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.Manifest;
  18 import android.app.AlertDialog;
  19 import android.app.DownloadManager;
  20 import android.app.DownloadManager.Request;
  21 import android.content.BroadcastReceiver;
  22 import android.content.ContentResolver;
  23 import android.content.Context;
  24 import android.content.Intent;
  25 import android.content.IntentFilter;
  26 import android.content.SharedPreferences;
  27 import android.content.SharedPreferences.Editor;
  28 import android.content.pm.PackageManager;
  29 import android.database.Cursor;
  30 import android.net.Uri;
  31 import android.os.Bundle;
  32 import android.os.Environment;
  33 import android.os.Handler;
  34 import android.preference.PreferenceManager;
  35 import android.provider.Settings;
  36 import android.support.v4.app.ActivityCompat;
  37 import android.support.v4.content.ContextCompat;
  38 import android.support.v4.view.MenuItemCompat;
  39 import android.support.v7.app.ActionBar;
  40 import android.support.v7.app.ActionBarActivity;
  41 import android.support.v7.widget.SearchView;
  42 import android.support.v7.widget.SearchView.OnQueryTextListener;
  43 import android.support.v7.widget.Toolbar;
  44 import android.text.InputType;
  45 import android.util.Log;
  46 import android.util.TypedValue;
  47 import android.view.ContextMenu;
  48 import android.view.ContextMenu.ContextMenuInfo;
  49 import android.view.LayoutInflater;
  50 import android.view.Menu;
  51 import android.view.MenuItem;
  52 import android.view.View;
  53 import android.view.View.OnClickListener;
  54 import android.view.ViewGroup;
  55 import android.view.inputmethod.EditorInfo;
  56 import android.view.inputmethod.InputMethodManager;
  57 import android.widget.AdapterView.AdapterContextMenuInfo;
  58 import android.widget.BaseAdapter;
  59 import android.widget.Button;
  60 import android.widget.CompoundButton;
  61 import android.widget.CompoundButton.OnCheckedChangeListener;
  62 import android.widget.FrameLayout;
  63 import android.widget.LinearLayout;
  64 import android.widget.ListAdapter;
  65 import android.widget.ListView;
  66 import android.widget.TextView;
  67 import android.widget.Toast;
  68 import android.widget.ToggleButton;
  69
  70 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  71 import com.hughes.android.util.IntentLauncher;
  72
  73 import java.io.BufferedInputStream;
  74 import java.io.File;
  75 import java.io.FileInputStream;
  76 import java.io.FileOutputStream;
  77 import java.io.IOException;
  78 import java.io.InputStream;
  79 import java.io.OutputStream;
  80 import java.net.MalformedURLException;
  81 import java.net.URL;
  82 import java.nio.ByteBuffer;
  83 import java.nio.channels.FileChannel;
  84 import java.util.Collections;
  85 import java.util.HashSet;
  86 import java.util.List;
  87 import java.util.Set;
  88 import java.util.zip.ZipEntry;
  89 import java.util.zip.ZipFile;
  90 import java.util.zip.ZipInputStream;
  91
  92 // Right-click:
  93 //  Delete, move to top.
