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

   1 // Copyright 2011 Google Inc. All Rights Reserved.
   2 //
   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.app.Dialog;
  18 import android.app.ListActivity;
  19 import android.content.Context;
  20 import android.content.Intent;
  21 import android.content.SharedPreferences;
  22 import android.graphics.Color;
  23 import android.graphics.Typeface;
  24 import android.net.Uri;
  25 import android.os.Bundle;
  26 import android.os.Handler;
  27 import android.preference.PreferenceManager;
  28 import android.speech.tts.TextToSpeech;
  29 import android.speech.tts.TextToSpeech.OnInitListener;
  30 import android.text.ClipboardManager;
  31 import android.text.Editable;
  32 import android.text.Selection;
  33 import android.text.Spannable;
  34 import android.text.TextWatcher;
  35 import android.text.method.LinkMovementMethod;
  36 import android.text.style.ClickableSpan;
  37 import android.text.style.StyleSpan;
  38 import android.util.Log;
  39 import android.util.TypedValue;
  40 import android.view.ContextMenu;
  41 import android.view.ContextMenu.ContextMenuInfo;
  42 import android.view.KeyEvent;
  43 import android.view.Menu;
  44 import android.view.MenuItem;
  45 import android.view.MenuItem.OnMenuItemClickListener;
  46 import android.view.MotionEvent;
  47 import android.view.View;
  48 import android.view.View.OnClickListener;
  49 import android.view.View.OnFocusChangeListener;
  50 import android.view.View.OnLongClickListener;
  51 import android.view.ViewGroup;
  52 import android.view.WindowManager;
  53 import android.view.inputmethod.InputMethodManager;
  54 import android.widget.AdapterView.AdapterContextMenuInfo;
  55 import android.widget.BaseAdapter;
  56 import android.widget.Button;
  57 import android.widget.EditText;
  58 import android.widget.ImageButton;
  59 import android.widget.ImageView;
  60 import android.widget.LinearLayout;
  61 import android.widget.ListAdapter;
  62 import android.widget.ListView;
  63 import android.widget.TableLayout;
  64 import android.widget.TableRow;
  65 import android.widget.TextView;
  66 import android.widget.TextView.BufferType;
  67 import android.widget.Toast;
  68
  69 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  70 import com.hughes.android.dictionary.engine.Dictionary;
  71 import com.hughes.android.dictionary.engine.EntrySource;
  72 import com.hughes.android.dictionary.engine.HtmlEntry;
  73 import com.hughes.android.dictionary.engine.Index;
  74 import com.hughes.android.dictionary.engine.Index.IndexEntry;
  75 import com.hughes.android.dictionary.engine.PairEntry;
  76 import com.hughes.android.dictionary.engine.PairEntry.Pair;
  77 import com.hughes.android.dictionary.engine.RowBase;
  78 import com.hughes.android.dictionary.engine.TokenRow;
  79 import com.hughes.android.dictionary.engine.TransliteratorManager;
  80 import com.hughes.android.util.IntentLauncher;
  81 import com.hughes.android.util.NonLinkClickableSpan;
  82 import com.hughes.util.StringUtil;
  83
  84 import java.io.File;
  85 import java.io.FileWriter;
  86 import java.io.IOException;
  87 import java.io.PrintWriter;
  88 import java.io.RandomAccessFile;
  89 import java.text.SimpleDateFormat;
  90 import java.util.Arrays;
  91 import java.util.Collections;
  92 import java.util.Date;
  93 import java.util.HashMap;
  94 import java.util.LinkedHashSet;
  95 import java.util.List;
  96 import java.util.Locale;
  97 import java.util.Random;
  98 import java.util.Set;
  99 import java.util.concurrent.Executor;
 100 import java.util.concurrent.Executors;
 101 import java.util.concurrent.ThreadFactory;
 102 import java.util.concurrent.atomic.AtomicBoolean;
 103 import java.util.regex.Matcher;
 104 import java.util.regex.Pattern;
 105
 106 public class DictionaryActivity extends ListActivity {
 107
 108     static final String LOG = "QuickDic";
 109
 110     DictionaryApplication application;
 111
 112     File dictFile = null;
 113
 114     RandomAccessFile dictRaf = null;
 115
 116     Dictionary dictionary = null;
 117
 118     int indexIndex = 0;
 119
 120     Index index = null;
 121
 122     List<RowBase> rowsToShow = null; // if not null, just show these rows.
 123
 124     // package for test.
 125     final Handler uiHandler = new Handler();
 126
 127     TextToSpeech textToSpeech;
 128     volatile boolean ttsReady;
 129
 130     int textColorFg = Color.BLACK;
 131
 132     private final Executor searchExecutor = Executors.newSingleThreadExecutor(new ThreadFactory() {
 133         @Override
 134         public Thread newThread(Runnable r) {
 135             return new Thread(r, "searchExecutor");
 136         }
 137     });
 138
 139     private SearchOperation currentSearchOperation = null;
 140
 141     C.Theme theme = C.Theme.LIGHT;
 142
 143     Typeface typeface;
 144
 145     int fontSizeSp;
 146
 147     EditText searchText;
 148
 149     Button langButton;
 150
 151     // Never null.
 152     private File wordList = null;
 153
 154     private boolean saveOnlyFirstSubentry = false;
 155
 156     private boolean clickOpensContextMenu = false;
 157
 158     // Visible for testing.
 159     ListAdapter indexAdapter = null;
 160
 161     final SearchTextWatcher searchTextWatcher = new SearchTextWatcher();
 162
 163     /**
 164      * For some languages, loading the transliterators used in this search takes
 165      * a long time, so we fire it up on a different thread, and don't invoke it
 166      * from the main thread until it's already finished once.
 167      */
 168     private volatile boolean indexPrepFinished = false;
 169
 170     public DictionaryActivity() {
 171     }
 172
 173     public static Intent getLaunchIntent(final File dictFile, final int indexIndex,
 174             final String searchToken) {
 175         final Intent intent = new Intent();
 176         intent.setClassName(DictionaryActivity.class.getPackage().getName(),
 177                 DictionaryActivity.class.getName());
 178         intent.putExtra(C.DICT_FILE, dictFile.getPath());
 179         intent.putExtra(C.INDEX_INDEX, indexIndex);
 180         intent.putExtra(C.SEARCH_TOKEN, searchToken);
 181         return intent;
 182     }
 183
 184     @Override
 185     protected void onSaveInstanceState(final Bundle outState) {
 186         super.onSaveInstanceState(outState);
 187         Log.d(LOG, "onSaveInstanceState: " + searchText.getText().toString());
 188         outState.putInt(C.INDEX_INDEX, indexIndex);
 189         outState.putString(C.SEARCH_TOKEN, searchText.getText().toString());
 190     }
 191
 192     @Override
 193     protected void onRestoreInstanceState(final Bundle outState) {
 194         super.onRestoreInstanceState(outState);
 195         Log.d(LOG, "onRestoreInstanceState: " + outState.getString(C.SEARCH_TOKEN));
 196         onCreate(outState);
 197     }
 198
 199     @Override
 200     public void onCreate(Bundle savedInstanceState) {
 201         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 202         prefs.edit().remove(C.INDEX_INDEX).commit(); // Don't auto-launch if
 203                                                      // this fails.
