToken(),
1289                                                      InputMethodManager.HIDE_NOT_ALWAYS);
1290             }
1291             return true;
1292         }
1293         return super.onKeyDown(keyCode, event);
1294     }
1295
1296     private void setIndexAndSearchText(int newIndex, String newSearchText, boolean hideKeyboard) {
1297         Log.d(LOG, "Changing index to: " + newIndex);
1298         if (newIndex == -1) {
1299             Log.e(LOG, "Invalid index.");
1300             newIndex = 0;
1301         }
1302         if (newIndex != indexIndex) {
1303             indexIndex = newIndex;
1304             index = dictionary.indices.get(indexIndex);
1305             indexAdapter = new IndexAdapter(index);
1306             setListAdapter(indexAdapter);
1307             Log.d(LOG, "changingIndex, newLang=" + index.longName);
1308             setDictionaryPrefs(this, dictFile, index.shortName);
1309             updateLangButton();
1310         }
1311         setSearchText(newSearchText, true, hideKeyboard);
1312     }
1313
1314     private void setSearchText(final String text, final boolean triggerSearch, boolean hideKeyboard) {
1315         Log.d(LOG, "setSearchText, text=" + text + ", triggerSearch=" + triggerSearch);
1316         // Disable the listener, because sometimes it doesn't work.
1317         searchView.setOnQueryTextListener(null);
1318         searchView.setQuery(text, false);
1319         moveCursorToRight();
1320         searchView.setOnQueryTextListener(onQueryTextListener);
1321
1322         if (triggerSearch) {
1323             onSearchTextChange(text);
1324         }
1325
1326         // We don't want to show virtual keyboard when we're changing searchView text programatically:
1327         if (hideKeyboard) {
1328             hideKeyboard();
1329         }
1330     }
1331
1332     private void setSearchText(final String text, final boolean triggerSearch) {
1333         setSearchText(text, triggerSearch, true);
1334     }
1335
1336     // private long cursorDelayMillis = 100;
1337     private void moveCursorToRight() {
1338         // if (searchText.getLayout() != null) {
1339         // cursorDelayMillis = 100;
1340         // // Surprising, but this can crash when you rotate...
1341         // Selection.moveToRightEdge(searchView.getQuery(),
1342         // searchText.getLayout());
1343         // } else {
1344         // uiHandler.postDelayed(new Runnable() {
1345         // @Override
1346         // public void run() {
1347         // moveCursorToRight();
1348         // }
1349         // }, cursorDelayMillis);
1350         // cursorDelayMillis = Math.min(10 * 1000, 2 * cursorDelayMillis);
1351         // }
1352     }
1353
1354     // --------------------------------------------------------------------------
1355     // SearchOperation
1356     // --------------------------------------------------------------------------
1357
1358     private void searchFinished(final SearchOperation searchOperation) {
1359         if (searchOperation.interrupted.get()) {
1360             Log.d(LOG, "Search operation was interrupted: " + searchOperation);
1361             return;
1362         }
1363         if (searchOperation != this.currentSearchOperation) {
1364             Log.d(LOG, "Stale searchOperation finished: " + searchOperation);
1365             return;
1366         }
1367
1368         final Index.IndexEntry searchResult = searchOperation.searchResult;
1369         Log.d(LOG, "searchFinished: " + searchOperation + ", searchResult=" + searchResult);
1370
1371         currentSearchOperation = null;
1372         uiHandler.postDelayed(new Runnable() {
1373             @Override
1374             public void run() {
1375                 if (currentSearchOperation == null) {
1376                     if (searchResult != null) {
1377                         if (isFiltered()) {
1378                             clearFiltered();
1379                         }
1380                         jumpToRow(searchResult.startRow);
1381                     } else if (searchOperation.multiWordSearchResult != null) {
1382                         // Multi-row search....