  94
  95 public class DictionaryManagerActivity extends ActionBarActivity {
  96
  97     static final String LOG = "QuickDic";
  98     static boolean blockAutoLaunch = false;
  99
 100     private ListView listView;
 101     private ListView getListView() {
 102         if (listView == null) {
 103             listView = (ListView)findViewById(android.R.id.list);
 104         }
 105         return listView;
 106     }
 107     private void setListAdapter(ListAdapter adapter) {
 108         getListView().setAdapter(adapter);
 109     }
 110     private ListAdapter getListAdapter() {
 111         return getListView().getAdapter();
 112     }
 113
 114     // For DownloadManager bug workaround
 115     private Set<Long> finishedDownloadIds = new HashSet<Long>();
 116
 117     DictionaryApplication application;
 118
 119     SearchView filterSearchView;
 120     ToggleButton showDownloadable;
 121
 122     LinearLayout dictionariesOnDeviceHeaderRow;
 123     LinearLayout downloadableDictionariesHeaderRow;
 124
 125     Handler uiHandler;
 126
 127     Runnable dictionaryUpdater = new Runnable() {
 128         @Override
 129         public void run() {
 130             if (uiHandler == null) {
 131                 return;
 132             }
 133             uiHandler.post(new Runnable() {
 134                 @Override
 135                 public void run() {
 136                     setMyListAdapater();
 137                 }
 138             });
 139         }
 140     };
 141
 142     final BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
 143         @Override
 144         public synchronized void onReceive(Context context, Intent intent) {
 145             final String action = intent.getAction();
 146
 147             if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {
 148                 final long downloadId = intent.getLongExtra(
 149                                             DownloadManager.EXTRA_DOWNLOAD_ID, 0);
 150                 if (finishedDownloadIds.contains(downloadId)) return; // ignore double notifications
 151                 final DownloadManager.Query query = new DownloadManager.Query();
 152                 query.setFilterById(downloadId);
 153                 final DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 154                 final Cursor cursor = downloadManager.query(query);
 155
 156                 if (cursor == null || !cursor.moveToFirst()) {
 157                     Log.e(LOG, "Couldn't find download.");
 158                     return;
 159                 }
 160
 161                 final String dest = cursor
 162                                     .getString(cursor.getColumnIndex(DownloadManager.COLUMN_LOCAL_URI));
 163                 final int status = cursor
 164                                    .getInt(cursor
 165                                            .getColumnIndex(DownloadManager.COLUMN_STATUS));
 166                 if (DownloadManager.STATUS_SUCCESSFUL != status) {
 167                     final int reason = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_REASON));
 168                     Log.w(LOG,
 169                           "Download failed: status=" + status +
 170                           ", reason=" + reason);
 171                     String msg = Integer.toString(reason);
 172                     switch (reason) {
 173                     case DownloadManager.ERROR_FILE_ALREADY_EXISTS:
 174                         msg = "File exists";
 175                         break;
 176                     case DownloadManager.ERROR_FILE_ERROR:
 177                         msg = "File error";
 178                         break;
 179                     case DownloadManager.ERROR_INSUFFICIENT_SPACE:
 180                         msg = "Not enough space";
 181                         break;
 182                     }
 183                     new AlertDialog.Builder(context).setTitle(getString(R.string.error)).setMessage(getString(R.string.downloadFailed, msg)).setNeutralButton("Close", null).show();
 184                     return;
 185                 }
 186
 187                 Log.w(LOG, "Download finished: " + dest + " Id: " + downloadId);
 188                 Toast.makeText(context, getString(R.string.unzippingDictionary, dest),
 189                                Toast.LENGTH_LONG).show();
 190
 191
 192                 final Uri zipUri = Uri.parse(dest);
 193                 File localZipFile = null;
 194                 InputStream zipFileStream = null;
 195                 ZipInputStream zipFile = null;
 196                 FileOutputStream zipOut = null;
 197                 try {
 198                     if (zipUri.getScheme().equals("content")) {
 199                         zipFileStream = context.getContentResolver().openInputStream(zipUri);
 200                         localZipFile = null;
 201                     } else {
 202                         localZipFile = new File(zipUri.getPath());
 203                         zipFileStream = new FileInputStream(localZipFile);
 204                     }
 205                     zipFile = new ZipInputStream(new BufferedInputStream(zipFileStream));
 206                     final ZipEntry zipEntry = zipFile.getNextEntry();
 207                     Log.d(LOG, "Unzipping entry: " + zipEntry.getName());
 208                     File targetFile = new File(application.getDictDir(), zipEntry.getName());
 209                     if (targetFile.exists()) {
 210                         targetFile.renameTo(new File(targetFile.getAbsolutePath().replace(".quickdic", ".bak.quickdic")));
 211                         targetFile = new File(application.getDictDir(), zipEntry.getName());
 212                     }
 213                     zipOut = new FileOutputStream(targetFile);
 214                     copyStream(zipFile, zipOut);
 215                     application.backgroundUpdateDictionaries(dictionaryUpdater);
 216                     Toast.makeText(context, getString(R.string.installationFinished, dest),
 217                                    Toast.LENGTH_LONG).show();
 218                     finishedDownloadIds.add(downloadId);
 219                     Log.w(LOG, "Unzipping finished: " + dest + " Id: " + downloadId);