 204
 205         setTheme(((DictionaryApplication) getApplication()).getSelectedTheme().themeId);
 206
 207         Log.d(LOG, "onCreate:" + this);
 208         super.onCreate(savedInstanceState);
 209
 210         application = (DictionaryApplication) getApplication();
 211         theme = application.getSelectedTheme();
 212         textColorFg = getResources().getColor(theme.tokenRowFgColor);
 213
 214         final Intent intent = getIntent();
 215         dictFile = new File(intent.getStringExtra(C.DICT_FILE));
 216
 217         ttsReady = false;
 218         textToSpeech = new TextToSpeech(getApplicationContext(), new OnInitListener() {
 219             @Override
 220             public void onInit(int status) {
 221                 ttsReady = true;
 222                 updateTTSLanuage();
 223             }
 224         });
 225
 226         try {
 227             final String name = application.getDictionaryName(dictFile.getName());
 228             this.setTitle("QuickDic: " + name);
 229             dictRaf = new RandomAccessFile(dictFile, "r");
 230             dictionary = new Dictionary(dictRaf);
 231         } catch (Exception e) {
 232             Log.e(LOG, "Unable to load dictionary.", e);
 233             if (dictRaf != null) {
 234                 try {
 235                     dictRaf.close();
 236                 } catch (IOException e1) {
 237                     Log.e(LOG, "Unable to close dictRaf.", e1);
 238                 }
 239                 dictRaf = null;
 240             }
 241             Toast.makeText(this, getString(R.string.invalidDictionary, "", e.getMessage()),
 242                     Toast.LENGTH_LONG).show();
 243             startActivity(DictionaryManagerActivity.getLaunchIntent());
 244             finish();
 245             return;
 246         }
 247         indexIndex = intent.getIntExtra(C.INDEX_INDEX, 0);
 248         if (savedInstanceState != null) {
 249             indexIndex = savedInstanceState.getInt(C.INDEX_INDEX, indexIndex);
 250         }
 251         indexIndex %= dictionary.indices.size();
 252         Log.d(LOG, "Loading index " + indexIndex);
 253         index = dictionary.indices.get(indexIndex);
 254         setListAdapter(new IndexAdapter(index));
 255
 256         // Pre-load the collators.
 257         new Thread(new Runnable() {
 258             public void run() {
 259                 final long startMillis = System.currentTimeMillis();
 260                 try {
 261                     TransliteratorManager.init(new TransliteratorManager.Callback() {
 262                         @Override
 263                         public void onTransliteratorReady() {
 264                             uiHandler.post(new Runnable() {
 265                                 @Override
 266                                 public void run() {
 267                                     onSearchTextChange(searchText.getText().toString());
 268                                 }
 269                             });
 270                         }
 271                     });
 272
 273                     for (final Index index : dictionary.indices) {
 274                         final String searchToken = index.sortedIndexEntries.get(0).token;
 275                         final IndexEntry entry = index.findExact(searchToken);
 276                         if (!searchToken.equals(entry.token)) {
 277                             Log.e(LOG, "Couldn't find token: " + searchToken + ", " + entry.token);
 278                         }
 279                     }
 280                     indexPrepFinished = true;
 281                 } catch (Exception e) {
 282                     Log.w(LOG,
 283                             "Exception while prepping.  This can happen if dictionary is closed while search is happening.");
 284                 }
 285                 Log.d(LOG, "Prepping indices took:" + (System.currentTimeMillis() - startMillis));
 286             }
 287         }).start();
 288
 289         String fontName = prefs.getString(getString(R.string.fontKey), "FreeSerif.ttf.jpg");
 290         if ("SYSTEM".equals(fontName)) {
 291             typeface = Typeface.DEFAULT;
 292         } else {
 293             try {
 294                 typeface = Typeface.createFromAsset(getAssets(), fontName);
 295             } catch (Exception e) {
 296                 Log.w(LOG, "Exception trying to use typeface, using default.", e);
 297                 Toast.makeText(this, getString(R.string.fontFailure, e.getLocalizedMessage()),
 298                         Toast.LENGTH_LONG).show();
 299             }
 300         }
 301         // if (!"SYSTEM".equals(fontName)) {
 302         // throw new RuntimeException("Test force using system font: " +
 303         // fontName);
 304         // }
 305         if (typeface == null) {
 306             Log.w(LOG, "Unable to create typeface, using default.");
 307             typeface = Typeface.DEFAULT;
 308         }
 309         final String fontSize = prefs.getString(getString(R.string.fontSizeKey), "14");
 310         try {
 311             fontSizeSp = Integer.parseInt(fontSize.trim());
 312         } catch (NumberFormatException e) {
 313             fontSizeSp = 14;
 314         }
 315
 316         setContentView(R.layout.dictionary_activity);
 317         searchText = (EditText) findViewById(R.id.SearchText);
 318         searchText.requestFocus();
 319         searchText.addTextChangedListener(searchTextWatcher);
 320         searchText.setOnFocusChangeListener(new OnFocusChangeListener() {
 321             @Override
 322             public void onFocusChange(View v, boolean hasFocus) {
 323                 Log.d(LOG, "searchText onFocusChange hasFocus=" + hasFocus);
 324             }
 325         });
 326
 327         // Set the search text from the intent, then the saved state.
 328         String text = getIntent().getStringExtra(C.SEARCH_TOKEN);
 329         if (savedInstanceState != null) {
 330             text = savedInstanceState.getString(C.SEARCH_TOKEN);
 331         }
 332         if (text == null) {
 333             text = "";
 334         }
 335         setSearchText(text, true);
 336         Log.d(LOG, "Trying to restore searchText=" + text);
 337
 338         final View clearSearchTextButton = findViewById(R.id.ClearSearchTextButton);
 339         clearSearchTextButton.setOnClickListener(new OnClickListener() {
 340             public void onClick(View v) {
 341                 onClearSearchTextButton();
 342             }
 343         });
 344         clearSearchTextButton.setVisibility(PreferenceManager.getDefaultSharedPreferences(this)
 345                 .getBoolean(getString(R.string.showClearSearchTextButtonKey), true) ? View.VISIBLE
 346                 : View.GONE);
 347
 348         langButton = (Button) findViewById(R.id.LangButton);
 349         langButton.setOnClickListener(new OnClickListener() {
 350             public void onClick(View v) {
 351                 onLanguageButton();
 352             }
 353         });
 354         langButton.setOnLongClickListener(new OnLongClickListener() {
 355             @Override
 356             public boolean onLongClick(View v) {
 357                 onLanguageButtonLongClick(v.getContext());
 358                 return true;
 359             }
 360         });
 361         updateLangButton();
 362
 363         final View upButton = findViewById(R.id.UpButton);
 364         upButton.setOnClickListener(new OnClickListener() {
 365             public void onClick(View v) {
 366                 onUpDownButton(true);
 367             }
 368         });
 369         final View downButton = findViewById(R.id.DownButton);
 370         downButton.setOnClickListener(new OnClickListener() {
 371             public void onClick(View v) {
 372                 onUpDownButton(false);
 373             }
 374         });
 375
 376 //        getListView().setOnItemSelectedListener(new ListView.OnItemSelectedListener() {
 377 //            @Override
 378 //            public void onItemSelected(AdapterView<?> adapterView, View arg1, final int position,
 379 //                    long id) {
 380 //                if (!searchText.isFocused()) {
 381 //                    if (!isFiltered()) {
 382 //                        final RowBase row = (RowBase) getListAdapter().getItem(position);
 383 //                        Log.d(LOG, "onItemSelected: " + row.index());
 384 //                        final TokenRow tokenRow = row.getTokenRow(true);
 385 //                        searchText.setText(tokenRow.getToken());
 386 //                    }
 387 //                }
 388 //            }
 389 //
 390 //            @Override
 391 //            public void onNothingSelected(AdapterView<?> arg0) {
 392 //            }
 393 //        });
 394 //
 395         // ContextMenu.
