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

   1 // Copyright 2011 Google Inc. All Rights Reserved.
   2 // Some Parts Copyright 2013 Dominik Köppl
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 //     http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 package com.hughes.android.dictionary;
  16
  17 import android.annotation.SuppressLint;
  18 import android.app.Dialog;
  19 import android.app.SearchManager;
  20 import android.content.Context;
  21 import android.content.Intent;
  22 import android.content.SharedPreferences;
  23 import android.graphics.Color;
  24 import android.graphics.Typeface;
  25 import android.net.Uri;
  26 import android.os.Bundle;
  27 import android.os.Handler;
  28 import android.preference.PreferenceManager;
  29 import android.speech.tts.TextToSpeech;
  30 import android.speech.tts.TextToSpeech.OnInitListener;
  31 import android.support.v4.view.MenuItemCompat;
  32 import android.support.v7.app.ActionBar;
  33 import android.support.v7.app.ActionBarActivity;
  34 import android.support.v7.widget.SearchView;
  35 import android.support.v7.widget.SearchView.OnQueryTextListener;
  36 import android.support.v7.widget.Toolbar;
  37 import android.text.ClipboardManager;
  38 import android.text.InputType;
  39 import android.text.Spannable;
  40 import android.text.method.LinkMovementMethod;
  41 import android.text.style.ClickableSpan;
  42 import android.text.style.StyleSpan;
  43 import android.util.Log;
  44 import android.util.TypedValue;
  45 import android.view.ContextMenu;
  46 import android.view.ContextMenu.ContextMenuInfo;
  47 import android.view.Gravity;
  48 import android.view.KeyEvent;
  49 import android.view.Menu;
  50 import android.view.MenuItem;
  51 import android.view.MenuItem.OnMenuItemClickListener;
  52 import android.view.MotionEvent;
  53 import android.view.View;
  54 import android.view.View.OnClickListener;
  55 import android.view.View.OnLongClickListener;
  56 import android.view.ViewGroup;
  57 import android.view.WindowManager;
  58 import android.view.inputmethod.EditorInfo;
  59 import android.view.inputmethod.InputMethodManager;
  60 import android.widget.AdapterView;
  61 import android.widget.AdapterView.AdapterContextMenuInfo;
  62 import android.widget.AdapterView.OnItemClickListener;
  63 import android.widget.BaseAdapter;
  64 import android.widget.Button;
  65 import android.widget.FrameLayout;
  66 import android.widget.ImageButton;
  67 import android.widget.ImageView;
  68 import android.widget.ImageView.ScaleType;
  69 import android.widget.LinearLayout;
  70 import android.widget.ListAdapter;
  71 import android.widget.ListView;
  72 import android.widget.TableLayout;
  73 import android.widget.TableRow;
  74 import android.widget.TextView;
  75 import android.widget.TextView.BufferType;
  76 import android.widget.Toast;
  77
  78 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  79 import com.hughes.android.dictionary.engine.Dictionary;
  80 import com.hughes.android.dictionary.engine.EntrySource;
  81 import com.hughes.android.dictionary.engine.HtmlEntry;
  82 import com.hughes.android.dictionary.engine.Index;
  83 import com.hughes.android.dictionary.engine.Index.IndexEntry;
  84 import com.hughes.android.dictionary.engine.Language.LanguageResources;
  85 import com.hughes.android.dictionary.engine.PairEntry;
  86 import com.hughes.android.dictionary.engine.PairEntry.Pair;
  87 import com.hughes.android.dictionary.engine.RowBase;
  88 import com.hughes.android.dictionary.engine.TokenRow;
  89 import com.hughes.android.dictionary.engine.TransliteratorManager;
  90 import com.hughes.android.util.IntentLauncher;
  91 import com.hughes.android.util.NonLinkClickableSpan;
  92 import com.hughes.util.StringUtil;
  93
  94 import java.io.File;
  95 import java.io.FileWriter;
  96 import java.io.IOException;
  97 import java.io.PrintWriter;
  98 import java.io.RandomAccessFile;
  99 import java.text.SimpleDateFormat;
 100 import java.util.Arrays;
 101 import java.util.Collections;
 102 import java.util.Date;
 103 import java.util.HashMap;
 104 import java.util.LinkedHashSet;
 105 import java.util.List;
 106 import java.util.Locale;
 107 import java.util.Random;
 108 import java.util.Set;
 109 import java.util.concurrent.Executor;
 110 import java.util.concurrent.Executors;
 111 import java.util.concurrent.ThreadFactory;
 112 import java.util.concurrent.atomic.AtomicBoolean;
 113 import java.util.regex.Matcher;
 114 import java.util.regex.Pattern;
 115
 116 public class DictionaryActivity extends ActionBarActivity {
 117
 118     static final String LOG = "QuickDic";
 119
 120     DictionaryApplication application;
 121
 122     File dictFile = null;
 123     RandomAccessFile dictRaf = null;
 124
 125     Dictionary dictionary = null;
 126
 127     int indexIndex = 0;
 128
 129     Index index = null;
 130
 131     List<RowBase> rowsToShow = null; // if not null, just show these rows.
 132
 133     final Random rand = new Random();
 134
 135     final Handler uiHandler = new Handler();
 136
 137     private final Executor searchExecutor = Executors.newSingleThreadExecutor(new ThreadFactory() {
 138         @Override
 139         public Thread newThread(Runnable r) {
 140             return new Thread(r, "searchExecutor");
 141         }
 142     });
 143
 144     private SearchOperation currentSearchOperation = null;
 145
 146     TextToSpeech textToSpeech;
 147     volatile boolean ttsReady;
 148
 149     Typeface typeface;
 150     DictionaryApplication.Theme theme = DictionaryApplication.Theme.LIGHT;
 151     int textColorFg = Color.BLACK;
 152     int fontSizeSp;
 153
 154     private ListView listView;
 155     private ListView getListView() {
 156         if (listView == null) {
 157             listView = (ListView)findViewById(android.R.id.list);
 158         }
 159         return listView;
 160     }
 161
 162     private void setListAdapter(ListAdapter adapter) {
 163         getListView().setAdapter(adapter);
 164     }
 165
 166     private ListAdapter getListAdapter() {
 167         return getListView().getAdapter();
 168     }
 169
 170     SearchView searchView;
 171     ImageButton languageButton;
 172     SearchView.OnQueryTextListener onQueryTextListener;
 173
 174     MenuItem nextWordMenuItem, previousWordMenuItem, randomWordMenuItem;
 175
 176     // Never null.
 177     private File wordList = null;
 178     private boolean saveOnlyFirstSubentry = false;
 179     private boolean clickOpensContextMenu = false;
 180
 181     // Visible for testing.
 182     ListAdapter indexAdapter = null;
 183
 184     /**
 185      * For some languages, loading the transliterators used in this search takes
 186      * a long time, so we fire it up on a different thread, and don't invoke it
 187      * from the main thread until it's already finished once.
 188      */
 189     private volatile boolean indexPrepFinished = false;
 190
 191     public DictionaryActivity() {
 192     }
 193
 194     public static Intent getLaunchIntent(Context c, final File dictFile, final String indexShortName,
 195             final String searchToken) {
 196         final Intent intent = new Intent(c, DictionaryActivity.class);
 197         intent.putExtra(C.DICT_FILE, dictFile.getPath());
 198         intent.putExtra(C.INDEX_SHORT_NAME, indexShortName);
 199         intent.putExtra(C.SEARCH_TOKEN, searchToken);
 200         return intent;
 201     }
 202
 203     @Override
 204     protected void onSaveInstanceState(final Bundle outState) {
 205         super.onSaveInstanceState(outState);
 206         Log.d(LOG, "onSaveInstanceState: " + searchView.getQuery().toString());
 207         outState.putString(C.INDEX_SHORT_NAME, index.shortName);
 208         outState.putString(C.SEARCH_TOKEN, searchView.getQuery().toString());
 209     }
 210
 211     @Override
 212     public void onCreate(Bundle savedInstanceState) {
 213         // This needs to be before super.onCreate, otherwise ActionbarSherlock
 214         // doesn't makes the background of the actionbar white when you're
 215         // in the dark theme.
 216         setTheme(((DictionaryApplication) getApplication()).getSelectedTheme().themeId);
 217
 218         Log.d(LOG, "onCreate:" + this);
 219         super.onCreate(savedInstanceState);
 220
 221         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 222
 223         // Don't auto-launch if this fails.