 220                 } catch (Exception e) {
 221                     String msg = getString(R.string.unzippingFailed, dest);
 222                     File dir = application.getDictDir();
 223                     if (!dir.canWrite() || !application.checkFileCreate(dir)) {
 224                         msg = getString(R.string.notWritable, dir.getAbsolutePath());
 225                     }
 226                     new AlertDialog.Builder(context).setTitle(getString(R.string.error)).setMessage(msg).setNeutralButton("Close", null).show();
 227                     Log.e(LOG, "Failed to unzip.", e);
 228                 } finally {
 229                     try {
 230                         if (zipOut != null) zipOut.close();
 231                     } catch (IOException e) {}
 232                     try {
 233                         if (zipFile != null) zipFile.close();
 234                     } catch (IOException e) {}
 235                     try {
 236                         if (zipFileStream != null) zipFileStream.close();
 237                     } catch (IOException e) {}
 238                     if (localZipFile != null) localZipFile.delete();
 239                 }
 240             }
 241         }
 242     };
 243
 244     public static Intent getLaunchIntent(Context c) {
 245         final Intent intent = new Intent(c, DictionaryManagerActivity.class);
 246         intent.putExtra(C.CAN_AUTO_LAUNCH_DICT, false);
 247         return intent;
 248     }
 249
 250     public void readableCheckAndError(boolean requestPermission) {
 251         final File dictDir = application.getDictDir();
 252         if (dictDir.canRead() && dictDir.canExecute()) return;
 253         blockAutoLaunch = true;
 254         if (requestPermission &&
 255                 ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
 256             ActivityCompat.requestPermissions(this,
 257                                               new String[] {Manifest.permission.READ_EXTERNAL_STORAGE,
 258                                                       Manifest.permission.WRITE_EXTERNAL_STORAGE
 259                                                            }, 0);
 260             return;
 261         }
 262         blockAutoLaunch = true;
 263
 264         AlertDialog.Builder builder = new AlertDialog.Builder(getListView().getContext());
 265         builder.setTitle(getString(R.string.error));
 266         builder.setMessage(getString(
 267                                R.string.unableToReadDictionaryDir,
 268                                dictDir.getAbsolutePath(),
 269                                Environment.getExternalStorageDirectory()));
 270         builder.setNeutralButton("Close", null);
 271         builder.create().show();
 272     }
 273
 274     @Override
 275     public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
 276         readableCheckAndError(false);
 277
 278         application.backgroundUpdateDictionaries(dictionaryUpdater);
 279
 280         setMyListAdapater();
 281     }
 282
 283     @Override
 284     public void onCreate(Bundle savedInstanceState) {
 285         // This must be first, otherwise the actiona bar doesn't get
 286         // styled properly.
 287         setTheme(((DictionaryApplication) getApplication()).getSelectedTheme().themeId);
 288
 289         super.onCreate(savedInstanceState);
 290         Log.d(LOG, "onCreate:" + this);
 291
 292         application = (DictionaryApplication) getApplication();
 293
 294         blockAutoLaunch = false;
 295
 296         // UI init.
 297         setContentView(R.layout.dictionary_manager_activity);
 298
 299         dictionariesOnDeviceHeaderRow = (LinearLayout) LayoutInflater.from(
 300                                             getListView().getContext()).inflate(
 301                                             R.layout.dictionary_manager_header_row_on_device, getListView(), false);
 302
 303         downloadableDictionariesHeaderRow = (LinearLayout) LayoutInflater.from(
 304                                                 getListView().getContext()).inflate(
 305                                                 R.layout.dictionary_manager_header_row_downloadable, getListView(), false);
 306
 307         showDownloadable = (ToggleButton) downloadableDictionariesHeaderRow
 308                            .findViewById(R.id.hideDownloadable);
 309         showDownloadable.setOnCheckedChangeListener(new OnCheckedChangeListener() {
 310             @Override
 311             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 312                 onShowDownloadableChanged();
 313             }
 314         });
 315
 316         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 317         final String thanksForUpdatingLatestVersion = getString(R.string.thanksForUpdatingVersion);
 318         if (!prefs.getString(C.THANKS_FOR_UPDATING_VERSION, "").equals(
 319                     thanksForUpdatingLatestVersion)) {
 320             blockAutoLaunch = true;
 321             startActivity(HtmlDisplayActivity.getWhatsNewLaunchIntent(getApplicationContext()));
 322             prefs.edit().putString(C.THANKS_FOR_UPDATING_VERSION, thanksForUpdatingLatestVersion)
 323             .commit();
 324         }
 325
 326         registerReceiver(broadcastReceiver, new IntentFilter(
 327                              DownloadManager.ACTION_DOWNLOAD_COMPLETE));
 328
 329         setMyListAdapater();
 330         registerForContextMenu(getListView());
 331         getListView().setItemsCanFocus(true);
 332
 333         readableCheckAndError(true);
 334
 335         onCreateSetupActionBar();
 336     }
 337
 338     private void onCreateSetupActionBar() {
 339         ActionBar actionBar = getSupportActionBar();
 340         actionBar.setDisplayShowTitleEnabled(false);
 341         actionBar.setDisplayShowHomeEnabled(false);
 342         actionBar.setDisplayHomeAsUpEnabled(false);
 343
 344         filterSearchView = new SearchView(getSupportActionBar().getThemedContext());
 345         filterSearchView.setIconifiedByDefault(false);
 346         // filterSearchView.setIconified(false); // puts the magnifying glass in
 347         // the
 348         // wrong place.