 396         registerForContextMenu(getListView());
 397
 398         // Prefs.
 399         wordList = new File(prefs.getString(getString(R.string.wordListFileKey),
 400                 getString(R.string.wordListFileDefault)));
 401         saveOnlyFirstSubentry = prefs.getBoolean(getString(R.string.saveOnlyFirstSubentryKey),
 402                 false);
 403         clickOpensContextMenu = prefs.getBoolean(getString(R.string.clickOpensContextMenuKey),
 404                 false);
 405         // if (prefs.getBoolean(getString(R.string.vibrateOnFailedSearchKey),
 406         // true)) {
 407         // vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
 408         // }
 409         Log.d(LOG, "wordList=" + wordList + ", saveOnlyFirstSubentry=" + saveOnlyFirstSubentry);
 410
 411         setDictionaryPrefs(this, dictFile, indexIndex, searchText.getText().toString());
 412     }
 413
 414     @Override
 415     protected void onResume() {
 416         Log.d(LOG, "onResume");
 417         super.onResume();
 418         if (PreferenceActivity.prefsMightHaveChanged) {
 419             PreferenceActivity.prefsMightHaveChanged = false;
 420             finish();
 421             startActivity(getIntent());
 422         }
 423         showKeyboard();
 424     }
 425
 426     @Override
 427     protected void onPause() {
 428         super.onPause();
 429     }
 430
 431     @Override
 432     protected void onActivityResult(int requestCode, int resultCode, Intent result) {
 433         super.onActivityResult(requestCode, resultCode, result);
 434         if (result != null && result.hasExtra(C.SEARCH_TOKEN)) {
 435             Log.d(LOG, "onActivityResult: " + result.getStringExtra(C.SEARCH_TOKEN));
 436             jumpToTextFromHyperLink(result.getStringExtra(C.SEARCH_TOKEN), indexIndex);
 437         }
 438     }
 439
 440     private static void setDictionaryPrefs(final Context context, final File dictFile,
 441             final int indexIndex, final String searchToken) {
 442         final SharedPreferences.Editor prefs = PreferenceManager.getDefaultSharedPreferences(
 443                 context).edit();
 444         prefs.putString(C.DICT_FILE, dictFile.getPath());
 445         prefs.putInt(C.INDEX_INDEX, indexIndex);
 446         prefs.putString(C.SEARCH_TOKEN, ""); // Don't need to save search token.
 447         prefs.commit();
 448     }
 449
 450     @Override
 451     protected void onDestroy() {
 452         super.onDestroy();
 453         if (dictRaf == null) {
 454             return;
 455         }
 456
 457         final SearchOperation searchOperation = currentSearchOperation;
 458         currentSearchOperation = null;
 459
 460         // Before we close the RAF, we have to wind the current search down.
 461         if (searchOperation != null) {
 462             Log.d(LOG, "Interrupting search to shut down.");
 463             currentSearchOperation = null;
 464             searchOperation.interrupted.set(true);
 465         }
 466
 467         try {
 468             Log.d(LOG, "Closing RAF.");
 469             dictRaf.close();
 470         } catch (IOException e) {
 471             Log.e(LOG, "Failed to close dictionary", e);
 472         }
 473         dictRaf = null;
 474     }
 475
 476     // --------------------------------------------------------------------------
 477     // Buttons
 478     // --------------------------------------------------------------------------
 479
 480     private void onClearSearchTextButton() {
 481         setSearchText("", true);
 482         showKeyboard();
 483     }
 484
 485     private void showKeyboard() {
 486         searchText.postDelayed(new Runnable() {
 487             @Override
 488             public void run() {
 489                 Log.d(LOG, "Trying to show soft keyboard.");
 490                 final InputMethodManager manager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 491                 manager.showSoftInput(searchText, InputMethodManager.SHOW_IMPLICIT);
 492             }}, 100);
 493     }
 494
 495     void updateLangButton() {
 496         // final LanguageResources languageResources =
 497         // Language.isoCodeToResources.get(index.shortName);
 498         // if (languageResources != null && languageResources.flagId != 0) {
 499         // langButton.setCompoundDrawablesWithIntrinsicBounds(0, 0,
 500         // languageResources.flagId, 0);
 501         // } else {
 502         // langButton.setCompoundDrawablesWithIntrinsicBounds(0, 0, 0, 0);
 503         langButton.setText(index.shortName);
 504         // }
 505         updateTTSLanuage();
 506     }
 507
 508     private void updateTTSLanuage() {
 509         if (!ttsReady) {
 510             return;
 511         }
 512         final Locale locale = new Locale(index.sortLanguage.getIsoCode());
 513         Log.d(LOG, "Setting TTS locale to: " + locale);
 514         final int ttsResult = textToSpeech.setLanguage(locale);
 515         if (ttsResult != TextToSpeech.LANG_AVAILABLE || ttsResult != TextToSpeech.LANG_COUNTRY_AVAILABLE) {
 516             Log.e(LOG, "TTS not available in this language: ttsResult=" + ttsResult);
 517         }
 518     }
 519
 520     void onLanguageButton() {
 521         if (currentSearchOperation != null) {
 522             currentSearchOperation.interrupted.set(true);
 523             currentSearchOperation = null;
 524         }
 525         changeIndexAndResearch((indexIndex + 1) % dictionary.indices.size());
 526     }
 527
 528     void onLanguageButtonLongClick(final Context context) {
 529         final Dialog dialog = new Dialog(context);
 530         dialog.setContentView(R.layout.select_dictionary_dialog);
 531         dialog.setTitle(R.string.selectDictionary);
 532
 533         final List<DictionaryInfo> installedDicts = ((DictionaryApplication) getApplication())
 534                 .getUsableDicts();
 535
 536         ListView listView = (ListView) dialog.findViewById(android.R.id.list);
 537
 538         // final LinearLayout.LayoutParams layoutParams = new
 539         // LinearLayout.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT,
 540         // ViewGroup.LayoutParams.WRAP_CONTENT);
 541         // layoutParams.width = 0;
 542         // layoutParams.weight = 1.0f;
 543
 544         final Button button = new Button(listView.getContext());
 545         final String name = getString(R.string.dictionaryManager);
 546         button.setText(name);
 547         final IntentLauncher intentLauncher = new IntentLauncher(listView.getContext(),
 548                 DictionaryManagerActivity.getLaunchIntent()) {
 549             @Override
 550             protected void onGo() {
 551                 dialog.dismiss();
 552                 DictionaryActivity.this.finish();
 553             };
 554         };
 555         button.setOnClickListener(intentLauncher);
 556         // button.setLayoutParams(layoutParams);
 557         listView.addHeaderView(button);
 558         // listView.setHeaderDividersEnabled(true);
 559
 560         listView.setAdapter(new BaseAdapter() {
 561             @Override
 562             public View getView(int position, View convertView, ViewGroup parent) {
 563                 final DictionaryInfo dictionaryInfo = getItem(position);
 564
 565                 final LinearLayout result = new LinearLayout(parent.getContext());
 566
 567                 for (int i = 0; i < dictionaryInfo.indexInfos.size(); ++i) {
 568                     if (i > 0) {
 569                         final TextView dash = new TextView(parent.getContext());
 570                         dash.setText("-");
 571                         result.addView(dash);
 572                     }
 573
 574                     final IndexInfo indexInfo = dictionaryInfo.indexInfos.get(i);
 575                     final Button button = new Button(parent.getContext());