 224         prefs.edit().remove(C.DICT_FILE).commit();
 225
 226         setContentView(R.layout.dictionary_activity);
 227
 228         application = (DictionaryApplication) getApplication();
 229         theme = application.getSelectedTheme();
 230         textColorFg = getResources().getColor(theme.tokenRowFgColor);
 231
 232         final Intent intent = getIntent();
 233         String intentAction = intent.getAction();
 234         /**
 235          * @author Dominik Köppl Querying the Intent
 236          *         com.hughes.action.ACTION_SEARCH_DICT is the advanced query
 237          *         Arguments: SearchManager.QUERY -> the phrase to search from
 238          *         -> language in which the phrase is written to -> to which
 239          *         language shall be translated
 240          */
 241         if (intentAction != null && intentAction.equals("com.hughes.action.ACTION_SEARCH_DICT"))
 242         {
 243             String query = intent.getStringExtra(SearchManager.QUERY);
 244             String from = intent.getStringExtra("from");
 245             if (from != null)
 246                 from = from.toLowerCase(Locale.US);
 247             String to = intent.getStringExtra("to");
 248             if (to != null)
 249                 to = to.toLowerCase(Locale.US);
 250             if (query != null)
 251             {
 252                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 253             }
 254             if (intent.getStringExtra(C.DICT_FILE) == null && (from != null || to != null))
 255             {
 256                 Log.d(LOG, "DictSearch: from: " + from + " to " + to);
 257                 List<DictionaryInfo> dicts = application.getDictionariesOnDevice(null);
 258                 for (DictionaryInfo info : dicts)
 259                 {
 260                     boolean hasFrom = from == null;
 261                     boolean hasTo = to == null;
 262                     for (IndexInfo index : info.indexInfos)
 263                     {
 264                         if (!hasFrom && index.shortName.toLowerCase(Locale.US).equals(from))
 265                             hasFrom = true;
 266                         if (!hasTo && index.shortName.toLowerCase(Locale.US).equals(to))
 267                             hasTo = true;
 268                     }
 269                     if (hasFrom && hasTo)
 270                     {
 271                         if (from != null)
 272                         {
 273                             int which_index = 0;
 274                             for (; which_index < info.indexInfos.size(); ++which_index)
 275                             {
 276                                 if (info.indexInfos.get(which_index).shortName.toLowerCase(
 277                                         Locale.US).equals(from))
 278                                     break;
 279                             }
 280                             intent.putExtra(C.INDEX_SHORT_NAME,
 281                                     info.indexInfos.get(which_index).shortName);
 282
 283                         }
 284                         intent.putExtra(C.DICT_FILE, application.getPath(info.uncompressedFilename)
 285                                 .toString());
 286                         break;
 287                     }
 288                 }
 289
 290             }
 291         }
 292         /**
 293          * @author Dominik Köppl Querying the Intent Intent.ACTION_SEARCH is a
 294          *         simple query Arguments follow from android standard (see
 295          *         documentation)
 296          */
 297         if (intentAction != null && intentAction.equals(Intent.ACTION_SEARCH))
 298         {
 299             String query = intent.getStringExtra(SearchManager.QUERY);
 300             if (query != null)
 301                 getIntent().putExtra(C.SEARCH_TOKEN, query);
 302         }
 303         /**
 304          * @author Dominik Köppl If no dictionary is chosen, use the default
 305          *         dictionary specified in the preferences If this step does
 306          *         fail (no default directory specified), show a toast and
 307          *         abort.
 308          */
 309         if (intent.getStringExtra(C.DICT_FILE) == null)
 310         {
 311             String dictfile = prefs.getString(getString(R.string.defaultDicKey), null);
 312             if (dictfile != null)
 313                 intent.putExtra(C.DICT_FILE, application.getPath(dictfile).toString());
 314         }
 315         String dictFilename = intent.getStringExtra(C.DICT_FILE);
 316
 317         if (dictFilename == null)
 318         {
 319             Toast.makeText(this, getString(R.string.no_dict_file), Toast.LENGTH_LONG).show();
 320             startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 321             finish();
 322             return;
 323         }
 324         if (dictFilename != null)
 325             dictFile = new File(dictFilename);
 326
 327         ttsReady = false;
 328         textToSpeech = new TextToSpeech(getApplicationContext(), new OnInitListener() {
 329             @Override
 330             public void onInit(int status) {
 331                 ttsReady = true;
 332                 updateTTSLanguage(indexIndex);
 333             }
 334         });
 335
 336         try {
 337             final String name = application.getDictionaryName(dictFile.getName());
 338             this.setTitle("QuickDic: " + name);
 339             dictRaf = new RandomAccessFile(dictFile, "r");
 340             dictionary = new Dictionary(dictRaf);
 341         } catch (Exception e) {
 342             Log.e(LOG, "Unable to load dictionary.", e);
 343             if (dictRaf != null) {
 344                 try {
 345                     dictRaf.close();
 346                 } catch (IOException e1) {
 347                     Log.e(LOG, "Unable to close dictRaf.", e1);
 348                 }
 349                 dictRaf = null;
 350             }
 351             Toast.makeText(this, getString(R.string.invalidDictionary, "", e.getMessage()),
 352                     Toast.LENGTH_LONG).show();
 353             startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 354             finish();
 355             return;
 356         }
 357         String targetIndex = intent.getStringExtra(C.INDEX_SHORT_NAME);
 358         if (savedInstanceState != null && savedInstanceState.getString(C.INDEX_SHORT_NAME) != null) {
 359             targetIndex = savedInstanceState.getString(C.INDEX_SHORT_NAME);
 360         }
 361         indexIndex = 0;
 362         for (int i = 0; i < dictionary.indices.size(); ++i) {
 363             if (dictionary.indices.get(i).shortName.equals(targetIndex)) {
 364                 indexIndex = i;
 365                 break;
 366             }
 367         }
 368         Log.d(LOG, "Loading index " + indexIndex);
 369         index = dictionary.indices.get(indexIndex);
 370         getListView().setEmptyView(findViewById(android.R.id.empty));
 371         setListAdapter(new IndexAdapter(index));
 372
 373         // Pre-load the collators.
 374         new Thread(new Runnable() {
 375             public void run() {
 376                 android.os.Process.setThreadPriority(android.os.Process.THREAD_PRIORITY_BACKGROUND);
 377                 final long startMillis = System.currentTimeMillis();
 378                 try {
 379                     TransliteratorManager.init(new TransliteratorManager.Callback() {
 380                         @Override
 381                         public void onTransliteratorReady() {
 382                             uiHandler.post(new Runnable() {
 383                                 @Override
 384                                 public void run() {
 385                                     onSearchTextChange(searchView.getQuery().toString());
 386                                 }
 387                             });
 388                         }
 389                     });
 390
 391                     for (final Index index : dictionary.indices) {
 392                         final String searchToken = index.sortedIndexEntries.get(0).token;
 393                         final IndexEntry entry = index.findExact(searchToken);
 394                         if (entry == null || !searchToken.equals(entry.token)) {
 395                             Log.e(LOG, "Couldn't find token: " + searchToken + ", " + (entry == null ? "null" : entry.token));
 396                         }
 397                     }
 398                     indexPrepFinished = true;
 399                 } catch (Exception e) {
 400                     Log.w(LOG,
 401                             "Exception while prepping.  This can happen if dictionary is closed while search is happening.");
 402                 }
 403                 Log.d(LOG, "Prepping indices took:" + (System.currentTimeMillis() - startMillis));
 404             }
 405         }).start();
 406
 407         String fontName = prefs.getString(getString(R.string.fontKey), "FreeSerif.otf.jpg");
 408         if ("SYSTEM".equals(fontName)) {
 409             typeface = Typeface.DEFAULT;
 410         } else if ("SERIF".equals(fontName)) {
 411             typeface = Typeface.SERIF;
 412         } else if ("SANS_SERIF".equals(fontName)) {
 413             typeface = Typeface.SANS_SERIF;
 414         } else if ("MONOSPACE".equals(fontName)) {
 415             typeface = Typeface.MONOSPACE;
 416         } else {
 417             if ("FreeSerif.ttf.jpg".equals(fontName)) {
 418                 fontName = "FreeSerif.otf.jpg";
 419             }
 420             try {
 421                 typeface = Typeface.createFromAsset(getAssets(), fontName);
 422             } catch (Exception e) {
 423                 Log.w(LOG, "Exception trying to use typeface, using default.", e);
 424                 Toast.makeText(this, getString(R.string.fontFailure, e.getLocalizedMessage()),
 425                         Toast.LENGTH_LONG).show();
 426             }
 427         }
 428         if (typeface == null) {
 429             Log.w(LOG, "Unable to create typeface, using default.");
 430             typeface = Typeface.DEFAULT;
 431         }
 432         final String fontSize = prefs.getString(getString(R.string.fontSizeKey), "14");
 433         try {
 434             fontSizeSp = Integer.parseInt(fontSize.trim());
 435         } catch (NumberFormatException e) {
 436             fontSizeSp = 14;
 437         }
 438
 439         // ContextMenu.