1383                         setFiltered(searchOperation);
1384                     } else {
1385                         throw new IllegalStateException("This should never happen.");
1386                     }
1387                 } else {
1388                     Log.d(LOG, "More coming, waiting for currentSearchOperation.");
1389                 }
1390             }
1391         }, 20);
1392     }
1393
1394     private final void jumpToRow(final int row) {
1395         Log.d(LOG, "jumpToRow: " + row + ", refocusSearchText=" + false);
1396         // getListView().requestFocusFromTouch();
1397         getListView().setSelectionFromTop(row, 0);
1398         getListView().setSelected(true);
1399     }
1400
1401     static final Pattern WHITESPACE = Pattern.compile("\\s+");
1402
1403     final class SearchOperation implements Runnable {
1404
1405         final AtomicBoolean interrupted = new AtomicBoolean(false);
1406
1407         final String searchText;
1408
1409         List<String> searchTokens; // filled in for multiWord.
1410
1411         final Index index;
1412
1413         long searchStartMillis;
1414
1415         Index.IndexEntry searchResult;
1416
1417         List<RowBase> multiWordSearchResult;
1418
1419         boolean done = false;
1420
1421         SearchOperation(final String searchText, final Index index) {
1422             this.searchText = StringUtil.normalizeWhitespace(searchText);
1423             this.index = index;
1424         }
1425
1426         public String toString() {
1427             return String.format("SearchOperation(%s,%s)", searchText, interrupted.toString());
1428         }
1429
1430         @Override
1431         public void run() {
1432             try {
1433                 searchStartMillis = System.currentTimeMillis();
1434                 final String[] searchTokenArray = WHITESPACE.split(searchText);
1435                 if (searchTokenArray.length == 1) {
1436                     searchResult = index.findInsertionPoint(searchText, interrupted);
1437                 } else {
1438                     searchTokens = Arrays.asList(searchTokenArray);
1439                     multiWordSearchResult = index.multiWordSearch(searchText, searchTokens,
1440                                             interrupted);
1441                 }
1442                 Log.d(LOG,
1443                       "searchText=" + searchText + ", searchDuration="
1444                       + (System.currentTimeMillis() - searchStartMillis)
1445                       + ", interrupted=" + interrupted.get());
1446                 if (!interrupted.get()) {
1447                     uiHandler.post(new Runnable() {
1448                         @Override
1449                         public void run() {
1450                             searchFinished(SearchOperation.this);
1451                         }
1452                     });
1453                 } else {
1454                     Log.d(LOG, "interrupted, skipping searchFinished.");
1455                 }
1456             } catch (Exception e) {
1457                 Log.e(LOG, "Failure during search (can happen during Activity close.");
1458             } finally {
1459                 synchronized (this) {
1460                     done = true;
1461                     this.notifyAll();
1462                 }
1463             }
1464         }
1465     }
1466
1467     // --------------------------------------------------------------------------
1468     // IndexAdapter
1469     // --------------------------------------------------------------------------
1470
1471     private void showHtml(final List<HtmlEntry> htmlEntries, final String htmlTextToHighlight) {
1472         String html = HtmlEntry.htmlBody(htmlEntries, index.shortName);
1473         // Log.d(LOG, "html=" + html);
1474         startActivityForResult(
1475             HtmlDisplayActivity.getHtmlIntent(getApplicationContext(), String.format(
1476                     "<html><head><meta name=\"viewport\" content=\"width=device-width\"></head><body>%s</body></html>", html),
1477                                               htmlTextToHighlight, false),
1478             0);
1479     }
1480
1481     static ViewGroup.LayoutParams WEIGHT_1 = new LinearLayout.LayoutParams(
1482         ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 1.0f);
1483
1484     static ViewGroup.LayoutParams WEIGHT_0 = new LinearLayout.LayoutParams(
1485         ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 0.0f);
1486
1487     final class IndexAdapter extends BaseAdapter {
1488
1489         private static final float PADDING_DEFAULT_DP = 8;
1490
1491         private static final float PADDING_LARGE_DP = 16;
1492
1493         final Index index;
1494
1495         final List<RowBase> rows;
1496
1497         final Set<String> toHighlight;
1498
1499         private int mPaddingDefault;
1500
1501         private int mPaddingLarge;
1502
1503         IndexAdapter(final Index index) {
1504             this.index = index;
1505             rows = index.rows;
1506             this.toHighlight = null;
1507             getMetrics();
1508         }
1509
1510         IndexAdapter(final Index index, final List<RowBase> rows, final List<String> toHighlight) {
1511             this.index = index;
1512             this.rows = rows;
1513             this.toHighlight = new LinkedHashSet<String>(toHighlight);
1514             getMetrics();
1515         }
1516
1517         private void getMetrics() {
1518             float scale = 1;
1519             // Get the screen's density scale
1520             // The previous method getResources().getDisplayMetrics()
1521             // used to occasionally trigger a null pointer exception,
1522             // so try this instead.