 576                     button.setText(indexInfo.shortName);
 577                     final IntentLauncher intentLauncher = new IntentLauncher(parent.getContext(),
 578                             getLaunchIntent(
 579                                     application.getPath(dictionaryInfo.uncompressedFilename),
 580                                     i, searchText.getText().toString())) {
 581                         @Override
 582                         protected void onGo() {
 583                             dialog.dismiss();
 584                             DictionaryActivity.this.finish();
 585                         };
 586                     };
 587                     button.setOnClickListener(intentLauncher);
 588                     result.addView(button);
 589
 590                 }
 591
 592                 final TextView nameView = new TextView(parent.getContext());
 593                 final String name = application
 594                         .getDictionaryName(dictionaryInfo.uncompressedFilename);
 595                 nameView.setText(name);
 596                 final LinearLayout.LayoutParams layoutParams = new LinearLayout.LayoutParams(
 597                         ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT);
 598                 layoutParams.width = 0;
 599                 layoutParams.weight = 1.0f;
 600                 nameView.setLayoutParams(layoutParams);
 601                 result.addView(nameView);
 602
 603                 return result;
 604             }
 605
 606             @Override
 607             public long getItemId(int position) {
 608                 return position;
 609             }
 610
 611             @Override
 612             public DictionaryInfo getItem(int position) {
 613                 return installedDicts.get(position);
 614             }
 615
 616             @Override
 617             public int getCount() {
 618                 return installedDicts.size();
 619             }
 620         });
 621
 622         dialog.show();
 623     }
 624
 625     private void changeIndexAndResearch(int newIndex) {
 626         Log.d(LOG, "Changing index to: " + newIndex);
 627         if (newIndex == -1) {
 628             Log.e(LOG, "Invalid index.");
 629             newIndex = 0;
 630         }
 631         indexIndex = newIndex;
 632         index = dictionary.indices.get(indexIndex);
 633         indexAdapter = new IndexAdapter(index);
 634         Log.d(LOG, "changingIndex, newLang=" + index.longName);
 635         setDictionaryPrefs(this, dictFile, indexIndex, searchText.getText().toString());
 636         setListAdapter(indexAdapter);
 637         updateLangButton();
 638         setSearchText(searchText.getText().toString(), true);
 639     }
 640
 641     void onUpDownButton(final boolean up) {
 642         if (isFiltered()) {
 643             return;
 644         }
 645         final int firstVisibleRow = getListView().getFirstVisiblePosition();
 646         final RowBase row = index.rows.get(firstVisibleRow);
 647         final TokenRow tokenRow = row.getTokenRow(true);
 648         final int destIndexEntry;
 649         if (up) {
 650             if (row != tokenRow) {
 651                 destIndexEntry = tokenRow.referenceIndex;
 652             } else {
 653                 destIndexEntry = Math.max(tokenRow.referenceIndex - 1, 0);
 654             }
 655         } else {
 656             // Down
 657             destIndexEntry = Math.min(tokenRow.referenceIndex + 1, index.sortedIndexEntries.size());
 658         }
 659         final Index.IndexEntry dest = index.sortedIndexEntries.get(destIndexEntry);
 660         Log.d(LOG, "onUpDownButton, destIndexEntry=" + dest.token);
 661         setSearchText(dest.token, false);
 662         jumpToRow(index.sortedIndexEntries.get(destIndexEntry).startRow);
 663         defocusSearchText();
 664     }
 665
 666     // --------------------------------------------------------------------------
 667     // Options Menu
 668     // --------------------------------------------------------------------------
 669
 670     final Random random = new Random();
 671
 672     @Override
 673     public boolean onCreateOptionsMenu(final Menu menu) {
 674         application.onCreateGlobalOptionsMenu(this, menu);
 675
 676 //        {
 677 //            final MenuItem randomWord = menu.add(getString(R.string.randomWord));
 678 //            randomWord.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 679 //                public boolean onMenuItemClick(final MenuItem menuItem) {
 680 //                    final String word = index.sortedIndexEntries.get(random
 681 //                            .nextInt(index.sortedIndexEntries.size())).token;
 682 //                    setSearchText(word, true);
 683 //                    return false;
 684 //                }
 685 //            });
 686 //        }
 687
 688         {
 689             final MenuItem dictionaryList = menu.add(getString(R.string.dictionaryManager));
 690             dictionaryList.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 691                 public boolean onMenuItemClick(final MenuItem menuItem) {
 692                     startActivity(DictionaryManagerActivity.getLaunchIntent());
 693                     finish();
 694                     return false;
 695                 }
 696             });
 697         }
 698
 699         {
 700             final MenuItem aboutDictionary = menu.add(getString(R.string.aboutDictionary));
 701             aboutDictionary.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 702                 public boolean onMenuItemClick(final MenuItem menuItem) {
 703                     final Context context = getListView().getContext();
 704                     final Dialog dialog = new Dialog(context);
 705                     dialog.setContentView(R.layout.about_dictionary_dialog);
 706                     final TextView textView = (TextView) dialog.findViewById(R.id.text);
 707
 708                     final String name = application.getDictionaryName(dictFile.getName());
 709                     dialog.setTitle(name);
 710
 711                     final StringBuilder builder = new StringBuilder();
 712                     final DictionaryInfo dictionaryInfo = dictionary.getDictionaryInfo();
 713                     dictionaryInfo.uncompressedBytes = dictFile.length();
 714                     if (dictionaryInfo != null) {
 715                         builder.append(dictionaryInfo.dictInfo).append("\n\n");
 716                         builder.append(getString(R.string.dictionaryPath, dictFile.getPath()))
 717                                 .append("\n");
 718                         builder.append(
 719                                 getString(R.string.dictionarySize, dictionaryInfo.uncompressedBytes))
 720                                 .append("\n");
 721                         builder.append(
 722                                 getString(R.string.dictionaryCreationTime,
 723                                         dictionaryInfo.creationMillis)).append("\n");
 724                         for (final IndexInfo indexInfo : dictionaryInfo.indexInfos) {
 725                             builder.append("\n");
 726                             builder.append(getString(R.string.indexName, indexInfo.shortName))
 727                                     .append("\n");
 728                             builder.append(
 729                                     getString(R.string.mainTokenCount, indexInfo.mainTokenCount))
 730                                     .append("\n");
 731                         }
 732                         builder.append("\n");
 733                         builder.append(getString(R.string.sources)).append("\n");
 734                         for (final EntrySource source : dictionary.sources) {