 349         filterSearchView.setQueryHint(getString(R.string.searchText));
 350         filterSearchView.setSubmitButtonEnabled(false);
 351         FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT,
 352                 FrameLayout.LayoutParams.WRAP_CONTENT);
 353         filterSearchView.setLayoutParams(lp);
 354         filterSearchView.setInputType(InputType.TYPE_CLASS_TEXT);
 355         filterSearchView.setImeOptions(
 356             EditorInfo.IME_ACTION_DONE |
 357             EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 358             // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 359             // 11
 360             EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 361
 362         filterSearchView.setOnQueryTextListener(new OnQueryTextListener() {
 363             @Override
 364             public boolean onQueryTextSubmit(String query) {
 365                 filterSearchView.clearFocus();
 366                 return false;
 367             }
 368
 369             @Override
 370             public boolean onQueryTextChange(String filterText) {
 371                 setMyListAdapater();
 372                 return true;
 373             }
 374         });
 375         filterSearchView.setFocusable(true);
 376
 377         actionBar.setCustomView(filterSearchView);
 378         actionBar.setDisplayShowCustomEnabled(true);
 379
 380         // Avoid wasting space on large left inset
 381         Toolbar tb = (Toolbar)filterSearchView.getParent();
 382         tb.setContentInsetsRelative(0, 0);
 383     }
 384
 385     @Override
 386     public void onDestroy() {
 387         super.onDestroy();
 388         unregisterReceiver(broadcastReceiver);
 389     }
 390
 391     private static void copyStream(final InputStream ins, final FileOutputStream outs)
 392     throws IOException {
 393         ByteBuffer buf = ByteBuffer.allocateDirect(1024 * 64);
 394         FileChannel out = outs.getChannel();
 395         int bytesRead;
 396         int pos = 0;
 397         final byte[] bytes = new byte[1024 * 64];
 398         do {
 399             bytesRead = ins.read(bytes, pos, bytes.length - pos);
 400             if (bytesRead != -1) pos += bytesRead;
 401             if (bytesRead == -1 ? pos != 0 : 2*pos >= bytes.length) {
 402                 buf.put(bytes, 0, pos);
 403                 pos = 0;
 404                 buf.flip();
 405                 while (buf.hasRemaining()) out.write(buf);
 406                 buf.clear();
 407             }
 408         } while (bytesRead != -1);
 409     }
 410
 411     @Override
 412     protected void onStart() {
 413         super.onStart();
 414         uiHandler = new Handler();
 415     }
 416
 417     @Override
 418     protected void onStop() {
 419         super.onStop();
 420         uiHandler = null;
 421     }
 422
 423     @Override
 424     protected void onResume() {
 425         super.onResume();
 426
 427         if (PreferenceActivity.prefsMightHaveChanged) {
 428             PreferenceActivity.prefsMightHaveChanged = false;
 429             finish();
 430             startActivity(getIntent());
 431         }
 432
 433         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 434         showDownloadable.setChecked(prefs.getBoolean(C.SHOW_DOWNLOADABLE, true));
 435
 436         if (!blockAutoLaunch &&
 437                 getIntent().getBooleanExtra(C.CAN_AUTO_LAUNCH_DICT, true) &&
 438                 prefs.contains(C.DICT_FILE) &&
 439                 prefs.contains(C.INDEX_SHORT_NAME)) {
 440             Log.d(LOG, "Skipping DictionaryManager, going straight to dictionary.");
 441             startActivity(DictionaryActivity.getLaunchIntent(getApplicationContext(),
 442                           new File(prefs.getString(C.DICT_FILE, "")),
 443                           prefs.getString(C.INDEX_SHORT_NAME, ""),
 444                           prefs.getString(C.SEARCH_TOKEN, "")));
 445             finish();
 446             return;
 447         }
 448
 449         // Remove the active dictionary from the prefs so we won't autolaunch
 450         // next time.