 440         registerForContextMenu(getListView());
 441
 442         // Cache some prefs.
 443         wordList = application.getWordListFile();
 444         saveOnlyFirstSubentry = prefs.getBoolean(getString(R.string.saveOnlyFirstSubentryKey),
 445                 false);
 446         clickOpensContextMenu = prefs.getBoolean(getString(R.string.clickOpensContextMenuKey),
 447                 false);
 448         Log.d(LOG, "wordList=" + wordList + ", saveOnlyFirstSubentry=" + saveOnlyFirstSubentry);
 449
 450         onCreateSetupActionBarAndSearchView();
 451
 452         View floatSwapButton = findViewById(R.id.floatSwapButton);
 453         floatSwapButton.setOnClickListener(new OnClickListener() {
 454             @Override
 455             public void onClick(View arg0) {
 456                 onLanguageButtonClick();
 457             }
 458         });
 459         floatSwapButton.setOnLongClickListener(new OnLongClickListener() {
 460             @Override
 461             public boolean onLongClick(View v) {
 462                 onLanguageButtonLongClick(v.getContext());
 463                 return true;
 464             }
 465         });
 466
 467         // Set the search text from the intent, then the saved state.
 468         String text = getIntent().getStringExtra(C.SEARCH_TOKEN);
 469         if (savedInstanceState != null) {
 470             text = savedInstanceState.getString(C.SEARCH_TOKEN);
 471         }
 472         if (text == null) {
 473             text = "";
 474         }
 475         setSearchText(text, true);
 476         Log.d(LOG, "Trying to restore searchText=" + text);
 477
 478         setDictionaryPrefs(this, dictFile, index.shortName, searchView.getQuery().toString());
 479
 480         updateLangButton();
 481         searchView.requestFocus();
 482
 483         // http://stackoverflow.com/questions/2833057/background-listview-becomes-black-when-scrolling
 484 //        getListView().setCacheColorHint(0);
 485     }
 486
 487     private void onCreateSetupActionBarAndSearchView() {
 488         ActionBar actionBar = getSupportActionBar();
 489         actionBar.setDisplayShowTitleEnabled(false);
 490         actionBar.setDisplayShowHomeEnabled(false);
 491         actionBar.setDisplayHomeAsUpEnabled(false);
 492
 493         final LinearLayout customSearchView = new LinearLayout(getSupportActionBar().getThemedContext());
 494
 495         final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 496                 ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 497         customSearchView.setLayoutParams(layoutParams);
 498
 499         listView.setOnItemClickListener(new OnItemClickListener() {
 500             @Override
 501             public void onItemClick(AdapterView<?> parent, View view, int row, long id) {
 502                 onListItemClick(getListView(), view, row, id);
 503             }
 504         });
 505
 506         languageButton = new ImageButton(customSearchView.getContext());
 507         languageButton.setScaleType(ScaleType.FIT_CENTER);
 508         languageButton.setOnClickListener(new OnClickListener() {
 509             @Override
 510             public void onClick(View arg0) {
 511                 onLanguageButtonClick();
 512             }
 513         });
 514         languageButton.setOnLongClickListener(new OnLongClickListener() {
 515             @Override
 516             public boolean onLongClick(View v) {
 517                 onLanguageButtonLongClick(v.getContext());
 518                 return true;
 519             }
 520         });
 521         languageButton.setAdjustViewBounds(true);
 522         LinearLayout.LayoutParams lpb = new LinearLayout.LayoutParams(application.languageButtonPixels, LinearLayout.LayoutParams.MATCH_PARENT);
 523         customSearchView.addView(languageButton, lpb);
 524
 525         searchView = new SearchView(getSupportActionBar().getThemedContext());
 526
 527         // Get rid of search icon, it takes up too much space.
 528         // There is still text saying "search" in the search field.
 529         searchView.setIconifiedByDefault(true);
 530         searchView.setIconified(false);
 531
 532         searchView.setQueryHint(getString(R.string.searchText));
 533         searchView.setSubmitButtonEnabled(false);
 534         searchView.setInputType(InputType.TYPE_CLASS_TEXT);
 535         searchView.setImeOptions(
 536                 EditorInfo.IME_ACTION_DONE |
 537                         EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 538                         // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 539                         // 11
 540                         EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 541         onQueryTextListener = new OnQueryTextListener() {
 542             @Override
 543             public boolean onQueryTextSubmit(String query) {
 544                 Log.d(LOG, "OnQueryTextListener: onQueryTextSubmit: " + searchView.getQuery());
 545                 hideKeyboard();
 546                 return true;
 547             }
 548
 549             @Override
 550             public boolean onQueryTextChange(String newText) {
 551                 Log.d(LOG, "OnQueryTextListener: onQueryTextChange: " + searchView.getQuery());
 552                 onSearchTextChange(searchView.getQuery().toString());
 553                 return true;
 554             }
 555         };
 556         searchView.setOnQueryTextListener(onQueryTextListener);
 557         searchView.setFocusable(true);
 558         LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(0,
 559                 FrameLayout.LayoutParams.WRAP_CONTENT, 1);
 560         customSearchView.addView(searchView, lp);
 561
 562         actionBar.setCustomView(customSearchView);
 563         actionBar.setDisplayShowCustomEnabled(true);
 564
 565         // Avoid wasting space on large left inset
 566         Toolbar tb = (Toolbar)customSearchView.getParent();
 567         tb.setContentInsetsRelative(0, 0);
 568     }
 569
 570     @Override
 571     protected void onResume() {
 572         Log.d(LOG, "onResume");
 573         super.onResume();
 574         if (PreferenceActivity.prefsMightHaveChanged) {
 575             PreferenceActivity.prefsMightHaveChanged = false;
 576             finish();
 577             startActivity(getIntent());
 578         }
 579         showKeyboard();
 580     }
 581
 582     @Override
 583     protected void onPause() {
 584         super.onPause();
 585     }
 586
 587     @Override
 588     /**
 589      * Invoked when MyWebView returns, since the user might have clicked some
 590      * hypertext in the MyWebView.
 591      */
 592     protected void onActivityResult(int requestCode, int resultCode, Intent result) {
 593         super.onActivityResult(requestCode, resultCode, result);
 594         if (result != null && result.hasExtra(C.SEARCH_TOKEN)) {
 595             Log.d(LOG, "onActivityResult: " + result.getStringExtra(C.SEARCH_TOKEN));
 596             jumpToTextFromHyperLink(result.getStringExtra(C.SEARCH_TOKEN), indexIndex);
 597         }
 598     }
 599
 600     private static void setDictionaryPrefs(final Context context, final File dictFile,
 601             final String indexShortName, final String searchToken) {
 602         final SharedPreferences.Editor prefs = PreferenceManager.getDefaultSharedPreferences(
 603                 context).edit();
 604         prefs.putString(C.DICT_FILE, dictFile.getPath());
 605         prefs.putString(C.INDEX_SHORT_NAME, indexShortName);
 606         prefs.putString(C.SEARCH_TOKEN, ""); // Don't need to save search token.
 607         prefs.commit();
 608     }
 609
 610     @Override
 611     protected void onDestroy() {
 612         super.onDestroy();
 613         if (dictRaf == null) {
 614             return;
 615         }
 616
 617         final SearchOperation searchOperation = currentSearchOperation;
 618         currentSearchOperation = null;
 619
 620         // Before we close the RAF, we have to wind the current search down.
