src/com/hughes/android/dictionary/DictionaryManagerActivity.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.AlertDialog;
  18 import android.app.DownloadManager;
  19 import android.app.DownloadManager.Request;
  20 import android.content.BroadcastReceiver;
  21 import android.content.Context;
  22 import android.content.Intent;
  23 import android.content.IntentFilter;
  24 import android.content.SharedPreferences;
  25 import android.content.SharedPreferences.Editor;
  26 import android.database.Cursor;
  27 import android.net.Uri;
  28 import android.os.Bundle;
  29 import android.os.Environment;
  30 import android.os.Handler;
  31 import android.preference.PreferenceManager;
  32 import android.support.v7.app.ActionBar;
  33 import android.support.v7.app.ActionBarActivity;
  34 import android.support.v7.widget.SearchView;
  35 import android.support.v7.widget.SearchView.OnQueryTextListener;
  36 import android.util.Log;
  37 import android.util.TypedValue;
  38 import android.view.ContextMenu;
  39 import android.view.ContextMenu.ContextMenuInfo;
  40 import android.view.LayoutInflater;
  41 import android.view.Menu;
  42 import android.view.View;
  43 import android.view.View.OnClickListener;
  44 import android.view.ViewGroup;
  45 import android.view.inputmethod.EditorInfo;
  46 import android.widget.AdapterView.AdapterContextMenuInfo;
  47 import android.widget.BaseAdapter;
  48 import android.widget.Button;
  49 import android.widget.CompoundButton;
  50 import android.widget.CompoundButton.OnCheckedChangeListener;
  51 import android.widget.FrameLayout;
  52 import android.widget.LinearLayout;
  53 import android.widget.ListAdapter;
  54 import android.widget.ListView;
  55 import android.widget.TextView;
  56 import android.widget.Toast;
  57 import android.widget.ToggleButton;
  58
  59 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  60 import com.hughes.android.util.IntentLauncher;
  61
  62 import java.io.File;
  63 import java.io.FileOutputStream;
  64 import java.io.IOException;
  65 import java.io.InputStream;
  66 import java.io.OutputStream;
  67 import java.net.MalformedURLException;
  68 import java.net.URL;
  69 import java.util.Collections;
  70 import java.util.List;
  71 import java.util.zip.ZipEntry;
  72 import java.util.zip.ZipFile;
  73
  74 // Right-click:
  75 //  Delete, move to top.
  76
  77 public class DictionaryManagerActivity extends ActionBarActivity {
  78
  79     static final String LOG = "QuickDic";
  80     static boolean blockAutoLaunch = false;
  81
  82     private ListView listView;
  83     private ListView getListView() {
  84         if (listView == null) {
  85             listView = (ListView)findViewById(android.R.id.list);
  86         }
  87         return listView;
  88     }
  89     private void setListAdapter(ListAdapter adapter) {
  90         getListView().setAdapter(adapter);
  91     }
  92     private ListAdapter getListAdapter() {
  93         return getListView().getAdapter();
  94     }
  95
  96     DictionaryApplication application;
  97
  98     SearchView filterSearchView;
  99     ToggleButton showDownloadable;
 100
 101     LinearLayout dictionariesOnDeviceHeaderRow;
 102     LinearLayout downloadableDictionariesHeaderRow;
 103
 104     Handler uiHandler;
 105
 106     Runnable dictionaryUpdater = new Runnable() {
 107         @Override
 108         public void run() {
 109             if (uiHandler == null) {
 110                 return;
 111             }
 112             uiHandler.post(new Runnable() {
 113                 @Override
 114                 public void run() {
 115                     setMyListAdapater();
 116                 }
 117             });
 118         }
 119     };
 120
 121     final BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
 122         @Override
 123         public void onReceive(Context context, Intent intent) {
 124             final String action = intent.getAction();
 125
 126             if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {
 127                 final long downloadId = intent.getLongExtra(
 128                         DownloadManager.EXTRA_DOWNLOAD_ID, 0);
 129                 final DownloadManager.Query query = new DownloadManager.Query();
 130                 query.setFilterById(downloadId);
 131                 final DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 132                 final Cursor cursor = downloadManager.query(query);
 133
 134                 if (cursor == null || !cursor.moveToFirst()) {