1523             // As it still crashes, add a fallback
1524             try {
1525                 DisplayMetrics dm = new DisplayMetrics();
1526                 getWindowManager().getDefaultDisplay().getMetrics(dm);
1527                 scale = dm.density;
1528             } catch (NullPointerException e)
1529             {}
1530             // Convert the dps to pixels, based on density scale
1531             mPaddingDefault = (int) (PADDING_DEFAULT_DP * scale + 0.5f);
1532             mPaddingLarge = (int) (PADDING_LARGE_DP * scale + 0.5f);
1533         }
1534
1535         @Override
1536         public int getCount() {
1537             return rows.size();
1538         }
1539
1540         @Override
1541         public RowBase getItem(int position) {
1542             return rows.get(position);
1543         }
1544
1545         @Override
1546         public long getItemId(int position) {
1547             return getItem(position).index();
1548         }
1549
1550         @Override
1551         public int getViewTypeCount() {
1552             return 5;
1553         }
1554
1555         @Override
1556         public int getItemViewType(int position) {
1557             final RowBase row = getItem(position);
1558             if (row instanceof PairEntry.Row) {
1559                 final PairEntry entry = ((PairEntry.Row)row).getEntry();
1560                 final int rowCount = entry.pairs.size();
1561                 return rowCount > 1 ? 1 : 0;
1562             } else if (row instanceof TokenRow) {
1563                 final IndexEntry indexEntry = ((TokenRow)row).getIndexEntry();
1564                 return indexEntry.htmlEntries.isEmpty() ? 2 : 3;
1565             } else if (row instanceof HtmlEntry.Row) {
1566                 return 4;
1567             } else {
1568                 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
1569             }
1570         }
1571
1572         @Override
1573         public View getView(int position, View convertView, ViewGroup parent) {
1574             final RowBase row = getItem(position);
1575             if (row instanceof PairEntry.Row) {
1576                 return getView(position, (PairEntry.Row) row, parent, (TableLayout)convertView);
1577             } else if (row instanceof TokenRow) {
1578                 return getView((TokenRow) row, parent, (TextView)convertView);
1579             } else if (row instanceof HtmlEntry.Row) {
1580                 return getView((HtmlEntry.Row) row, parent, (TextView)convertView);
1581             } else {
1582                 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
1583             }
1584         }
1585
1586         private void addBoldSpans(String token, String col1Text, Spannable col1Spannable) {
1587             int startPos = 0;
1588             while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
1589                 col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos, startPos
1590                                       + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1591                 startPos += token.length();
1592             }
1593         }
1594
1595         private TableLayout getView(final int position, PairEntry.Row row, ViewGroup parent,
1596                                     TableLayout result) {
1597             final Context context = parent.getContext();
1598             final PairEntry entry = row.getEntry();
1599             final int rowCount = entry.pairs.size();
1600             if (result == null) {
1601                 result = new TableLayout(context);
1602                 result.setStretchAllColumns(true);
1603                 // Because we have a Button inside a ListView row:
1604                 // http://groups.google.com/group/android-developers/browse_thread/thread/3d96af1530a7d62a?pli=1
1605                 result.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
1606                 result.setClickable(true);
1607                 result.setFocusable(false);
1608                 result.setLongClickable(true);
1609 //                result.setBackgroundResource(android.R.drawable.menuitem_background);
1610
1611                 result.setBackgroundResource(theme.normalRowBg);
1612             } else if (result.getChildCount() > rowCount) {
1613                 result.removeViews(rowCount, result.getChildCount() - rowCount);
1614             }
1615
1616             for (int r = result.getChildCount(); r < rowCount; ++r) {
1617                 final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams(0, LinearLayout.LayoutParams.WRAP_CONTENT);
1618                 layoutParams.leftMargin = mPaddingLarge;
1619
1620                 final TableRow tableRow = new TableRow(result.getContext());
1621
1622                 final TextView col1 = new TextView(tableRow.getContext());
1623                 final TextView col2 = new TextView(tableRow.getContext());
1624                 if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.HONEYCOMB) {
1625                     col1.setTextIsSelectable(true);
1626                     col2.setTextIsSelectable(true);
1627                 }
1628                 col1.setTextColor(textColorFg);
1629                 col2.setTextColor(textColorFg);
1630
1631                 // Set the columns in the table.