 621         if (searchOperation != null) {
 622             Log.d(LOG, "Interrupting search to shut down.");
 623             currentSearchOperation = null;
 624             searchOperation.interrupted.set(true);
 625         }
 626
 627         try {
 628             Log.d(LOG, "Closing RAF.");
 629             dictRaf.close();
 630         } catch (IOException e) {
 631             Log.e(LOG, "Failed to close dictionary", e);
 632         }
 633         dictRaf = null;
 634     }
 635
 636     // --------------------------------------------------------------------------
 637     // Buttons
 638     // --------------------------------------------------------------------------
 639
 640     private void showKeyboard() {
 641         // For some reason, this doesn't always work the first time.
 642         // One way to replicate the problem:
 643         // Press the "task switch" button repeatedly to pause and resume
 644         for (int delay = 1; delay <= 101; delay += 100) {
 645             searchView.postDelayed(new Runnable() {
 646                 @Override
 647                 public void run() {
 648                     Log.d(LOG, "Trying to show soft keyboard.");
 649                     final boolean searchTextHadFocus = searchView.hasFocus();
 650                     searchView.requestFocusFromTouch();
 651                     final InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 652                     manager.showSoftInput(searchView, InputMethodManager.SHOW_IMPLICIT);
 653                     if (!searchTextHadFocus) {
 654                         defocusSearchText();
 655                     }
 656                 }
 657             }, delay);
 658         }
 659     }
 660
 661     private void hideKeyboard() {
 662         Log.d(LOG, "Hide soft keyboard.");
 663         searchView.clearFocus();
 664         InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 665         manager.hideSoftInputFromWindow(searchView.getWindowToken(), 0);
 666     }
 667
 668     void updateLangButton() {
 669         final LanguageResources languageResources =
 670                 DictionaryApplication.isoCodeToResources.get(index.shortName);
 671         if (languageResources != null && languageResources.flagId != 0) {
 672             languageButton.setImageResource(languageResources.flagId);
 673         } else {
 674             if (indexIndex % 2 == 0) {
 675                 languageButton.setImageResource(android.R.drawable.ic_media_next);
 676             } else {
 677                 languageButton.setImageResource(android.R.drawable.ic_media_previous);
 678             }
 679         }
 680         updateTTSLanguage(indexIndex);
 681     }
 682
 683     private void updateTTSLanguage(int i) {
 684         if (!ttsReady || index == null || textToSpeech == null) {
 685             Log.d(LOG, "Can't updateTTSLanguage.");
 686             return;
 687         }
 688         final Locale locale = new Locale(dictionary.indices.get(i).sortLanguage.getIsoCode());
 689         Log.d(LOG, "Setting TTS locale to: " + locale);
 690         try {
 691         final int ttsResult = textToSpeech.setLanguage(locale);
 692         if (ttsResult != TextToSpeech.LANG_AVAILABLE &&
 693                 ttsResult != TextToSpeech.LANG_COUNTRY_AVAILABLE) {
 694             Log.e(LOG, "TTS not available in this language: ttsResult=" + ttsResult);
 695         }
 696         } catch (Exception e) {
 697             Toast.makeText(this, getString(R.string.TTSbroken), Toast.LENGTH_LONG).show();
 698         }
 699     }
 700
 701     void onLanguageButtonClick() {
 702         if (dictionary.indices.size() == 1) {
 703             // No need to work to switch indices.
 704             return;
 705         }
 706         if (currentSearchOperation != null) {
 707             currentSearchOperation.interrupted.set(true);
 708             currentSearchOperation = null;
 709         }
 710         setIndexAndSearchText((indexIndex + 1) % dictionary.indices.size(),
 711                 searchView.getQuery().toString(), false);
 712     }
 713
 714     void onLanguageButtonLongClick(final Context context) {
 715         final Dialog dialog = new Dialog(context);
 716         dialog.setContentView(R.layout.select_dictionary_dialog);
 717         dialog.setTitle(R.string.selectDictionary);
 718
 719         final List<DictionaryInfo> installedDicts = application.getDictionariesOnDevice(null);
 720
 721         ListView listView = (ListView) dialog.findViewById(android.R.id.list);
 722         final Button button = new Button(listView.getContext());
 723         final String name = getString(R.string.dictionaryManager);
 724         button.setText(name);
 725         final IntentLauncher intentLauncher = new IntentLauncher(listView.getContext(),
 726                 DictionaryManagerActivity.getLaunchIntent(getApplicationContext())) {
 727             @Override
 728             protected void onGo() {
 729                 dialog.dismiss();
 730                 DictionaryActivity.this.finish();
 731             }
 732         };
 733         button.setOnClickListener(intentLauncher);
 734         listView.addHeaderView(button);
 735
 736         listView.setAdapter(new BaseAdapter() {
 737             @Override
 738             public View getView(int position, View convertView, ViewGroup parent) {
 739                 final DictionaryInfo dictionaryInfo = getItem(position);
 740
 741                 final LinearLayout result = new LinearLayout(parent.getContext());
 742
 743                 for (int i = 0; i < dictionaryInfo.indexInfos.size(); ++i) {
 744                     final IndexInfo indexInfo = dictionaryInfo.indexInfos.get(i);
 745                     final View button = application.createButton(parent.getContext(),
 746                             dictionaryInfo, indexInfo);
 747                     final IntentLauncher intentLauncher = new IntentLauncher(parent.getContext(),
 748                             getLaunchIntent(getApplicationContext(),
 749                                     application.getPath(dictionaryInfo.uncompressedFilename),
 750                                     indexInfo.shortName, searchView.getQuery().toString())) {
 751                         @Override
 752                         protected void onGo() {
 753                             dialog.dismiss();
 754                             DictionaryActivity.this.finish();
 755                         }
 756                     };
 757                     button.setOnClickListener(intentLauncher);
 758                     if (i == indexIndex && dictFile != null &&
 759                         dictFile.getName().equals(dictionaryInfo.uncompressedFilename)) {
 760                         button.setPressed(true);
 761                     }
 762                     result.addView(button);
 763                 }
 764
 765                 final TextView nameView = new TextView(parent.getContext());
 766                 final String name = application
 767                         .getDictionaryName(dictionaryInfo.uncompressedFilename);
 768                 nameView.setText(name);
 769                 final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 770                         ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 771                 layoutParams.width = 0;
 772                 layoutParams.weight = 1.0f;
 773                 nameView.setLayoutParams(layoutParams);
 774                 nameView.setGravity(Gravity.CENTER_VERTICAL);
 775                 result.addView(nameView);
 776                 return result;
 777             }
 778
 779             @Override
 780             public long getItemId(int position) {
 781                 return position;
 782             }
 783
 784             @Override
 785             public DictionaryInfo getItem(int position) {
 786                 return installedDicts.get(position);
 787             }
 788
 789             @Override
 790             public int getCount() {
 791                 return installedDicts.size();
 792             }
 793         });
 794         dialog.show();
 795     }
 796
 797     void onUpDownButton(final boolean up) {
 798         if (isFiltered()) {
 799             return;
 800         }
 801         final int firstVisibleRow = getListView().getFirstVisiblePosition();
 802         final RowBase row = index.rows.get(firstVisibleRow);
 803         final TokenRow tokenRow = row.getTokenRow(true);
 804         final int destIndexEntry;
 805         if (up) {
 806             if (row != tokenRow) {
 807                 destIndexEntry = tokenRow.referenceIndex;
 808             } else {
 809                 destIndexEntry = Math.max(tokenRow.referenceIndex - 1, 0);
 810             }
 811         } else {
 812             // Down
 813             destIndexEntry = Math.min(tokenRow.referenceIndex + 1, index.sortedIndexEntries.size() - 1);
 814         }
 815         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 816         Log.d(LOG, "onUpDownButton, destIndexEntry=" + dest.token);
 817         setSearchText(dest.token, false);
 818         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 819         defocusSearchText();
 820     }
 821
 822     void onRandomWordButton() {
 823         int destIndexEntry = rand.nextInt(index.sortedIndexEntries.size());
 824         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 825         setSearchText(dest.token, false);
 826         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 827         defocusSearchText();
 828     }
 829
 830     // --------------------------------------------------------------------------
 831     // Options Menu
 832     // --------------------------------------------------------------------------
 833
 834     final Random random = new Random();
 835
 836     @Override
 837     public boolean onCreateOptionsMenu(final Menu menu) {
 838
 839         if (PreferenceManager.getDefaultSharedPreferences(this)
 840                 .getBoolean(getString(R.string.showPrevNextButtonsKey), true)) {
 841             // Next word.