 451         final Editor editor = prefs.edit();
 452         editor.remove(C.DICT_FILE);
 453         editor.remove(C.INDEX_SHORT_NAME);
 454         editor.remove(C.SEARCH_TOKEN);
 455         editor.commit();
 456
 457         application.backgroundUpdateDictionaries(dictionaryUpdater);
 458
 459         setMyListAdapater();
 460     }
 461
 462     @Override
 463     public boolean onCreateOptionsMenu(final Menu menu) {
 464         if ("true".equals(Settings.System.getString(getContentResolver(), "firebase.test.lab")))
 465         {
 466             return false; // testing the menu is not very interesting
 467         }
 468         final MenuItem sort = menu.add(getString(R.string.sortDicts));
 469         MenuItemCompat.setShowAsAction(sort, MenuItem.SHOW_AS_ACTION_NEVER);
 470         sort.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
 471             public boolean onMenuItemClick(final MenuItem menuItem) {
 472                 application.sortDictionaries();
 473                 setMyListAdapater();
 474                 return true;
 475             }
 476         });
 477
 478         application.onCreateGlobalOptionsMenu(this, menu);
 479         return true;
 480     }
 481
 482     @Override
 483     public void onCreateContextMenu(final ContextMenu menu, final View view,
 484                                     final ContextMenuInfo menuInfo) {
 485         super.onCreateContextMenu(menu, view, menuInfo);
 486         Log.d(LOG, "onCreateContextMenu, " + menuInfo);
 487
 488         final AdapterContextMenuInfo adapterContextMenuInfo =
 489             (AdapterContextMenuInfo) menuInfo;
 490         final int position = adapterContextMenuInfo.position;
 491         final MyListAdapter.Row row = (MyListAdapter.Row) getListAdapter().getItem(position);
 492
 493         if (row.dictionaryInfo == null) {
 494             return;
 495         }
 496
 497         if (position > 0 && row.onDevice) {
 498             final android.view.MenuItem moveToTopMenuItem =
 499                 menu.add(R.string.moveToTop);
 500             moveToTopMenuItem.setOnMenuItemClickListener(new
 501             android.view.MenuItem.OnMenuItemClickListener() {
 502                 @Override
 503                 public boolean onMenuItemClick(android.view.MenuItem item) {
 504                     application.moveDictionaryToTop(row.dictionaryInfo);
 505                     setMyListAdapater();
 506                     return true;
 507                 }
 508             });
 509         }
 510
 511         if (row.onDevice) {
 512             final android.view.MenuItem deleteMenuItem = menu.add(R.string.deleteDictionary);
 513             deleteMenuItem
 514             .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 515                 @Override
 516                 public boolean onMenuItemClick(android.view.MenuItem item) {
 517                     application.deleteDictionary(row.dictionaryInfo);
 518                     setMyListAdapater();
 519                     return true;
 520                 }
 521             });
 522         }
 523     }
 524
 525     private void onShowDownloadableChanged() {
 526         setMyListAdapater();
 527         Editor prefs = PreferenceManager.getDefaultSharedPreferences(this).edit();
 528         prefs.putBoolean(C.SHOW_DOWNLOADABLE, showDownloadable.isChecked());
 529         prefs.commit();
 530     }
 531
 532     class MyListAdapter extends BaseAdapter {
 533
 534         List<DictionaryInfo> dictionariesOnDevice;
 535         List<DictionaryInfo> downloadableDictionaries;
 536
 537         class Row {
 538             DictionaryInfo dictionaryInfo;
 539             boolean onDevice;
 540
 541             private Row(DictionaryInfo dictionaryInfo, boolean onDevice) {
 542                 this.dictionaryInfo = dictionaryInfo;
 543                 this.onDevice = onDevice;
 544             }
 545         }
 546
 547         private MyListAdapter(final String[] filters) {
 548             dictionariesOnDevice = application.getDictionariesOnDevice(filters);
 549             if (showDownloadable.isChecked()) {
 550                 downloadableDictionaries = application.getDownloadableDictionaries(filters);
 551             } else {
 552                 downloadableDictionaries = Collections.emptyList();
 553             }
 554         }
 555
 556         @Override
 557         public int getCount() {
 558             return 2 + dictionariesOnDevice.size() + downloadableDictionaries.size();
 559         }
 560
 561         @Override
 562         public Row getItem(int position) {
 563             if (position == 0) {
 564                 return new Row(null, true);
 565             }
 566             position -= 1;
 567
 568             if (position < dictionariesOnDevice.size()) {