 135                     Log.e(LOG, "Couldn't find download.");
 136                     return;
 137                 }
 138
 139                 final String dest = cursor
 140                         .getString(cursor.getColumnIndex(DownloadManager.COLUMN_LOCAL_URI));
 141                 final int status = cursor
 142                         .getInt(cursor
 143                                 .getColumnIndex(DownloadManager.COLUMN_STATUS));
 144                 if (DownloadManager.STATUS_SUCCESSFUL != status) {
 145                     final int reason = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_REASON));
 146                     Log.w(LOG,
 147                             "Download failed: status=" + status +
 148                                     ", reason=" + reason);
 149                     String msg = Integer.toString(reason);
 150                     switch (reason) {
 151                     case DownloadManager.ERROR_FILE_ALREADY_EXISTS: msg = "File exists"; break;
 152                     case DownloadManager.ERROR_FILE_ERROR: msg = "File error"; break;
 153                     case DownloadManager.ERROR_INSUFFICIENT_SPACE: msg = "Not enough space"; break;
 154                     }
 155                     new AlertDialog.Builder(context).setTitle(getString(R.string.error)).setMessage(getString(R.string.downloadFailed, reason)).setNeutralButton("Close", null).show();
 156                     return;
 157                 }
 158
 159                 Log.w(LOG, "Download finished: " + dest);
 160                 Toast.makeText(context, getString(R.string.unzippingDictionary, dest),
 161                         Toast.LENGTH_LONG).show();
 162
 163
 164                 final File localZipFile = new File(Uri.parse(dest).getPath());
 165                 try {
 166                     ZipFile zipFile = new ZipFile(localZipFile);
 167                     final ZipEntry zipEntry = zipFile.entries().nextElement();
 168                     Log.d(LOG, "Unzipping entry: " + zipEntry.getName());
 169                     final InputStream zipIn = zipFile.getInputStream(zipEntry);
 170                     File targetFile = new File(application.getDictDir(), zipEntry.getName());
 171                     if (targetFile.exists()) {
 172                         targetFile.renameTo(new File(targetFile.getAbsolutePath().replace(".quickdic", ".bak.quickdic")));
 173                         targetFile = new File(application.getDictDir(), zipEntry.getName());
 174                     }
 175                     final OutputStream zipOut = new FileOutputStream(targetFile);
 176                     copyStream(zipIn, zipOut);
 177                     zipFile.close();
 178                     application.backgroundUpdateDictionaries(dictionaryUpdater);
 179                     Toast.makeText(context, getString(R.string.installationFinished, dest),
 180                             Toast.LENGTH_LONG).show();
 181                 } catch (Exception e) {
 182                     String msg = getString(R.string.unzippingFailed, dest);
 183                     File dir = application.getDictDir();
 184                     if (!dir.canWrite() || !application.checkFileCreate(dir)) {
 185                         msg = getString(R.string.notWritable, dir.getAbsolutePath());
 186                     }
 187                     new AlertDialog.Builder(context).setTitle(getString(R.string.error)).setMessage(msg).setNeutralButton("Close", null).show();
 188                     Log.e(LOG, "Failed to unzip.", e);
 189                 } finally {
 190                     localZipFile.delete();
 191                 }
 192             }
 193         }
 194     };
 195
 196     public static Intent getLaunchIntent(Context c) {
 197         final Intent intent = new Intent(c, DictionaryManagerActivity.class);
 198         intent.putExtra(C.CAN_AUTO_LAUNCH_DICT, false);
 199         return intent;
 200     }
 201
 202     @Override
 203     public void onCreate(Bundle savedInstanceState) {
 204         // This must be first, otherwise the actiona bar doesn't get
 205         // styled properly.
 206         setTheme(((DictionaryApplication) getApplication()).getSelectedTheme().themeId);
 207
 208         super.onCreate(savedInstanceState);
 209         Log.d(LOG, "onCreate:" + this);
 210
 211         application = (DictionaryApplication) getApplication();
 212
 213         blockAutoLaunch = false;
 214
 215         // UI init.