 842             nextWordMenuItem = menu.add(getString(R.string.nextWord))
 843                     .setIcon(R.drawable.arrow_down_float);
 844             MenuItemCompat.setShowAsAction(nextWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
 845             nextWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 846                 @Override
 847                 public boolean onMenuItemClick(MenuItem item) {
 848                     onUpDownButton(false);
 849                     return true;
 850                 }
 851             });
 852
 853             // Previous word.
 854             previousWordMenuItem = menu.add(getString(R.string.previousWord))
 855                     .setIcon(R.drawable.arrow_up_float);
 856             MenuItemCompat.setShowAsAction(previousWordMenuItem, MenuItem.SHOW_AS_ACTION_IF_ROOM);
 857             previousWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 858                 @Override
 859                 public boolean onMenuItemClick(MenuItem item) {
 860                     onUpDownButton(true);
 861                     return true;
 862                 }
 863             });
 864         }
 865
 866         randomWordMenuItem = menu.add(getString(R.string.randomWord));
 867         randomWordMenuItem.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 868             @Override
 869             public boolean onMenuItemClick(MenuItem item) {
 870                 onRandomWordButton();
 871                 return true;
 872             }
 873         });
 874
 875         application.onCreateGlobalOptionsMenu(this, menu);
 876
 877         {
 878             final MenuItem dictionaryManager = menu.add(getString(R.string.dictionaryManager));
 879             MenuItemCompat.setShowAsAction(dictionaryManager, MenuItem.SHOW_AS_ACTION_NEVER);
 880             dictionaryManager.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 881                 public boolean onMenuItemClick(final MenuItem menuItem) {
 882                     startActivity(DictionaryManagerActivity.getLaunchIntent(getApplicationContext()));
 883                     finish();
 884                     return false;
 885                 }
 886             });
 887         }
 888
 889         {
 890             final MenuItem aboutDictionary = menu.add(getString(R.string.aboutDictionary));
 891             MenuItemCompat.setShowAsAction(aboutDictionary, MenuItem.SHOW_AS_ACTION_NEVER);
 892             aboutDictionary.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 893                 public boolean onMenuItemClick(final MenuItem menuItem) {
 894                     final Context context = getListView().getContext();
 895                     final Dialog dialog = new Dialog(context);
 896                     dialog.setContentView(R.layout.about_dictionary_dialog);
 897                     final TextView textView = (TextView) dialog.findViewById(R.id.text);
 898
 899                     final String name = application.getDictionaryName(dictFile.getName());
 900                     dialog.setTitle(name);
 901
 902                     final StringBuilder builder = new StringBuilder();
 903                     final DictionaryInfo dictionaryInfo = dictionary.getDictionaryInfo();
 904                     dictionaryInfo.uncompressedBytes = dictFile.length();
 905                     if (dictionaryInfo != null) {
 906                         builder.append(dictionaryInfo.dictInfo).append("\n\n");
 907                         builder.append(getString(R.string.dictionaryPath, dictFile.getPath()))
 908                                 .append("\n");
 909                         builder.append(
 910                                 getString(R.string.dictionarySize, dictionaryInfo.uncompressedBytes))
 911                                 .append("\n");
 912                         builder.append(
 913                                 getString(R.string.dictionaryCreationTime,
 914                                         dictionaryInfo.creationMillis)).append("\n");
 915                         for (final IndexInfo indexInfo : dictionaryInfo.indexInfos) {
 916                             builder.append("\n");
 917                             builder.append(getString(R.string.indexName, indexInfo.shortName))
 918                                     .append("\n");
 919                             builder.append(
 920                                     getString(R.string.mainTokenCount, indexInfo.mainTokenCount))
 921                                     .append("\n");
 922                         }
 923                         builder.append("\n");
 924                         builder.append(getString(R.string.sources)).append("\n");
 925                         for (final EntrySource source : dictionary.sources) {
 926                             builder.append(
 927                                     getString(R.string.sourceInfo, source.getName(),
 928                                             source.getNumEntries())).append("\n");
 929                         }
 930                     }
 931                     textView.setText(builder.toString());
 932
 933                     dialog.show();
 934                     final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
 935                     layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
 936                     layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
 937                     dialog.getWindow().setAttributes(layoutParams);
 938                     return false;
 939                 }
 940             });
 941         }
 942
 943         return true;
 944     }
 945
 946     // --------------------------------------------------------------------------
 947     // Context Menu + clicks
 948     // --------------------------------------------------------------------------
 949
 950     @Override
 951     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
 952         AdapterContextMenuInfo adapterContextMenuInfo = (AdapterContextMenuInfo) menuInfo;
 953         final RowBase row = (RowBase) getListAdapter().getItem(adapterContextMenuInfo.position);
 954
 955         final android.view.MenuItem addToWordlist = menu.add(getString(R.string.addToWordList,
 956                 wordList.getName()));
 957         addToWordlist
 958                 .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 959                     public boolean onMenuItemClick(android.view.MenuItem item) {
 960                         onAppendToWordList(row);
 961                         return false;
 962                     }
 963                 });
 964
 965         final android.view.MenuItem share = menu.add("Share");
 966         share.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 967             public boolean onMenuItemClick(android.view.MenuItem item) {
 968                 Intent shareIntent = new Intent(android.content.Intent.ACTION_SEND);
 969                 shareIntent.setType("text/plain");
 970                 shareIntent.putExtra(android.content.Intent.EXTRA_SUBJECT, row.getTokenRow(true)
 971                         .getToken());
 972                 shareIntent.putExtra(android.content.Intent.EXTRA_TEXT,
 973                         row.getRawText(saveOnlyFirstSubentry));
 974                 startActivity(shareIntent);
 975                 return false;
 976             }
 977         });
 978
 979         final android.view.MenuItem copy = menu.add(android.R.string.copy);
 980         copy.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 981             public boolean onMenuItemClick(android.view.MenuItem item) {
 982                 onCopy(row);
 983                 return false;
 984             }
 985         });
 986
 987         if (selectedSpannableText != null) {
 988             final String selectedText = selectedSpannableText;
 989             final android.view.MenuItem searchForSelection = menu.add(getString(
 990                     R.string.searchForSelection,
 991                     selectedSpannableText));
 992             searchForSelection
 993                     .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 994                         public boolean onMenuItemClick(android.view.MenuItem item) {
 995                             jumpToTextFromHyperLink(selectedText, selectedSpannableIndex);
 996                             return false;
 997                         }
 998                     });
 999             // Rats, this won't be shown:
1000             //searchForSelection.setIcon(R.drawable.abs__ic_search);
1001         }
1002
1003         if ((row instanceof TokenRow || selectedSpannableText != null) && ttsReady) {
1004             final android.view.MenuItem speak = menu.add(R.string.speak);
1005             final String textToSpeak = row instanceof TokenRow ? ((TokenRow) row).getToken() : selectedSpannableText;
1006             updateTTSLanguage(row instanceof TokenRow ? indexIndex : selectedSpannableIndex);
1007             speak.setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
1008                 @Override
1009                 public boolean onMenuItemClick(android.view.MenuItem item) {
1010                     textToSpeech.speak(textToSpeak, TextToSpeech.QUEUE_FLUSH,
1011                             new HashMap<String, String>());
1012                     return false;
1013                 }
1014             });
1015         }
1016     }
1017
1018     private void jumpToTextFromHyperLink(
1019             final String selectedText, final int defaultIndexToUse) {
1020         int indexToUse = -1;
1021         int numFound = 0;
1022         for (int i = 0; i < dictionary.indices.size(); ++i) {
1023             final Index index = dictionary.indices.get(i);
1024             if (indexPrepFinished) {
1025                 System.out.println("Doing index lookup: on " + selectedText);
1026                 final IndexEntry indexEntry = index.findExact(selectedText);
1027                 if (indexEntry != null) {
1028                     final TokenRow tokenRow = index.rows.get(indexEntry.startRow)
1029                             .getTokenRow(false);
1030                     if (tokenRow != null && tokenRow.hasMainEntry) {
1031                         indexToUse = i;
1032                         ++numFound;
1033                     }
1034                 }
1035             } else {
1036                 Log.w(LOG, "Skipping findExact on index " + index.shortName);
1037             }
1038         }
1039         if (numFound != 1 || indexToUse == -1) {
1040             indexToUse = defaultIndexToUse;
1041         }
1042         // Without this extra delay, the call to jumpToRow that this
1043         // invokes doesn't always actually have any effect.