 569                 return new Row(dictionariesOnDevice.get(position), true);
 570             }
 571             position -= dictionariesOnDevice.size();
 572
 573             if (position == 0) {
 574                 return new Row(null, false);
 575             }
 576             position -= 1;
 577
 578             assert position < downloadableDictionaries.size();
 579             return new Row(downloadableDictionaries.get(position), false);
 580         }
 581
 582         @Override
 583         public long getItemId(int position) {
 584             return position;
 585         }
 586
 587         @Override
 588         public View getView(int position, View convertView, ViewGroup parent) {
 589             if (convertView instanceof LinearLayout &&
 590                     convertView != dictionariesOnDeviceHeaderRow &&
 591                     convertView != downloadableDictionariesHeaderRow) {
 592                 /*
 593                  * This is done to try to avoid leaking memory that used to
 594                  * happen on Android 4.0.3
 595                  */
 596                 ((LinearLayout) convertView).removeAllViews();
 597             }
 598
 599             final Row row = getItem(position);
 600
 601             if (row.onDevice) {
 602                 if (row.dictionaryInfo == null) {
 603                     return dictionariesOnDeviceHeaderRow;
 604                 }
 605                 return createDictionaryRow(row.dictionaryInfo, parent, true);
 606             }
 607
 608             if (row.dictionaryInfo == null) {
 609                 return downloadableDictionariesHeaderRow;
 610             }
 611             return createDictionaryRow(row.dictionaryInfo, parent, false);
 612         }
 613
 614     }
 615
 616     private void setMyListAdapater() {
 617         final String filter = filterSearchView == null ? "" : filterSearchView.getQuery()
 618                               .toString();
 619         final String[] filters = filter.trim().toLowerCase().split("(\\s|-)+");
 620         setListAdapter(new MyListAdapter(filters));
 621     }
 622
 623     private View createDictionaryRow(final DictionaryInfo dictionaryInfo,
 624                                      final ViewGroup parent, boolean canLaunch) {
 625
 626         View row = LayoutInflater.from(parent.getContext()).inflate(
 627                        R.layout.dictionary_manager_row, parent, false);
 628         final TextView name = (TextView) row.findViewById(R.id.dictionaryName);
 629         final TextView details = (TextView) row.findViewById(R.id.dictionaryDetails);
 630         name.setText(application.getDictionaryName(dictionaryInfo.uncompressedFilename));
 631
 632         final boolean updateAvailable = application.updateAvailable(dictionaryInfo);
 633         final Button downloadButton = (Button) row.findViewById(R.id.downloadButton);
 634         final DictionaryInfo downloadable = application.getDownloadable(dictionaryInfo.uncompressedFilename);
 635         boolean broken = false;
 636         if (!dictionaryInfo.isValid()) {
 637             broken = true;
 638             canLaunch = false;
 639         }
 640         if (downloadable != null && (!canLaunch || updateAvailable)) {
 641             downloadButton
 642             .setText(getString(
 643                          R.string.downloadButton,
 644                          downloadable.zipBytes / 1024.0 / 1024.0));
 645             downloadButton.setMinWidth(application.languageButtonPixels * 3 / 2);
 646             downloadButton.setOnClickListener(new OnClickListener() {
 647                 @Override
 648                 public void onClick(View arg0) {
 649                     downloadDictionary(downloadable.downloadUrl, downloadable.zipBytes, downloadButton);
 650                 }
 651             });
 652         } else {
 653             downloadButton.setVisibility(View.INVISIBLE);
 654         }
 655
 656         LinearLayout buttons = (LinearLayout) row.findViewById(R.id.dictionaryLauncherButtons);
 657         final List<IndexInfo> sortedIndexInfos = application
 658                 .sortedIndexInfos(dictionaryInfo.indexInfos);
 659         final StringBuilder builder = new StringBuilder();
 660         if (updateAvailable) {
 661             builder.append(getString(R.string.updateAvailable));
 662         }
 663         for (IndexInfo indexInfo : sortedIndexInfos) {
 664             final View button = application.createButton(buttons.getContext(), dictionaryInfo,
 665                                 indexInfo);
 666             buttons.addView(button);
 667
 668             if (canLaunch) {
 669                 button.setOnClickListener(
 670                     new IntentLauncher(buttons.getContext(),