 735                             builder.append(
 736                                     getString(R.string.sourceInfo, source.getName(),
 737                                             source.getNumEntries())).append("\n");
 738                         }
 739                     }
 740                     // } else {
 741                     // builder.append(getString(R.string.invalidDictionary));
 742                     // }
 743                     textView.setText(builder.toString());
 744
 745                     dialog.show();
 746                     final WindowManager.LayoutParams layoutParams = new WindowManager.LayoutParams();
 747                     layoutParams.width = WindowManager.LayoutParams.MATCH_PARENT;
 748                     layoutParams.height = WindowManager.LayoutParams.MATCH_PARENT;
 749                     dialog.getWindow().setAttributes(layoutParams);
 750                     return false;
 751                 }
 752             });
 753         }
 754
 755         return true;
 756     }
 757
 758     // --------------------------------------------------------------------------
 759     // Context Menu + clicks
 760     // --------------------------------------------------------------------------
 761
 762     @Override
 763     public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) {
 764         AdapterContextMenuInfo adapterContextMenuInfo = (AdapterContextMenuInfo) menuInfo;
 765         final RowBase row = (RowBase) getListAdapter().getItem(adapterContextMenuInfo.position);
 766
 767         final MenuItem addToWordlist = menu.add(getString(R.string.addToWordList,
 768                 wordList.getName()));
 769         addToWordlist.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 770             public boolean onMenuItemClick(MenuItem item) {
 771                 onAppendToWordList(row);
 772                 return false;
 773             }
 774         });
 775
 776         final MenuItem copy = menu.add(android.R.string.copy);
 777         copy.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 778             public boolean onMenuItemClick(MenuItem item) {
 779                 onCopy(row);
 780                 return false;
 781             }
 782         });
 783
 784         if (selectedSpannableText != null) {
 785             final String selectedText = selectedSpannableText;
 786             final MenuItem searchForSelection = menu.add(getString(R.string.searchForSelection,
 787                     selectedSpannableText));
 788             searchForSelection.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 789                 public boolean onMenuItemClick(MenuItem item) {
 790                     jumpToTextFromHyperLink(selectedText, selectedSpannableIndex);
 791                     return false;
 792                 }
 793             });
 794         }
 795
 796         if (row instanceof TokenRow && ttsReady) {
 797             final MenuItem speak = menu.add(R.string.speak);
 798             speak.setOnMenuItemClickListener(new OnMenuItemClickListener() {
 799                 @Override
 800                 public boolean onMenuItemClick(MenuItem item) {
 801                     textToSpeech.speak(((TokenRow) row).getToken(), TextToSpeech.QUEUE_FLUSH,
 802                             new HashMap<String, String>());
 803                     return false;
 804                 }
 805             });
 806         }
 807     }
 808
 809     private void jumpToTextFromHyperLink(final String selectedText, final int defaultIndexToUse) {
 810         int indexToUse = -1;
 811         for (int i = 0; i < dictionary.indices.size(); ++i) {
 812             final Index index = dictionary.indices.get(i);
 813             if (indexPrepFinished) {
 814                 System.out.println("Doing index lookup: on " + selectedText);
 815                 final IndexEntry indexEntry = index.findExact(selectedText);
 816                 if (indexEntry != null) {
 817                     final TokenRow tokenRow = index.rows.get(indexEntry.startRow)
 818                             .getTokenRow(false);
 819                     if (tokenRow != null && tokenRow.hasMainEntry) {
 820                         indexToUse = i;
 821                         break;
 822                     }
 823                 }
 824             } else {
 825                 Log.w(LOG, "Skipping findExact on index " + index.shortName);
 826             }
 827         }
 828         if (indexToUse == -1) {
 829             indexToUse = defaultIndexToUse;
 830         }
 831         final boolean changeIndex = indexIndex != indexToUse;
 832         if (changeIndex) {
 833             setSearchText(selectedText, false);
 834             changeIndexAndResearch(indexToUse);
 835         } else {
 836             setSearchText(selectedText, true);
 837         }
 838     }
 839
 840     @Override
 841     protected void onListItemClick(ListView l, View v, int row, long id) {
 842         defocusSearchText();
 843         if (clickOpensContextMenu && dictRaf != null) {
 844             openContextMenu(v);
 845         }
 846     }
 847
 848     void onAppendToWordList(final RowBase row) {
 849         defocusSearchText();
 850
 851         final StringBuilder rawText = new StringBuilder();
 852         rawText.append(new SimpleDateFormat("yyyy.MM.dd HH:mm:ss").format(new Date())).append("\t");
 853         rawText.append(index.longName).append("\t");
 854         rawText.append(row.getTokenRow(true).getToken()).append("\t");
 855         rawText.append(row.getRawText(saveOnlyFirstSubentry));
 856         Log.d(LOG, "Writing : " + rawText);
 857
 858         try {
 859             wordList.getParentFile().mkdirs();
 860             final PrintWriter out = new PrintWriter(new FileWriter(wordList, true));
 861             out.println(rawText.toString());
 862             out.close();
 863         } catch (IOException e) {
 864             Log.e(LOG, "Unable to append to " + wordList.getAbsolutePath(), e);
 865             Toast.makeText(this,
 866                     getString(R.string.failedAddingToWordList, wordList.getAbsolutePath()),
 867                     Toast.LENGTH_LONG).show();
 868         }
 869         return;
 870     }
 871
 872     /**
 873      * Called when user clicks outside of search text, so that they can start
 874      * typing again immediately.
 875      */
 876     void defocusSearchText() {
 877         // Log.d(LOG, "defocusSearchText");
 878         // Request focus so that if we start typing again, it clears the text
 879         // input.
 880         getListView().requestFocus();
 881
 882         // Visual indication that a new keystroke will clear the search text.
 883         // Doesn't seem to work unless earchText has focus.
 884         // searchText.selectAll();
 885     }
 886
 887     @SuppressWarnings("deprecation")
 888     void onCopy(final RowBase row) {
 889         defocusSearchText();
 890
 891         Log.d(LOG, "Copy, row=" + row);
 892         final StringBuilder result = new StringBuilder();
 893         result.append(row.getRawText(false));
 894         final ClipboardManager clipboardManager = (ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
 895         clipboardManager.setText(result.toString());
 896         Log.d(LOG, "Copied: " + result);
 897     }
 898
 899     @Override
 900     public boolean onKeyDown(final int keyCode, final KeyEvent event) {
 901         if (event.getUnicodeChar() != 0) {
 902             if (!searchText.hasFocus()) {
 903                 setSearchText("" + (char) event.getUnicodeChar(), true);
 904             }
 905             return true;
 906         }
 907         if (keyCode == KeyEvent.KEYCODE_BACK) {
 908             // Log.d(LOG, "Clearing dictionary prefs.");
 909             // Pretend that we just autolaunched so that we won't do it again.