 216         setContentView(R.layout.dictionary_manager_activity);
 217
 218         dictionariesOnDeviceHeaderRow = (LinearLayout) LayoutInflater.from(
 219                 getListView().getContext()).inflate(
 220                 R.layout.dictionary_manager_header_row_on_device, getListView(), false);
 221
 222         downloadableDictionariesHeaderRow = (LinearLayout) LayoutInflater.from(
 223                 getListView().getContext()).inflate(
 224                 R.layout.dictionary_manager_header_row_downloadable, getListView(), false);
 225
 226         showDownloadable = (ToggleButton) downloadableDictionariesHeaderRow
 227                 .findViewById(R.id.hideDownloadable);
 228         showDownloadable.setOnCheckedChangeListener(new OnCheckedChangeListener() {
 229             @Override
 230             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 231                 onShowDownloadableChanged();
 232             }
 233         });
 234
 235         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 236         final String thanksForUpdatingLatestVersion = getString(R.string.thanksForUpdatingVersion);
 237         if (!prefs.getString(C.THANKS_FOR_UPDATING_VERSION, "").equals(
 238                 thanksForUpdatingLatestVersion)) {
 239             blockAutoLaunch = true;
 240             startActivity(HtmlDisplayActivity.getWhatsNewLaunchIntent(getApplicationContext()));
 241             prefs.edit().putString(C.THANKS_FOR_UPDATING_VERSION, thanksForUpdatingLatestVersion)
 242                     .commit();
 243         }
 244
 245         registerReceiver(broadcastReceiver, new IntentFilter(
 246                 DownloadManager.ACTION_DOWNLOAD_COMPLETE));
 247
 248         setMyListAdapater();
 249         registerForContextMenu(getListView());
 250
 251         final File dictDir = application.getDictDir();
 252         if (!dictDir.canRead() || !dictDir.canExecute()) {
 253             blockAutoLaunch = true;
 254
 255             AlertDialog.Builder builder = new AlertDialog.Builder(getListView().getContext());
 256             builder.setTitle(getString(R.string.error));
 257             builder.setMessage(getString(
 258                     R.string.unableToReadDictionaryDir,
 259                     dictDir.getAbsolutePath(),
 260                     Environment.getExternalStorageDirectory()));
 261             builder.setNeutralButton("Close", null);
 262             builder.create().show();
 263         }
 264
 265         onCreateSetupActionBar();
 266     }
 267
 268     private void onCreateSetupActionBar() {
 269         ActionBar actionBar = getSupportActionBar();
 270         actionBar.setDisplayShowTitleEnabled(false);
 271
 272         filterSearchView = new SearchView(getSupportActionBar().getThemedContext());
 273         filterSearchView.setIconifiedByDefault(false);
 274         // filterSearchView.setIconified(false); // puts the magnifying glass in
 275         // the
 276         // wrong place.
 277         filterSearchView.setQueryHint(getString(R.string.searchText));
 278         filterSearchView.setSubmitButtonEnabled(false);
 279         final int width = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 300,
 280                 getResources().getDisplayMetrics());
 281         FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(width,
 282                 FrameLayout.LayoutParams.WRAP_CONTENT);
 283         filterSearchView.setLayoutParams(lp);
 284         filterSearchView.setImeOptions(
 285                 EditorInfo.IME_ACTION_SEARCH |
 286                         EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 287                         EditorInfo.IME_FLAG_NO_ENTER_ACTION |
 288                         // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 289                         // 11
 290                         EditorInfo.IME_MASK_ACTION |
 291                         EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 292
 293         filterSearchView.setOnQueryTextListener(new OnQueryTextListener() {
 294             @Override
 295             public boolean onQueryTextSubmit(String query) {
 296                 return true;
 297             }
 298
 299             @Override
 300             public boolean onQueryTextChange(String filterText) {
 301                 setMyListAdapater();
 302                 return true;
 303             }
 304         });
 305         filterSearchView.setFocusable(true);
 306
 307         actionBar.setCustomView(filterSearchView);
 308         actionBar.setDisplayShowCustomEnabled(true);
 309     }
 310
 311     @Override
 312     public void onDestroy() {
 313         super.onDestroy();
 314         unregisterReceiver(broadcastReceiver);
 315     }
 316
 317     private static int copyStream(final InputStream in, final OutputStream out)
 318             throws IOException {
 319         int bytesRead;
 320         final byte[] bytes = new byte[1024 * 16];
 321         while ((bytesRead = in.read(bytes)) != -1) {
 322             out.write(bytes, 0, bytesRead);
 323         }
 324         in.close();
 325         out.close();
 326         return bytesRead;
 327     }
 328
 329     @Override
 330     protected void onStart() {
 331         super.onStart();
 332         uiHandler = new Handler();
 333     }
 334
 335     @Override
 336     protected void onStop() {
 337         super.onStop();
 338         uiHandler = null;
 339     }
 340
 341     @Override
 342     protected void onResume() {
 343         super.onResume();
 344
 345         if (PreferenceActivity.prefsMightHaveChanged) {
 346             PreferenceActivity.prefsMightHaveChanged = false;
 347             finish();
 348             startActivity(getIntent());
 349         }
 350
 351         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 352         showDownloadable.setChecked(prefs.getBoolean(C.SHOW_DOWNLOADABLE, true));
 353
 354         if (!blockAutoLaunch &&
 355                 getIntent().getBooleanExtra(C.CAN_AUTO_LAUNCH_DICT, true) &&
 356                 prefs.contains(C.DICT_FILE) &&
 357                 prefs.contains(C.INDEX_SHORT_NAME)) {
 358             Log.d(LOG, "Skipping DictionaryManager, going straight to dictionary.");
 359             startActivity(DictionaryActivity.getLaunchIntent(getApplicationContext(),
 360                     new File(prefs.getString(C.DICT_FILE, "")),
 361                     prefs.getString(C.INDEX_SHORT_NAME, ""),
 362                     prefs.getString(C.SEARCH_TOKEN, "")));
 363             finish();
 364             return;
 365         }
 366
 367         // Remove the active dictionary from the prefs so we won't autolaunch
 368         // next time.
