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