 671                                        DictionaryActivity.getLaunchIntent(getApplicationContext(),
 672                                                application.getPath(dictionaryInfo.uncompressedFilename),
 673                                                indexInfo.shortName, "")));
 674
 675             } else {
 676                 button.setEnabled(false);
 677                 button.setFocusable(false);
 678             }
 679             if (builder.length() != 0) {
 680                 builder.append("; ");
 681             }
 682             builder.append(getString(R.string.indexInfo, indexInfo.shortName,
 683                                      indexInfo.mainTokenCount));
 684         }
 685         builder.append("; ");
 686         builder.append(getString(R.string.downloadButton, dictionaryInfo.uncompressedBytes / 1024.0 / 1024.0));
 687         if (broken) {
 688             name.setText("Broken: " + application.getDictionaryName(dictionaryInfo.uncompressedFilename));
 689             builder.append("; Cannot be used, redownload, check hardware/file system");
 690             // Allow deleting, but cannot open
 691             row.setLongClickable(true);
 692         }
 693         details.setText(builder.toString());
 694
 695         if (canLaunch) {
 696             row.setClickable(true);
 697             row.setOnClickListener(new IntentLauncher(parent.getContext(),
 698                                    DictionaryActivity.getLaunchIntent(getApplicationContext(),
 699                                            application.getPath(dictionaryInfo.uncompressedFilename),
 700                                            dictionaryInfo.indexInfos.get(0).shortName, "")));
 701             // do not setFocusable, for keyboard navigation
 702             // offering only the index buttons is better.
 703             row.setLongClickable(true);
 704         }
 705         row.setBackgroundResource(android.R.drawable.menuitem_background);
 706
 707         return row;
 708     }
 709
 710     private synchronized void downloadDictionary(final String downloadUrl, long bytes, Button downloadButton) {
 711         String destFile;
 712         try {
 713             destFile = new File(new URL(downloadUrl).getPath()).getName();
 714         } catch (MalformedURLException e) {
 715             throw new RuntimeException("Invalid download URL!", e);
 716         }
 717         DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 718         final DownloadManager.Query query = new DownloadManager.Query();
 719         query.setFilterByStatus(DownloadManager.STATUS_PAUSED | DownloadManager.STATUS_PENDING | DownloadManager.STATUS_RUNNING);
 720         final Cursor cursor = downloadManager.query(query);
 721
 722         // Due to a bug, cursor is null instead of empty when
 723         // the download manager is disabled.
 724         if (cursor == null) {
 725             new AlertDialog.Builder(DictionaryManagerActivity.this).setTitle(getString(R.string.error))
 726             .setMessage(getString(R.string.downloadFailed, R.string.downloadManagerQueryFailed))
 727             .setNeutralButton("Close", null).show();
 728             return;
 729         }
 730
 731         while (cursor.moveToNext()) {
 732             if (downloadUrl.equals(cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_URI))))
 733                 break;
 734             if (destFile.equals(cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_TITLE))))
 735                 break;
 736         }
 737         if (!cursor.isAfterLast()) {
 738             downloadManager.remove(cursor.getLong(cursor.getColumnIndex(DownloadManager.COLUMN_ID)));
 739             downloadButton
 740             .setText(getString(
 741                          R.string.downloadButton,
 742                          bytes / 1024.0 / 1024.0));
 743             cursor.close();
 744             return;
 745         }
 746         cursor.close();
 747         Request request = new Request(
 748             Uri.parse(downloadUrl));
 749
 750         Log.d(LOG, "Downloading to: " + destFile);
 751         request.setTitle(destFile);
 752
 753         File destFilePath = new File(application.getDictDir(), destFile);
 754         destFilePath.delete();
 755         try {
 756             request.setDestinationUri(Uri.fromFile(destFilePath));
 757         } catch (Exception e) {
 758         }
 759
 760         try {
 761             downloadManager.enqueue(request);
 762         } catch (SecurityException e) {
 763             request = new Request(Uri.parse(downloadUrl));
 764             request.setTitle(destFile);
 765             downloadManager.enqueue(request);
 766         }
 767         Log.w(LOG, "Download started: " + destFile);
 768         downloadButton.setText("X");
 769     }
 770
 771 }