 369         final Editor editor = prefs.edit();
 370         editor.remove(C.DICT_FILE);
 371         editor.remove(C.INDEX_SHORT_NAME);
 372         editor.remove(C.SEARCH_TOKEN);
 373         editor.commit();
 374
 375         application.backgroundUpdateDictionaries(dictionaryUpdater);
 376
 377         setMyListAdapater();
 378     }
 379
 380     @Override
 381     public boolean onCreateOptionsMenu(final Menu menu) {
 382         application.onCreateGlobalOptionsMenu(this, menu);
 383         return true;
 384     }
 385
 386     @Override
 387     public void onCreateContextMenu(final ContextMenu menu, final View view,
 388             final ContextMenuInfo menuInfo) {
 389         super.onCreateContextMenu(menu, view, menuInfo);
 390         Log.d(LOG, "onCreateContextMenu, " + menuInfo);
 391
 392         final AdapterContextMenuInfo adapterContextMenuInfo =
 393                 (AdapterContextMenuInfo) menuInfo;
 394         final int position = adapterContextMenuInfo.position;
 395         final MyListAdapter.Row row = (MyListAdapter.Row) getListAdapter().getItem(position);
 396
 397         if (row.dictionaryInfo == null) {
 398             return;
 399         }
 400
 401         if (position > 0 && row.onDevice) {
 402             final android.view.MenuItem moveToTopMenuItem =
 403                     menu.add(R.string.moveToTop);
 404             moveToTopMenuItem.setOnMenuItemClickListener(new
 405                     android.view.MenuItem.OnMenuItemClickListener() {
 406                         @Override
 407                         public boolean onMenuItemClick(android.view.MenuItem item) {
 408                             application.moveDictionaryToTop(row.dictionaryInfo);
 409                             setMyListAdapater();
 410                             return true;
 411                         }
 412                     });
 413         }
 414
 415         if (row.onDevice) {
 416             final android.view.MenuItem deleteMenuItem = menu.add(R.string.deleteDictionary);
 417             deleteMenuItem
 418                     .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 419                         @Override
 420                         public boolean onMenuItemClick(android.view.MenuItem item) {
 421                             application.deleteDictionary(row.dictionaryInfo);
 422                             setMyListAdapater();
 423                             return true;
 424                         }
 425                     });
 426         }
 427     }
 428
 429     private void onShowDownloadableChanged() {
 430         setMyListAdapater();
 431         Editor prefs = PreferenceManager.getDefaultSharedPreferences(this).edit();
 432         prefs.putBoolean(C.SHOW_DOWNLOADABLE, showDownloadable.isChecked());
 433         prefs.commit();
 434     }
 435
 436     class MyListAdapter extends BaseAdapter {
 437
 438         List<DictionaryInfo> dictionariesOnDevice;
 439         List<DictionaryInfo> downloadableDictionaries;
 440
 441         class Row {
 442             DictionaryInfo dictionaryInfo;
 443             boolean onDevice;
 444
 445             private Row(DictionaryInfo dictinoaryInfo, boolean onDevice) {
 446                 this.dictionaryInfo = dictinoaryInfo;
 447                 this.onDevice = onDevice;
 448             }
 449         }
 450
 451         private MyListAdapter(final String[] filters) {
 452             dictionariesOnDevice = application.getDictionariesOnDevice(filters);
 453             if (showDownloadable.isChecked()) {
 454                 downloadableDictionaries = application.getDownloadableDictionaries(filters);
 455             } else {
 456                 downloadableDictionaries = Collections.emptyList();
 457             }
 458         }
 459
 460         @Override
 461         public int getCount() {
 462             return 2 + dictionariesOnDevice.size() + downloadableDictionaries.size();
 463         }
 464
 465         @Override
 466         public Row getItem(int position) {
 467             if (position == 0) {
 468                 return new Row(null, true);
 469             }
 470             position -= 1;
 471
 472             if (position < dictionariesOnDevice.size()) {
 473                 return new Row(dictionariesOnDevice.get(position), true);
 474             }
 475             position -= dictionariesOnDevice.size();
 476
 477             if (position == 0) {
