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

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