1044         final int actualIndexToUse = indexToUse;
1045         getListView().postDelayed(new Runnable() {
1046             @Override
1047             public void run() {
1048                 setIndexAndSearchText(actualIndexToUse, selectedText, true);
1049             }
1050         }, 100);
1051     }
1052
1053     /**
1054      * Called when user clicks outside of search text, so that they can start
1055      * typing again immediately.
1056      */
1057     void defocusSearchText() {
1058         // Log.d(LOG, "defocusSearchText");
1059         // Request focus so that if we start typing again, it clears the text
1060         // input.
1061         getListView().requestFocus();
1062
1063         // Visual indication that a new keystroke will clear the search text.
1064         // Doesn't seem to work unless searchText has focus.
1065         // searchView.selectAll();
1066     }
1067
1068     protected void onListItemClick(ListView l, View v, int row, long id) {
1069         defocusSearchText();
1070         if (clickOpensContextMenu && dictRaf != null) {
1071             openContextMenu(v);
1072         }
1073     }
1074
1075     @SuppressLint("SimpleDateFormat")
1076     void onAppendToWordList(final RowBase row) {
1077         defocusSearchText();
1078
1079         final StringBuilder rawText = new StringBuilder();
1080         rawText.append(new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(new Date())).append("\t");
1081         rawText.append(index.longName).append("\t");
1082         rawText.append(row.getTokenRow(true).getToken()).append("\t");
1083         rawText.append(row.getRawText(saveOnlyFirstSubentry));
1084         Log.d(LOG, "Writing : " + rawText);
1085
1086         try {
1087             wordList.getParentFile().mkdirs();
1088             final PrintWriter out = new PrintWriter(new FileWriter(wordList, true));
1089             out.println(rawText.toString());
1090             out.close();
1091         } catch (Exception e) {
1092             Log.e(LOG, "Unable to append to " + wordList.getAbsolutePath(), e);
1093             Toast.makeText(this,
1094                     getString(R.string.failedAddingToWordList, wordList.getAbsolutePath()),
1095                     Toast.LENGTH_LONG).show();
1096         }
1097         return;
1098     }
1099
1100     @SuppressWarnings("deprecation")
1101     void onCopy(final RowBase row) {
1102         defocusSearchText();
1103
1104         Log.d(LOG, "Copy, row=" + row);
1105         final StringBuilder result = new StringBuilder();
1106         result.append(row.getRawText(false));
1107         final ClipboardManager clipboardManager = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
1108         clipboardManager.setText(result.toString());
1109         Log.d(LOG, "Copied: " + result);
1110     }
1111
1112     @Override
1113     public boolean onKeyDown(final int keyCode, final KeyEvent event) {
1114         if (event.getUnicodeChar() != 0) {
1115             if (!searchView.hasFocus()) {
1116                 setSearchText("" + (char) event.getUnicodeChar(), true);
1117                 searchView.requestFocus();
1118             }
1119             return true;
1120         }
1121         if (keyCode == KeyEvent.KEYCODE_BACK) {
1122             // Log.d(LOG, "Clearing dictionary prefs.");
1123             // Pretend that we just autolaunched so that we won't do it again.
1124             // DictionaryManagerActivity.lastAutoLaunchMillis =
1125             // System.currentTimeMillis();
1126         }
1127         if (keyCode == KeyEvent.KEYCODE_ENTER) {
1128             Log.d(LOG, "Trying to hide soft keyboard.");
1129             final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
1130             View focus = getCurrentFocus();
1131             if (focus != null) {
1132                 inputManager.hideSoftInputFromWindow(focus.getWindowToken(),
1133                         InputMethodManager.HIDE_NOT_ALWAYS);
1134             }
1135             return true;
1136         }
1137         return super.onKeyDown(keyCode, event);
1138     }
1139
1140     private void setIndexAndSearchText(int newIndex, String newSearchText, boolean hideKeyboard) {
1141         Log.d(LOG, "Changing index to: " + newIndex);
1142         if (newIndex == -1) {
1143             Log.e(LOG, "Invalid index.");
1144             newIndex = 0;
1145         }
1146         if (newIndex != indexIndex) {
1147             indexIndex = newIndex;
1148             index = dictionary.indices.get(indexIndex);
1149             indexAdapter = new IndexAdapter(index);
1150             setListAdapter(indexAdapter);
1151             Log.d(LOG, "changingIndex, newLang=" + index.longName);
1152             setDictionaryPrefs(this, dictFile, index.shortName, searchView.getQuery().toString());
1153             updateLangButton();
1154         }
1155         setSearchText(newSearchText, true, hideKeyboard);
1156     }
1157
1158     private void setSearchText(final String text, final boolean triggerSearch, boolean hideKeyboard) {
1159         Log.d(LOG, "setSearchText, text=" + text + ", triggerSearch=" + triggerSearch);
1160         // Disable the listener, because sometimes it doesn't work.
1161         searchView.setOnQueryTextListener(null);
1162         searchView.setQuery(text, false);
1163         moveCursorToRight();
1164         searchView.setOnQueryTextListener(onQueryTextListener);
1165
1166         if (triggerSearch) {
1167             onSearchTextChange(text);
1168         }
1169
1170         // We don't want to show virtual keyboard when we're changing searchView text programatically:
1171         if (hideKeyboard) {
1172             hideKeyboard();
1173         }
1174     }
1175
1176     private void setSearchText(final String text, final boolean triggerSearch) {
1177         setSearchText(text, triggerSearch, true);
1178     }
1179
1180     // private long cursorDelayMillis = 100;
1181     private void moveCursorToRight() {
1182         // if (searchText.getLayout() != null) {
1183         // cursorDelayMillis = 100;
1184         // // Surprising, but this can crash when you rotate...
1185         // Selection.moveToRightEdge(searchView.getQuery(),
1186         // searchText.getLayout());
1187         // } else {
1188         // uiHandler.postDelayed(new Runnable() {
1189         // @Override
1190         // public void run() {
1191         // moveCursorToRight();
1192         // }
1193         // }, cursorDelayMillis);
1194         // cursorDelayMillis = Math.min(10 * 1000, 2 * cursorDelayMillis);
1195         // }
1196     }
1197
1198     // --------------------------------------------------------------------------
1199     // SearchOperation
1200     // --------------------------------------------------------------------------
1201
1202     private void searchFinished(final SearchOperation searchOperation) {
1203         if (searchOperation.interrupted.get()) {
1204             Log.d(LOG, "Search operation was interrupted: " + searchOperation);
1205             return;
1206         }
1207         if (searchOperation != this.currentSearchOperation) {
1208             Log.d(LOG, "Stale searchOperation finished: " + searchOperation);
1209             return;
1210         }
1211
1212         final Index.IndexEntry searchResult = searchOperation.searchResult;
1213         Log.d(LOG, "searchFinished: " + searchOperation + ", searchResult=" + searchResult);
1214
1215         currentSearchOperation = null;
1216         uiHandler.postDelayed(new Runnable() {
1217             @Override
1218             public void run() {
1219                 if (currentSearchOperation == null) {
1220                     if (searchResult != null) {
1221                         if (isFiltered()) {
1222                             clearFiltered();
1223                         }
1224                         jumpToRow(searchResult.startRow);
1225                     } else if (searchOperation.multiWordSearchResult != null) {
1226                         // Multi-row search....