 478                 return new Row(null, false);
 479             }
 480             position -= 1;
 481
 482             assert position < downloadableDictionaries.size();
 483             return new Row(downloadableDictionaries.get(position), false);
 484         }
 485
 486         @Override
 487         public long getItemId(int position) {
 488             return position;
 489         }
 490
 491         @Override
 492         public View getView(int position, View convertView, ViewGroup parent) {
 493             if (convertView instanceof LinearLayout &&
 494                     convertView != dictionariesOnDeviceHeaderRow &&
 495                     convertView != downloadableDictionariesHeaderRow) {
 496                 /*
 497                  * This is done to try to avoid leaking memory that used to
 498                  * happen on Android 4.0.3
 499                  */
 500                 ((LinearLayout) convertView).removeAllViews();
 501             }
 502
 503             final Row row = getItem(position);
 504
 505             if (row.onDevice) {
 506                 if (row.dictionaryInfo == null) {
 507                     return dictionariesOnDeviceHeaderRow;
 508                 }
 509                 return createDictionaryRow(row.dictionaryInfo, parent, true);
 510             }
 511
 512             if (row.dictionaryInfo == null) {
 513                 return downloadableDictionariesHeaderRow;
 514             }
 515             return createDictionaryRow(row.dictionaryInfo, parent, false);
 516         }
 517
 518     }
 519
 520     private void setMyListAdapater() {
 521         final String filter = filterSearchView == null ? "" : filterSearchView.getQuery()
 522                 .toString();
 523         final String[] filters = filter.trim().toLowerCase().split("(\\s|-)+");
 524         setListAdapter(new MyListAdapter(filters));
 525     }
 526
 527     private View createDictionaryRow(final DictionaryInfo dictionaryInfo,
 528             final ViewGroup parent, boolean canLaunch) {
 529
 530         View row = LayoutInflater.from(parent.getContext()).inflate(
 531                 R.layout.dictionary_manager_row, parent, false);
 532         final TextView name = (TextView) row.findViewById(R.id.dictionaryName);
 533         final TextView details = (TextView) row.findViewById(R.id.dictionaryDetails);
 534         name.setText(application.getDictionaryName(dictionaryInfo.uncompressedFilename));
 535
 536         final boolean updateAvailable = application.updateAvailable(dictionaryInfo);
 537         final Button downloadButton = (Button) row.findViewById(R.id.downloadButton);
 538         final DictionaryInfo downloadable = application.getDownloadable(dictionaryInfo.uncompressedFilename);
 539         boolean broken = false;
 540         if (!dictionaryInfo.isValid()) {
 541             broken = true;
 542             canLaunch = false;
 543         }
 544         if (downloadable != null && (!canLaunch || updateAvailable)) {
 545             downloadButton
 546                     .setText(getString(
 547                             R.string.downloadButton,
 548                             downloadable.zipBytes / 1024.0 / 1024.0));
 549             downloadButton.setMinWidth(application.languageButtonPixels * 3 / 2);
 550             downloadButton.setOnClickListener(new OnClickListener() {
 551                 @Override
 552                 public void onClick(View arg0) {
 553                     downloadDictionary(downloadable.downloadUrl, downloadable.zipBytes, downloadButton);
 554                 }
 555             });
 556         } else {
 557             downloadButton.setVisibility(View.INVISIBLE);
 558         }
 559
 560         LinearLayout buttons = (LinearLayout) row.findViewById(R.id.dictionaryLauncherButtons);
 561         final List<IndexInfo> sortedIndexInfos = application
 562                 .sortedIndexInfos(dictionaryInfo.indexInfos);
 563         final StringBuilder builder = new StringBuilder();
 564         if (updateAvailable) {
 565             builder.append(getString(R.string.updateAvailable));
 566         }
 567         for (IndexInfo indexInfo : sortedIndexInfos) {
 568             final View button = application.createButton(buttons.getContext(), dictionaryInfo,
 569                     indexInfo);
 570             buttons.addView(button);
 571
 572             if (canLaunch) {
 573                 button.setOnClickListener(
