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