1227                         setFiltered(searchOperation);
1228                     } else {
1229                         throw new IllegalStateException("This should never happen.");
1230                     }
1231                 } else {
1232                     Log.d(LOG, "More coming, waiting for currentSearchOperation.");
1233                 }
1234             }
1235         }, 20);
1236     }
1237
1238     private final void jumpToRow(final int row) {
1239         Log.d(LOG, "jumpToRow: " + row + ", refocusSearchText=" + false);
1240         // getListView().requestFocusFromTouch();
1241         getListView().setSelectionFromTop(row, 0);
1242         getListView().setSelected(true);
1243     }
1244
1245     static final Pattern WHITESPACE = Pattern.compile("\\s+");
1246
1247     final class SearchOperation implements Runnable {
1248
1249         final AtomicBoolean interrupted = new AtomicBoolean(false);
1250
1251         final String searchText;
1252
1253         List<String> searchTokens; // filled in for multiWord.
1254
1255         final Index index;
1256
1257         long searchStartMillis;
1258
1259         Index.IndexEntry searchResult;
1260
1261         List<RowBase> multiWordSearchResult;
1262
1263         boolean done = false;
1264
1265         SearchOperation(final String searchText, final Index index) {
1266             this.searchText = StringUtil.normalizeWhitespace(searchText);
1267             this.index = index;
1268         }
1269
1270         public String toString() {
1271             return String.format("SearchOperation(%s,%s)", searchText, interrupted.toString());
1272         }
1273
1274         @Override
1275         public void run() {
1276             try {
1277                 searchStartMillis = System.currentTimeMillis();
1278                 final String[] searchTokenArray = WHITESPACE.split(searchText);
1279                 if (searchTokenArray.length == 1) {
1280                     searchResult = index.findInsertionPoint(searchText, interrupted);
1281                 } else {
1282                     searchTokens = Arrays.asList(searchTokenArray);
1283                     multiWordSearchResult = index.multiWordSearch(searchText, searchTokens,
1284                             interrupted);
1285                 }
1286                 Log.d(LOG,
1287                         "searchText=" + searchText + ", searchDuration="
1288                                 + (System.currentTimeMillis() - searchStartMillis)
1289                                 + ", interrupted=" + interrupted.get());
1290                 if (!interrupted.get()) {
1291                     uiHandler.post(new Runnable() {
1292                         @Override
1293                         public void run() {
1294                             searchFinished(SearchOperation.this);
1295                         }
1296                     });
1297                 } else {
1298                     Log.d(LOG, "interrupted, skipping searchFinished.");
1299                 }
1300             } catch (Exception e) {
1301                 Log.e(LOG, "Failure during search (can happen during Activity close.");
1302             } finally {
1303                 synchronized (this) {
1304                     done = true;
1305                     this.notifyAll();
1306                 }
1307             }
1308         }
1309     }
1310
1311     // --------------------------------------------------------------------------
1312     // IndexAdapter
1313     // --------------------------------------------------------------------------
1314
1315     static ViewGroup.LayoutParams WEIGHT_1 = new LinearLayout.LayoutParams(
1316             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 1.0f);
1317
1318     static ViewGroup.LayoutParams WEIGHT_0 = new LinearLayout.LayoutParams(
1319             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 0.0f);
1320
1321     final class IndexAdapter extends BaseAdapter {
1322
1323         private static final float PADDING_DEFAULT_DP = 8;
1324
1325         private static final float PADDING_LARGE_DP = 16;
1326
1327         final Index index;
1328
1329         final List<RowBase> rows;
1330
1331         final Set<String> toHighlight;
1332
1333         private int mPaddingDefault;
1334
1335         private int mPaddingLarge;
1336
1337         IndexAdapter(final Index index) {
1338             this.index = index;
1339             rows = index.rows;
1340             this.toHighlight = null;
1341             getMetrics();
1342         }
1343
1344         IndexAdapter(final Index index, final List<RowBase> rows, final List<String> toHighlight) {
1345             this.index = index;
1346             this.rows = rows;
1347             this.toHighlight = new LinkedHashSet<String>(toHighlight);
1348             getMetrics();
1349         }
1350
1351         private void getMetrics() {
1352             // Get the screen's density scale
1353             final float scale = getResources().getDisplayMetrics().density;
1354             // Convert the dps to pixels, based on density scale
1355             mPaddingDefault = (int) (PADDING_DEFAULT_DP * scale + 0.5f);
1356             mPaddingLarge = (int) (PADDING_LARGE_DP * scale + 0.5f);
1357         }
1358
1359         @Override
1360         public int getCount() {
1361             return rows.size();
1362         }
1363
1364         @Override
1365         public RowBase getItem(int position) {
1366             return rows.get(position);
1367         }
1368
1369         @Override
1370         public long getItemId(int position) {
1371             return getItem(position).index();
1372         }
1373
1374         @Override
1375         public TableLayout getView(int position, View convertView, ViewGroup parent) {
1376             final TableLayout result;
1377             if (convertView instanceof TableLayout) {
1378                 result = (TableLayout) convertView;
1379                 result.removeAllViews();
1380             } else {
1381                 result = new TableLayout(parent.getContext());
1382             }
1383             final RowBase row = getItem(position);
1384             if (row instanceof PairEntry.Row) {
1385                 return getView(position, (PairEntry.Row) row, parent, result);
1386             } else if (row instanceof TokenRow) {
1387                 return getView((TokenRow) row, parent, result);
1388             } else if (row instanceof HtmlEntry.Row) {
1389                 return getView((HtmlEntry.Row) row, parent, result);
1390             } else {
1391                 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
1392             }
1393         }
1394
1395         private TableLayout getView(final int position, PairEntry.Row row, ViewGroup parent,
1396                 final TableLayout result) {
1397             final PairEntry entry = row.getEntry();
1398             final int rowCount = entry.pairs.size();
1399
1400             final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams();
1401             layoutParams.weight = 0.5f;
1402             layoutParams.leftMargin = mPaddingLarge;
1403
1404             for (int r = 0; r < rowCount; ++r) {
1405                 final TableRow tableRow = new TableRow(result.getContext());
1406
1407                 final TextView col1 = new TextView(tableRow.getContext());
1408                 final TextView col2 = new TextView(tableRow.getContext());
1409
1410                 // Set the columns in the table.
1411                 if (r > 0) {
1412                     final TextView bullet = new TextView(tableRow.getContext());
1413                     bullet.setText(" • ");
1414                     tableRow.addView(bullet);
1415                 }
1416                 tableRow.addView(col1, layoutParams);
1417                 final TextView margin = new TextView(tableRow.getContext());
1418                 margin.setText(" ");
1419                 tableRow.addView(margin);
1420                 if (r > 0) {
1421                     final TextView bullet = new TextView(tableRow.getContext());
1422                     bullet.setText(" • ");
1423                     tableRow.addView(bullet);
1424                 }
1425                 tableRow.addView(col2, layoutParams);
1426                 col1.setWidth(1);
1427                 col2.setWidth(1);
1428
1429                 // Set what's in the columns.
1430
1431                 final Pair pair = entry.pairs.get(r);
1432                 final String col1Text = index.swapPairEntries ? pair.lang2 : pair.lang1;
1433                 final String col2Text = index.swapPairEntries ? pair.lang1 : pair.lang2;
1434
1435                 col1.setText(col1Text, TextView.BufferType.SPANNABLE);
1436                 col2.setText(col2Text, TextView.BufferType.SPANNABLE);
1437
1438                 // Bold the token instances in col1.