 910             // DictionaryManagerActivity.lastAutoLaunchMillis =
 911             // System.currentTimeMillis();
 912         }
 913         if (keyCode == KeyEvent.KEYCODE_ENTER) {
 914             Log.d(LOG, "Trying to hide soft keyboard.");
 915             final InputMethodManager inputManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
 916             inputManager.hideSoftInputFromWindow(this.getCurrentFocus().getWindowToken(),
 917                     InputMethodManager.HIDE_NOT_ALWAYS);
 918             return true;
 919         }
 920         return super.onKeyDown(keyCode, event);
 921     }
 922
 923     private void setSearchText(final String text, final boolean triggerSearch) {
 924         if (!triggerSearch) {
 925             getListView().requestFocus();
 926         }
 927         searchText.setText(text);
 928         searchText.requestFocus();
 929         moveCursorToRight();
 930         if (triggerSearch) {
 931             onSearchTextChange(text);
 932         }
 933     }
 934
 935     private long cursorDelayMillis = 100;
 936
 937     private void moveCursorToRight() {
 938         if (searchText.getLayout() != null) {
 939             cursorDelayMillis = 100;
 940             // Surprising, but this can crash when you rotate...
 941             Selection.moveToRightEdge(searchText.getText(), searchText.getLayout());
 942         } else {
 943             uiHandler.postDelayed(new Runnable() {
 944                 @Override
 945                 public void run() {
 946                     moveCursorToRight();
 947                 }
 948             }, cursorDelayMillis);
 949             cursorDelayMillis = Math.min(10 * 1000, 2 * cursorDelayMillis);
 950         }
 951     }
 952
 953     // --------------------------------------------------------------------------
 954     // SearchOperation
 955     // --------------------------------------------------------------------------
 956
 957     private void searchFinished(final SearchOperation searchOperation) {
 958         if (searchOperation.interrupted.get()) {
 959             Log.d(LOG, "Search operation was interrupted: " + searchOperation);
 960             return;
 961         }
 962         if (searchOperation != this.currentSearchOperation) {
 963             Log.d(LOG, "Stale searchOperation finished: " + searchOperation);
 964             return;
 965         }
 966
 967         final Index.IndexEntry searchResult = searchOperation.searchResult;
 968         Log.d(LOG, "searchFinished: " + searchOperation + ", searchResult=" + searchResult);
 969
 970         currentSearchOperation = null;
 971         uiHandler.postDelayed(new Runnable() {
 972             @Override
 973             public void run() {
 974                 if (currentSearchOperation == null) {
 975                     if (searchResult != null) {
 976                         if (isFiltered()) {
 977                             clearFiltered();
 978                         }
 979                         jumpToRow(searchResult.startRow);
 980                     } else if (searchOperation.multiWordSearchResult != null) {
 981                         // Multi-row search....
 982                         setFiltered(searchOperation);
 983                     } else {
 984                         throw new IllegalStateException("This should never happen.");
 985                     }
 986                 } else {
 987                     Log.d(LOG, "More coming, waiting for currentSearchOperation.");
 988                 }
 989             }
 990         }, 20);
 991     }
 992
 993     private final void jumpToRow(final int row) {
 994         final boolean refocusSearchText = searchText.hasFocus();
 995         Log.d(LOG, "jumpToRow: " + row + ", refocusSearchText=" + refocusSearchText);
 996         getListView().requestFocusFromTouch();
 997         getListView().setSelectionFromTop(row, 0);
 998         getListView().setSelected(true);
 999         if (refocusSearchText) {
1000             searchText.requestFocus();
1001         }
1002         //Log.d(LOG, "getSelectedItemPosition():" + getSelectedItemPosition());
1003     }
1004
1005     static final Pattern WHITESPACE = Pattern.compile("\\s+");
1006
1007     final class SearchOperation implements Runnable {
1008
1009         final AtomicBoolean interrupted = new AtomicBoolean(false);
1010
1011         final String searchText;
1012
1013         List<String> searchTokens; // filled in for multiWord.
1014
1015         final Index index;
1016
1017         long searchStartMillis;
1018
1019         Index.IndexEntry searchResult;
1020
1021         List<RowBase> multiWordSearchResult;
1022
1023         boolean done = false;
1024
1025         SearchOperation(final String searchText, final Index index) {
1026             this.searchText = StringUtil.normalizeWhitespace(searchText);
1027             this.index = index;
1028         }
1029
1030         public String toString() {
1031             return String.format("SearchOperation(%s,%s)", searchText, interrupted.toString());
1032         }
1033
1034         @Override
1035         public void run() {
1036             try {
1037                 searchStartMillis = System.currentTimeMillis();
1038                 final String[] searchTokenArray = WHITESPACE.split(searchText);
1039                 if (searchTokenArray.length == 1) {
1040                     searchResult = index.findInsertionPoint(searchText, interrupted);
1041                 } else {
1042                     searchTokens = Arrays.asList(searchTokenArray);
1043                     multiWordSearchResult = index.multiWordSearch(searchText, searchTokens, interrupted);
1044                 }
1045                 Log.d(LOG,
1046                         "searchText=" + searchText + ", searchDuration="
1047                                 + (System.currentTimeMillis() - searchStartMillis)
1048                                 + ", interrupted=" + interrupted.get());
1049                 if (!interrupted.get()) {
1050                     uiHandler.post(new Runnable() {
1051                         @Override
1052                         public void run() {
1053                             searchFinished(SearchOperation.this);
1054                         }
1055                     });
1056                 } else {
1057                     Log.d(LOG, "interrupted, skipping searchFinished.");
1058                 }
1059             } catch (Exception e) {
1060                 Log.e(LOG, "Failure during search (can happen during Activity close.");
1061             } finally {
1062                 synchronized (this) {
1063                     done = true;
1064                     this.notifyAll();
1065                 }
1066             }
1067         }
1068     }
1069
1070     // --------------------------------------------------------------------------
1071     // IndexAdapter
1072     // --------------------------------------------------------------------------
1073
1074     static ViewGroup.LayoutParams WEIGHT_1 = new LinearLayout.LayoutParams(
1075             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 1.0f);
1076
1077     static ViewGroup.LayoutParams WEIGHT_0 = new LinearLayout.LayoutParams(
1078             ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.MATCH_PARENT, 0.0f);
1079
1080     final class IndexAdapter extends BaseAdapter {
1081
1082         private static final float PADDING_DEFAULT_DP = 8;
1083
1084         private static final float PADDING_LARGE_DP = 16;
1085
1086         final Index index;
1087
1088         final List<RowBase> rows;
1089
1090         final Set<String> toHighlight;
1091
1092         private int mPaddingDefault;
1093
1094         private int mPaddingLarge;
1095
1096         IndexAdapter(final Index index) {
1097             this.index = index;
1098             rows = index.rows;
1099             this.toHighlight = null;
1100             getMetrics();
1101         }
1102
1103         IndexAdapter(final Index index, final List<RowBase> rows, final List<String> toHighlight) {
1104             this.index = index;
1105             this.rows = rows;
1106             this.toHighlight = new LinkedHashSet<String>(toHighlight);
1107             getMetrics();
1108         }
1109
1110         private void getMetrics() {
1111             // Get the screen's density scale
1112             final float scale = getResources().getDisplayMetrics().density;
1113             // Convert the dps to pixels, based on density scale
1114             mPaddingDefault = (int) (PADDING_DEFAULT_DP * scale + 0.5f);
1115             mPaddingLarge = (int) (PADDING_LARGE_DP * scale + 0.5f);
1116         }
1117
1118         @Override
1119         public int getCount() {
1120             return rows.size();
1121         }
1122
1123         @Override
1124         public RowBase getItem(int position) {
1125             return rows.get(position);
1126         }
1127
1128         @Override
1129         public long getItemId(int position) {
1130             return getItem(position).index();
1131         }
1132
1133         @Override
1134         public TableLayout getView(int position, View convertView, ViewGroup parent) {
1135             final TableLayout result;
1136             if (convertView instanceof TableLayout) {
1137                 result = (TableLayout) convertView;
1138                 result.removeAllViews();
1139             } else {
1140                 result = new TableLayout(parent.getContext());
1141             }
1142             final RowBase row = getItem(position);
1143             if (row instanceof PairEntry.Row) {
1144                 return getView(position, (PairEntry.Row) row, parent, result);
1145             } else if (row instanceof TokenRow) {
1146                 return getView((TokenRow) row, parent, result);
1147             } else if (row instanceof HtmlEntry.Row) {
1148                 return getView((HtmlEntry.Row) row, parent, result);
1149             } else {
1150                 throw new IllegalArgumentException("Unsupported Row type: " + row.getClass());
1151             }
1152         }
1153
1154         private TableLayout getView(final int position, PairEntry.Row row, ViewGroup parent,
1155                 final TableLayout result) {
1156             final PairEntry entry = row.getEntry();
1157             final int rowCount = entry.pairs.size();
1158
1159             final TableRow.LayoutParams layoutParams = new TableRow.LayoutParams();
1160             layoutParams.weight = 0.5f;
1161             layoutParams.leftMargin = mPaddingLarge;
1162
1163             for (int r = 0; r < rowCount; ++r) {
1164                 final TableRow tableRow = new TableRow(result.getContext());
1165
1166                 final TextView col1 = new TextView(tableRow.getContext());
1167                 final TextView col2 = new TextView(tableRow.getContext());
1168
1169                 // Set the columns in the table.