 574                         new IntentLauncher(buttons.getContext(),
 575                                 DictionaryActivity.getLaunchIntent(getApplicationContext(),
 576                                         application.getPath(dictionaryInfo.uncompressedFilename),
 577                                         indexInfo.shortName, "")));
 578
 579             } else {
 580                 button.setEnabled(false);
 581             }
 582             if (builder.length() != 0) {
 583                 builder.append("; ");
 584             }
 585             builder.append(getString(R.string.indexInfo, indexInfo.shortName,
 586                     indexInfo.mainTokenCount));
 587         }
 588         if (downloadable != null || dictionaryInfo != null) {
 589             builder.append("; ");
 590             builder.append(getString(R.string.downloadButton, (dictionaryInfo != null ? dictionaryInfo.uncompressedBytes : downloadable.uncompressedBytes) / 1024.0 / 1024.0));
 591         }
 592         if (broken) {
 593             name.setText("Broken: " + application.getDictionaryName(dictionaryInfo.uncompressedFilename));
 594             builder.append("; Cannot be used, redownload, check hardware/file system");
 595             // Allow deleting, but cannot open
 596             row.setLongClickable(true);
 597         }
 598         details.setText(builder.toString());
 599
 600         if (canLaunch) {
 601             row.setClickable(true);
 602             row.setOnClickListener(new IntentLauncher(parent.getContext(),
 603                     DictionaryActivity.getLaunchIntent(getApplicationContext(),
 604                             application.getPath(dictionaryInfo.uncompressedFilename),
 605                             dictionaryInfo.indexInfos.get(0).shortName, "")));
 606             row.setFocusable(true);
 607             row.setLongClickable(true);
 608         }
 609         row.setBackgroundResource(android.R.drawable.menuitem_background);
 610
 611         return row;
 612     }
 613
 614     private void downloadDictionary(final String downloadUrl, long bytes, Button downloadButton) {
 615         DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 616         final DownloadManager.Query query = new DownloadManager.Query();
 617         query.setFilterByStatus(DownloadManager.STATUS_PAUSED | DownloadManager.STATUS_PENDING | DownloadManager.STATUS_RUNNING);
 618         final Cursor cursor = downloadManager.query(query);
 619
 620         // Due to a bug, cursor is null instead of empty when
 621         // the download manager is disabled.
 622         if (cursor == null) {
 623             new AlertDialog.Builder(DictionaryManagerActivity.this).setTitle(getString(R.string.error))
 624                     .setMessage(getString(R.string.downloadFailed, R.string.downloadManagerQueryFailed))
 625                     .setNeutralButton("Close", null).show();
 626             return;
 627         }
 628
 629         while (cursor.moveToNext()) {
 630             if (downloadUrl.equals(cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_URI))))
 631                 break;
 632         }
 633         if (!cursor.isAfterLast()) {
 634             downloadManager.remove(cursor.getLong(cursor.getColumnIndex(DownloadManager.COLUMN_ID)));
 635             downloadButton
 636                     .setText(getString(
 637                             R.string.downloadButton,
 638                             bytes / 1024.0 / 1024.0));
 639             cursor.close();
 640             return;
 641         }
 642         cursor.close();
 643         Request request = new Request(
 644                 Uri.parse(downloadUrl));
 645         try {
 646             final String destFile = new File(new URL(downloadUrl).getFile())
 647                     .getName();
 648             Log.d(LOG, "Downloading to: " + destFile);
 649
 650             try {
 651                 request.setDestinationInExternalFilesDir(getApplicationContext(), null, destFile);
 652             } catch (IllegalStateException e) {
 653                 request.setDestinationUri(Uri.fromFile(new File(Environment
 654                         .getExternalStorageDirectory(), destFile)));
 655             }
 656         } catch (MalformedURLException e) {
 657             throw new RuntimeException(e);
 658         }
 659         downloadManager.enqueue(request);
 660         downloadButton.setText("X");
 661     }
 662
 663 }