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