1170                 if (r > 0) {
1171                     final TextView bullet = new TextView(tableRow.getContext());
1172                     bullet.setText(" • ");
1173                     tableRow.addView(bullet);
1174                 }
1175                 tableRow.addView(col1, layoutParams);
1176                 final TextView margin = new TextView(tableRow.getContext());
1177                 margin.setText(" ");
1178                 tableRow.addView(margin);
1179                 if (r > 0) {
1180                     final TextView bullet = new TextView(tableRow.getContext());
1181                     bullet.setText(" • ");
1182                     tableRow.addView(bullet);
1183                 }
1184                 tableRow.addView(col2, layoutParams);
1185                 col1.setWidth(1);
1186                 col2.setWidth(1);
1187
1188                 // Set what's in the columns.
1189
1190                 final Pair pair = entry.pairs.get(r);
1191                 final String col1Text = index.swapPairEntries ? pair.lang2 : pair.lang1;
1192                 final String col2Text = index.swapPairEntries ? pair.lang1 : pair.lang2;
1193
1194                 col1.setText(col1Text, TextView.BufferType.SPANNABLE);
1195                 col2.setText(col2Text, TextView.BufferType.SPANNABLE);
1196
1197                 // Bold the token instances in col1.
1198                 final Set<String> toBold = toHighlight != null ? this.toHighlight : Collections
1199                         .singleton(row.getTokenRow(true).getToken());
1200                 final Spannable col1Spannable = (Spannable) col1.getText();
1201                 for (final String token : toBold) {
1202                     int startPos = 0;
1203                     while ((startPos = col1Text.indexOf(token, startPos)) != -1) {
1204                         col1Spannable.setSpan(new StyleSpan(Typeface.BOLD), startPos, startPos
1205                                 + token.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1206                         startPos += token.length();
1207                     }
1208                 }
1209
1210                 createTokenLinkSpans(col1, col1Spannable, col1Text);
1211                 createTokenLinkSpans(col2, (Spannable) col2.getText(), col2Text);
1212
1213                 col1.setTypeface(typeface);
1214                 col2.setTypeface(typeface);
1215                 col1.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1216                 col2.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1217                 // col2.setBackgroundResource(theme.otherLangBg);
1218
1219                 if (index.swapPairEntries) {
1220                     col2.setOnLongClickListener(textViewLongClickListenerIndex0);
1221                     col1.setOnLongClickListener(textViewLongClickListenerIndex1);
1222                 } else {
1223                     col1.setOnLongClickListener(textViewLongClickListenerIndex0);
1224                     col2.setOnLongClickListener(textViewLongClickListenerIndex1);
1225                 }
1226
1227                 result.addView(tableRow);
1228             }
1229
1230             // Because we have a Button inside a ListView row:
1231             // http://groups.google.com/group/android-developers/browse_thread/thread/3d96af1530a7d62a?pli=1
1232             result.setDescendantFocusability(ViewGroup.FOCUS_BLOCK_DESCENDANTS);
1233             result.setClickable(true);
1234             result.setFocusable(true);
1235             result.setLongClickable(true);
1236             result.setBackgroundResource(android.R.drawable.menuitem_background);
1237             result.setOnClickListener(new TextView.OnClickListener() {
1238                 @Override
1239                 public void onClick(View v) {
1240                     DictionaryActivity.this.onListItemClick(getListView(), v, position, position);
1241                 }
1242             });
1243
1244             return result;
1245         }
1246
1247         private TableLayout getPossibleLinkToHtmlEntryView(final boolean isTokenRow,
1248                 final String text, final boolean hasMainEntry, final List<HtmlEntry> htmlEntries,
1249                 final String htmlTextToHighlight, ViewGroup parent, final TableLayout result) {
1250             final Context context = parent.getContext();
1251
1252             final TableRow tableRow = new TableRow(result.getContext());
1253             tableRow.setBackgroundResource(hasMainEntry ? theme.tokenRowMainBg
1254                     : theme.tokenRowOtherBg);
1255             if (isTokenRow) {
1256                 tableRow.setPadding(mPaddingDefault, mPaddingDefault, mPaddingDefault, 0);
1257             } else {
1258                 tableRow.setPadding(mPaddingLarge, mPaddingDefault, mPaddingDefault, 0);
1259             }
1260             result.addView(tableRow);
1261
1262             // Make it so we can long-click on these token rows, too:
1263             final TextView textView = new TextView(context);
1264             textView.setText(text, BufferType.SPANNABLE);
1265             createTokenLinkSpans(textView, (Spannable) textView.getText(), text);
1266             final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1267                     0);
1268             textView.setOnLongClickListener(textViewLongClickListenerIndex0);
1269             result.setLongClickable(true);
1270
1271             // Doesn't work:
1272             // textView.setTextColor(android.R.color.secondary_text_light);
1273             textView.setTypeface(typeface);
1274             TableRow.LayoutParams lp = new TableRow.LayoutParams(0);
1275             if (isTokenRow) {
1276                 textView.setTextAppearance(context, theme.tokenRowFg);
1277                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, 4 * fontSizeSp / 3);
1278             } else {
1279                 textView.setTextSize(TypedValue.COMPLEX_UNIT_SP, fontSizeSp);
1280             }
1281             lp.weight = 1.0f;
1282
1283             textView.setLayoutParams(lp);
1284             tableRow.addView(textView);
1285
1286             if (!htmlEntries.isEmpty()) {
1287                 final ClickableSpan clickableSpan = new ClickableSpan() {
1288                     @Override
1289                     public void onClick(View widget) {
1290                     }
1291                 };
1292                 ((Spannable) textView.getText()).setSpan(clickableSpan, 0, text.length(), Spannable.SPAN_INCLUSIVE_INCLUSIVE);
1293                 result.setClickable(true);
1294                 textView.setClickable(true);
1295                 textView.setMovementMethod(LinkMovementMethod.getInstance());
1296                 textView.setOnClickListener(new OnClickListener() {
1297                     @Override
1298                     public void onClick(View v) {
1299                         String html = HtmlEntry.htmlBody(htmlEntries, index.shortName);
1300                         Log.d(LOG, "html=" + html);
1301                         startActivityForResult(