1439                 final Set<String> toBold = toHighlight != null ? this.toHighlight : Collections
1440                         .singleton(row.getTokenRow(true).getToken());
1441                 final Spannable col1Spannable = (Spannable) col1.getText();
1442                 for (final String token : toBold) {
1443                     int startPos = 0;
1444                     while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
1445                         col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos, startPos
1446                                 + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1447                         startPos += token.length();
1448                     }
1449                 }
1450
1451                 createTokenLinkSpans(col1, col1Spannable, col1Text);
1452                 createTokenLinkSpans(col2, (Spannable) col2.getText(), col2Text);
1453
1454                 col1.setTypeface(typeface);
1455                 col2.setTypeface(typeface);
1456                 col1.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1457                 col2.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1458                 // col2.setBackgroundResource(theme.otherLangBg);
1459
1460                 if (index.swapPairEntries) {
1461                     col2.setOnLongClickListener(textViewLongClickListenerIndex0);
1462                     col1.setOnLongClickListener(textViewLongClickListenerIndex1);
1463                 } else {
1464                     col1.setOnLongClickListener(textViewLongClickListenerIndex0);
1465                     col2.setOnLongClickListener(textViewLongClickListenerIndex1);
1466                 }
1467
1468                 result.addView(tableRow);
1469             }
1470
1471             // Because we have a Button inside a ListView row:
1472             // http://groups.google.com/group/android-developers/browse_thread/thread/3d96af1530a7d62a?pli=1
1473             result.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
1474             result.setClickable(true);
1475             result.setFocusable(true);
1476             result.setLongClickable(true);
1477 //            result.setBackgroundResource(android.R.drawable.menuitem_background);
1478
1479             result.setBackgroundResource(theme.normalRowBg);
1480
1481             result.setOnClickListener(new TextView.OnClickListener() {
1482                 @Override
1483                 public void onClick(View v) {
1484                     DictionaryActivity.this.onListItemClick(getListView(), v, position, position);
1485                 }
1486             });
1487
1488             return result;
1489         }
1490
1491         private TableLayout getPossibleLinkToHtmlEntryView(final boolean isTokenRow,
1492                 final String text, final boolean hasMainEntry, final List<HtmlEntry> htmlEntries,
1493                 final String htmlTextToHighlight, ViewGroup parent, final TableLayout result) {
1494             final Context context = parent.getContext();
1495
1496             final TableRow tableRow = new TableRow(result.getContext());
1497             tableRow.setBackgroundResource(hasMainEntry ? theme.tokenRowMainBg
1498                     : theme.tokenRowOtherBg);
1499             if (isTokenRow) {
1500                 tableRow.setPadding(mPaddingDefault, mPaddingDefault, mPaddingDefault, 0);
1501             } else {
1502                 tableRow.setPadding(mPaddingLarge, mPaddingDefault, mPaddingDefault, 0);
1503             }
1504             result.addView(tableRow);
1505
1506             // Make it so we can long-click on these token rows, too:
1507             final TextView textView = new TextView(context);
1508             textView.setText(text, BufferType.SPANNABLE);
1509             createTokenLinkSpans(textView, (Spannable) textView.getText(), text);
1510             textView.setOnLongClickListener(indexIndex > 0 ? textViewLongClickListenerIndex1 : textViewLongClickListenerIndex0);
1511             result.setLongClickable(true);
1512
1513             // Doesn't work:
1514             // textView.setTextColor(android.R.color.secondary_text_light);
1515             textView.setTypeface(typeface);
1516             TableRow.LayoutParams lp = new TableRow.LayoutParams(0);
1517             if (isTokenRow) {
1518                 textView.setTextAppearance(context, theme.tokenRowFg);
1519                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 4 * fontSizeSp / 3);
1520             } else {
1521                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1522             }
1523             lp.weight = 1.0f;
1524
1525             textView.setLayoutParams(lp);
1526             tableRow.addView(textView);
1527
1528             if (!htmlEntries.isEmpty()) {
1529                 final ClickableSpan clickableSpan = new ClickableSpan() {
1530                     @Override
1531                     public void onClick(View widget) {
1532                     }
1533                 };
1534                 ((Spannable) textView.getText()).setSpan(clickableSpan, 0, text.length(),
1535                         Spannable.SPAN_INCLUSIVE_INCLUSIVE);
1536                 result.setClickable(true);
1537                 textView.setClickable(true);
1538                 textView.setMovementMethod(LinkMovementMethod.getInstance());
1539                 textView.setOnClickListener(new OnClickListener() {
1540                     @Override
1541                     public void onClick(View v) {
1542                         String html = HtmlEntry.htmlBody(htmlEntries, index.shortName);
1543                         // Log.d(LOG, "html=" + html);
1544                         startActivityForResult(
1545                                 HtmlDisplayActivity.getHtmlIntent(getApplicationContext(), String.format(
1546                                         "<html><head></head><body>%s</body></html>", html),
1547                                         htmlTextToHighlight, false),
1548                                 0);
1549                     }
1550                 });
1551             }
1552             return result;
1553         }
1554
1555         private TableLayout getView(TokenRow row, ViewGroup parent, final TableLayout result) {
1556             final IndexEntry indexEntry = row.getIndexEntry();
1557             return getPossibleLinkToHtmlEntryView(true, indexEntry.token, row.hasMainEntry,
1558                     indexEntry.htmlEntries, null, parent, result);
1559         }
1560
1561         private TableLayout getView(HtmlEntry.Row row, ViewGroup parent, final TableLayout result) {
1562             final HtmlEntry htmlEntry = row.getEntry();
1563             final TokenRow tokenRow = row.getTokenRow(true);
1564             return getPossibleLinkToHtmlEntryView(false,
1565                     getString(R.string.seeAlso, htmlEntry.title, htmlEntry.entrySource.getName()),
1566                     false, Collections.singletonList(htmlEntry), tokenRow.getToken(), parent,
1567                     result);
1568         }
1569
1570     }
1571
1572     static final Pattern CHAR_DASH = Pattern.compile("['\\p{L}\\p{M}\\p{N}]+");
1573
1574     private void createTokenLinkSpans(final TextView textView, final Spannable spannable,
1575             final String text) {
1576         // Saw from the source code that LinkMovementMethod sets the selection!
1577         // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.3.1_r1/android/text/method/LinkMovementMethod.java#LinkMovementMethod
1578         textView.setMovementMethod(LinkMovementMethod.getInstance());
1579         final Matcher matcher = CHAR_DASH.matcher(text);
1580         while (matcher.find()) {
1581             spannable.setSpan(new NonLinkClickableSpan(textColorFg), matcher.start(),
1582                     matcher.end(),
1583                     Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1584         }
1585     }
1586
1587     String selectedSpannableText = null;
1588
1589     int selectedSpannableIndex = -1;
1590
1591     @Override
1592     public boolean onTouchEvent(MotionEvent event) {
1593         selectedSpannableText = null;
1594         selectedSpannableIndex = -1;
1595         return super.onTouchEvent(event);
1596     }
1597
1598     private class TextViewLongClickListener implements OnLongClickListener {
1599         final int index;
1600
1601         private TextViewLongClickListener(final int index) {
1602             this.index = index;
1603         }
1604
1605         @Override
1606         public boolean onLongClick(final View v) {
1607             final TextView textView = (TextView) v;
1608             final int start = textView.getSelectionStart();
1609             final int end = textView.getSelectionEnd();
1610             if (start >= 0 && end >= 0) {
1611                 selectedSpannableText = textView.getText().subSequence(start, end).toString();
1612                 selectedSpannableIndex = index;
1613             }
1614             return false;
1615         }
1616     }
1617
1618     final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1619             0);
1620
1621     final TextViewLongClickListener textViewLongClickListenerIndex1 = new TextViewLongClickListener(
1622             1);
1623
1624     // --------------------------------------------------------------------------
1625     // SearchText
1626     // --------------------------------------------------------------------------
1627
1628     void onSearchTextChange(final String text) {
1629         if ("thadolina".equals(text)) {
1630             final Dialog dialog = new Dialog(getListView().getContext());
1631             dialog.setContentView(R.layout.thadolina_dialog);
1632             dialog.setTitle("Ti amo, amore mio!");
1633             final ImageView imageView = (ImageView) dialog.findViewById(R.id.thadolina_image);
1634             imageView.setOnClickListener(new OnClickListener() {
1635                 @Override
1636                 public void onClick(View v) {
1637                     final Intent intent = new Intent(Intent.ACTION_VIEW);
1638                     intent.setData(Uri.parse("https://sites.google.com/site/cfoxroxvday/vday2012"));
1639                     startActivity(intent);
1640                 }
1641             });
1642             dialog.show();
1643         }
1644         if (dictRaf == null) {
1645             Log.d(LOG, "searchText changed during shutdown, doing nothing.");
1646             return;
1647         }
1648
1649         // if (!searchView.hasFocus()) {
1650         // Log.d(LOG, "searchText changed without focus, doing nothing.");
1651         // return;
1652         // }
1653         Log.d(LOG, "onSearchTextChange: " + text);
1654         if (currentSearchOperation != null) {
1655             Log.d(LOG, "Interrupting currentSearchOperation.");
1656             currentSearchOperation.interrupted.set(true);
1657         }
1658         currentSearchOperation = new SearchOperation(text, index);
1659         searchExecutor.execute(currentSearchOperation);
1660     }
1661
1662     // --------------------------------------------------------------------------
1663     // Filtered results.
1664     // --------------------------------------------------------------------------
1665
1666     boolean isFiltered() {
1667         return rowsToShow != null;
1668     }
1669
1670     void setFiltered(final SearchOperation searchOperation) {
1671         if (nextWordMenuItem != null) {
1672             nextWordMenuItem.setEnabled(false);
1673             previousWordMenuItem.setEnabled(false);
1674         }
1675         rowsToShow = searchOperation.multiWordSearchResult;
1676         setListAdapter(new IndexAdapter(index, rowsToShow, searchOperation.searchTokens));
1677     }
1678
1679     void clearFiltered() {
1680         if (nextWordMenuItem != null) {
1681             nextWordMenuItem.setEnabled(true);
1682             previousWordMenuItem.setEnabled(true);
1683         }
1684         setListAdapter(new IndexAdapter(index));
1685         rowsToShow = null;
1686     }
1687
1688 }