1632                 if (r > 0) {
1633                     final TextView bullet = new TextView(tableRow.getContext());
1634                     bullet.setText(" •");
1635                     tableRow.addView(bullet);
1636                 }
1637                 tableRow.addView(col1, layoutParams);
1638                 if (r > 0) {
1639                     final TextView bullet = new TextView(tableRow.getContext());
1640                     bullet.setText(" •");
1641                     tableRow.addView(bullet);
1642                 }
1643                 tableRow.addView(col2, layoutParams);
1644                 col1.setWidth(1);
1645                 col2.setWidth(1);
1646
1647                 col1.setTypeface(typeface);
1648                 col2.setTypeface(typeface);
1649                 col1.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1650                 col2.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1651                 // col2.setBackgroundResource(theme.otherLangBg);
1652
1653                 if (index.swapPairEntries) {
1654                     col2.setOnLongClickListener(textViewLongClickListenerIndex0);
1655                     col1.setOnLongClickListener(textViewLongClickListenerIndex1);
1656                 } else {
1657                     col1.setOnLongClickListener(textViewLongClickListenerIndex0);
1658                     col2.setOnLongClickListener(textViewLongClickListenerIndex1);
1659                 }
1660
1661                 result.addView(tableRow);
1662             }
1663
1664             for (int r = 0; r < rowCount; ++r) {
1665                 final TableRow tableRow = (TableRow)result.getChildAt(r);
1666                 final TextView col1 = (TextView)tableRow.getChildAt(r == 0 ? 0 : 1);
1667                 final TextView col2 = (TextView)tableRow.getChildAt(r == 0 ? 1 : 3);
1668
1669                 // Set what's in the columns.
1670                 final Pair pair = entry.pairs.get(r);
1671                 final String col1Text = index.swapPairEntries ? pair.lang2 : pair.lang1;
1672                 final String col2Text = index.swapPairEntries ? pair.lang1 : pair.lang2;
1673                 final Spannable col1Spannable = new SpannableString(col1Text);
1674                 final Spannable col2Spannable = new SpannableString(col2Text);
1675
1676                 // Bold the token instances in col1.