1302                                 HtmlDisplayActivity.getHtmlIntent(String.format(
1303                                         "<html><head></head><body>%s</body></html>", html),
1304                                         htmlTextToHighlight, false),
1305                                 0);
1306                     }
1307                 });
1308             }
1309             return result;
1310         }
1311
1312         private TableLayout getView(TokenRow row, ViewGroup parent, final TableLayout result) {
1313             final IndexEntry indexEntry = row.getIndexEntry();
1314             return getPossibleLinkToHtmlEntryView(true, indexEntry.token, row.hasMainEntry,
1315                     indexEntry.htmlEntries, null, parent, result);
1316         }
1317
1318         private TableLayout getView(HtmlEntry.Row row, ViewGroup parent, final TableLayout result) {
1319             final HtmlEntry htmlEntry = row.getEntry();
1320             final TokenRow tokenRow = row.getTokenRow(true);
1321             return getPossibleLinkToHtmlEntryView(false,
1322                     getString(R.string.seeAlso, htmlEntry.title, htmlEntry.entrySource.getName()),
1323                     false, Collections.singletonList(htmlEntry), tokenRow.getToken(), parent,
1324                     result);
1325         }
1326
1327     }
1328
1329     static final Pattern CHAR_DASH = Pattern.compile("['\\p{L}\\p{M}\\p{N}]+");
1330
1331     private void createTokenLinkSpans(final TextView textView, final Spannable spannable,
1332             final String text) {
1333         // Saw from the source code that LinkMovementMethod sets the selection!
1334         // http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/2.3.1_r1/android/text/method/LinkMovementMethod.java#LinkMovementMethod
1335         textView.setMovementMethod(LinkMovementMethod.getInstance());
1336         final Matcher matcher = CHAR_DASH.matcher(text);
1337         while (matcher.find()) {
1338             spannable.setSpan(new NonLinkClickableSpan(textColorFg), matcher.start(), matcher.end(),
1339                     Spannable.SPAN_INCLUSIVE_EXCLUSIVE);
1340         }
1341     }
1342
1343     String selectedSpannableText = null;
1344
1345     int selectedSpannableIndex = -1;
1346
1347     @Override
1348     public boolean onTouchEvent(MotionEvent event) {
1349         selectedSpannableText = null;
1350         selectedSpannableIndex = -1;
1351         return super.onTouchEvent(event);
1352     }
1353
1354     private class TextViewLongClickListener implements OnLongClickListener {
1355         final int index;
1356
1357         private TextViewLongClickListener(final int index) {
1358             this.index = index;
1359         }
1360
1361         @Override
1362         public boolean onLongClick(final View v) {
1363             final TextView textView = (TextView) v;
1364             final int start = textView.getSelectionStart();
1365             final int end = textView.getSelectionEnd();
1366             if (start >= 0 && end >= 0) {
1367                 selectedSpannableText = textView.getText().subSequence(start, end).toString();
1368                 selectedSpannableIndex = index;
1369             }
1370             return false;
1371         }
1372     }
1373
1374     final TextViewLongClickListener textViewLongClickListenerIndex0 = new TextViewLongClickListener(
1375             0);
1376
1377     final TextViewLongClickListener textViewLongClickListenerIndex1 = new TextViewLongClickListener(
1378             1);
1379
1380     // --------------------------------------------------------------------------
1381     // SearchText
1382     // --------------------------------------------------------------------------
1383
1384     void onSearchTextChange(final String text) {
1385         if ("thadolina".equals(text)) {
1386             final Dialog dialog = new Dialog(getListView().getContext());
1387             dialog.setContentView(R.layout.thadolina_dialog);
1388             dialog.setTitle("Ti amo, amore mio!");
1389             final ImageView imageView = (ImageView) dialog.findViewById(R.id.thadolina_image);
1390             imageView.setOnClickListener(new OnClickListener() {
1391                 @Override
1392                 public void onClick(View v) {
1393                     final Intent intent = new Intent(Intent.ACTION_VIEW);
1394                     intent.setData(Uri.parse("https://sites.google.com/site/cfoxroxvday/vday2012"));
1395                     startActivity(intent);
1396                 }
1397             });
1398             dialog.show();
1399         }
1400         if (dictRaf == null) {
1401             Log.d(LOG, "searchText changed during shutdown, doing nothing.");
1402             return;
1403         }
1404         if (!searchText.isFocused()) {
1405             Log.d(LOG, "searchText changed without focus, doing nothing.");
1406             return;
1407         }
1408         Log.d(LOG, "onSearchTextChange: " + text);
1409         if (currentSearchOperation != null) {
1410             Log.d(LOG, "Interrupting currentSearchOperation.");
1411             currentSearchOperation.interrupted.set(true);
1412         }
1413         currentSearchOperation = new SearchOperation(text, index);
1414         searchExecutor.execute(currentSearchOperation);
1415     }
1416
1417     private class SearchTextWatcher implements TextWatcher {
1418         public void afterTextChanged(final Editable searchTextEditable) {
1419             if (searchText.hasFocus()) {
1420                 Log.d(LOG, "SearchTextWatcher: Search text changed with focus: " + searchText.getText());
1421                 // If they were typing to cause the change, update the UI.
1422                 onSearchTextChange(searchText.getText().toString());
1423             }
1424         }
1425
1426         public void beforeTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
1427         }
1428
1429         public void onTextChanged(CharSequence arg0, int arg1, int arg2, int arg3) {
1430         }
1431     }
1432
1433     // --------------------------------------------------------------------------
1434     // Filtered results.
1435     // --------------------------------------------------------------------------
1436
1437     boolean isFiltered() {
1438         return rowsToShow != null;
1439     }
1440
1441     void setFiltered(final SearchOperation searchOperation) {
1442         ((ImageButton) findViewById(R.id.UpButton)).setEnabled(false);
1443         ((ImageButton) findViewById(R.id.DownButton)).setEnabled(false);
1444         rowsToShow = searchOperation.multiWordSearchResult;
1445         setListAdapter(new IndexAdapter(index, rowsToShow, searchOperation.searchTokens));
1446     }
1447
1448     void clearFiltered() {
1449         ((ImageButton) findViewById(R.id.UpButton)).setEnabled(true);
1450         ((ImageButton) findViewById(R.id.DownButton)).setEnabled(true);
1451         setListAdapter(new IndexAdapter(index));
1452         rowsToShow = null;
1453     }
1454
1455 }