1677                 if (toHighlight != null) {
1678                     for (final String token : toHighlight) {
1679                         addBoldSpans(token, col1Text, col1Spannable);
1680                     }
1681                 } else
1682                     addBoldSpans(row.getTokenRow(true).getToken(), col1Text, col1Spannable);
1683
1684                 createTokenLinkSpans(col1, col1Spannable, col1Text);
1685                 createTokenLinkSpans(col2, col2Spannable, col2Text);
1686
1687                 col1.setText(col1Spannable);
1688                 col2.setText(col2Spannable);
1689             }
1690
1691             result.setOnClickListener(new TextView.OnClickListener() {
1692                 @Override
1693                 public void onClick(View v) {
1694                     DictionaryActivity.this.onListItemClick(getListView(), v, position, position);
1695                 }
1696             });
1697
1698             return result;
1699         }
1700
1701         private TextView getPossibleLinkToHtmlEntryView(final boolean isTokenRow,
1702                 final String text, final boolean hasMainEntry, final List<HtmlEntry> htmlEntries,
1703                 final String htmlTextToHighlight, ViewGroup parent, TextView textView) {
1704             final Context context = parent.getContext();
1705             if (textView == null) {
1706                 textView = new TextView(context);
1707                 // set up things invariant across one ItemViewType
1708                 // ItemViewTypes handled here are:
1709                 // 2: isTokenRow == true, htmlEntries.isEmpty() == true
1710                 // 3: isTokenRow == true, htmlEntries.isEmpty() == false
1711                 // 4: isTokenRow == false, htmlEntries.isEmpty() == false
1712                 textView.setPadding(isTokenRow ? mPaddingDefault : mPaddingLarge, mPaddingDefault, mPaddingDefault, 0);
1713                 textView.setOnLongClickListener(indexIndex > 0 ? textViewLongClickListenerIndex1 : textViewLongClickListenerIndex0);
1714                 textView.setLongClickable(true);
1715
1716                 textView.setTypeface(typeface);
1717                 if (isTokenRow) {
1718                     textView.setTextAppearance(context, theme.tokenRowFg);
1719                     textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 4 * fontSizeSp / 3);
1720                 } else {
1721                     textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1722                 }
1723                 textView.setTextColor(textColorFg);
1724                 if (!htmlEntries.isEmpty()) {
1725                     textView.setClickable(true);
1726                     textView.setMovementMethod(LinkMovementMethod.getInstance());
1727                 }
1728             }
1729
1730             textView.setBackgroundResource(hasMainEntry ? theme.tokenRowMainBg
1731                                            : theme.tokenRowOtherBg);
1732
1733             // Make it so we can long-click on these token rows, too:
1734             final Spannable textSpannable = new SpannableString(text);
1735             createTokenLinkSpans(textView, textSpannable, text);
1736
1737             if (!htmlEntries.isEmpty()) {
1738                 final ClickableSpan clickableSpan = new ClickableSpan() {
1739                     @Override
1740                     public void onClick(View widget) {
1741                     }
1742                 };
1743                 textSpannable.setSpan(clickableSpan, 0, text.length(),
1744                         Spannable.SPAN_INCLUSIVE_INCLUSIVE);
1745                 textView.setOnClickListener(new OnClickListener() {
1746                     @Override
1747                     public void onClick(View v) {
1748                         showHtml(htmlEntries, htmlTextToHighlight);
1749                     }
1750                 });
1751             }
1752             textView.setText(textSpannable);
1753             return textView;
1754         }
1755
1756         private TextView getView(TokenRow row, ViewGroup parent, final TextView result) {
1757             final IndexEntry indexEntry = row.getIndexEntry();
1758             return getPossibleLinkToHtmlEntryView(true, indexEntry.token, row.hasMainEntry,
1759                                                   indexEntry.htmlEntries, null, parent, result);
1760         }
1761
1762         private TextView getView(HtmlEntry.Row row, ViewGroup parent, final TextView result) {
1763             final HtmlEntry htmlEntry = row.getEntry();
1764             final TokenRow tokenRow = row.getTokenRow(true);
1765             return getPossibleLinkToHtmlEntryView(false,
1766                                                   getString(R.string.seeAlso, htmlEntry.title, htmlEntry.entrySource.getName()),
1767                                                   false, Collections.singletonList(htmlEntry), tokenRow.getToken(), parent,
1768                                                   result);
1769         }
1770
1771     }
1772
1773     static final Pattern CHAR_DASH = Pattern.compile("['\\p{L}\\p{M}\\p{N}]+");
1774
1775     private void createTokenLinkSpans(final TextView textView, final Spannable spannable,
1776                                       final String text) {
1777         // Saw from the source code that LinkMovementMethod sets the selection!
1778         // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.3.1_r1/android/text/method/LinkMovementMethod.java#LinkMovementMethod
1779         textView.setMovementMethod(LinkMovementMethod.getInstance());
1780         final Matcher matcher = CHAR_DASH.matcher(text);
1781         while (matcher.find()) {
1782             spannable.setSpan(new NonLinkClickableSpan(), matcher.start(),
1783                               matcher.end(),
1784                               Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1785         }
1786     }
1787
1788     String selectedSpannableText = null;
1789
1790     int selectedSpannableIndex = -1;
1791
1792     @Override
1793     public boolean onTouchEvent(MotionEvent event) {
1794         selectedSpannableText = null;
1795         selectedSpannableIndex = -1;
1796         return super.onTouchEvent(event);
1797     }
1798
1799     private class TextViewLongClickListener implements OnLongClickListener {
1800         final int index;
1801
1802         private TextViewLongClickListener(final int index) {
1803             this.index = index;
1804         }
1805
1806         @Override
1807         public boolean onLongClick(final View v) {
1808             final TextView textView = (TextView) v;
1809             final int start = textView.getSelectionStart();
1810             final int end = textView.getSelectionEnd();
1811             if (start >= 0 && end >= 0) {
1812                 selectedSpannableText = textView.getText().subSequence(start, end).toString();
1813                 selectedSpannableIndex = index;
1814             }
1815             return false;
1816         }
1817     }
1818
1819     final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1820         0);
1821
1822     final TextViewLongClickListener textViewLongClickListenerIndex1 = new TextViewLongClickListener(
1823         1);
1824
1825     // --------------------------------------------------------------------------
1826     // SearchText
1827     // --------------------------------------------------------------------------
1828
1829     void onSearchTextChange(final String text) {
1830         if ("thadolina".equals(text)) {
1831             final Dialog dialog = new Dialog(getListView().getContext());
1832             dialog.setContentView(R.layout.thadolina_dialog);
1833             dialog.setTitle("Ti amo, amore mio!");
1834             final ImageView imageView = dialog.findViewById(R.id.thadolina_image);
1835             imageView.setOnClickListener(new OnClickListener() {
1836                 @Override
1837                 public void onClick(View v) {
1838                     final Intent intent = new Intent(Intent.ACTION_VIEW);
1839                     intent.setData(Uri.parse("https://sites.google.com/site/cfoxroxvday/vday2012"));
1840                     startActivity(intent);
1841                 }
1842             });
1843             dialog.show();
1844         }
1845         if (dictRaf == null) {
1846             Log.d(LOG, "searchText changed during shutdown, doing nothing.");
1847             return;
1848         }
1849
1850         // if (!searchView.hasFocus()) {
1851         // Log.d(LOG, "searchText changed without focus, doing nothing.");
1852         // return;
1853         // }
1854         Log.d(LOG, "onSearchTextChange: " + text);
1855         if (currentSearchOperation != null) {
1856             Log.d(LOG, "Interrupting currentSearchOperation.");
1857             currentSearchOperation.interrupted.set(true);
1858         }
1859         currentSearchOperation = new SearchOperation(text, index);
1860         searchExecutor.execute(currentSearchOperation);
1861         ((FloatingActionButton)findViewById(R.id.floatSearchButton)).setImageResource(text.length() > 0 ? R.drawable.ic_clear_black_24dp : R.drawable.ic_search_black_24dp);
1862     }
1863
1864     // --------------------------------------------------------------------------
1865     // Filtered results.
1866     // --------------------------------------------------------------------------
1867
1868     boolean isFiltered() {
1869         return rowsToShow != null;
1870     }
1871
1872     void setFiltered(final SearchOperation searchOperation) {
1873         if (nextWordMenuItem != null) {
1874             nextWordMenuItem.setEnabled(false);
1875             previousWordMenuItem.setEnabled(false);
1876         }
1877         rowsToShow = searchOperation.multiWordSearchResult;
1878         setListAdapter(new IndexAdapter(index, rowsToShow, searchOperation.searchTokens));
1879     }
1880
1881     void clearFiltered() {
1882         if (nextWordMenuItem != null) {
1883             nextWordMenuItem.setEnabled(true);
1884             previousWordMenuItem.setEnabled(true);
1885         }
1886         setListAdapter(new IndexAdapter(index));
1887         rowsToShow = null;
1888     }
1889
1890 }