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.support.v4.app.ActivityCompat;
  36 import android.support.v4.content.ContextCompat;
  37 import android.support.v4.view.MenuItemCompat;
  38 import android.support.v7.app.ActionBar;
  39 import android.support.v7.app.ActionBarActivity;
  40 import android.support.v7.widget.SearchView;
  41 import android.support.v7.widget.SearchView.OnQueryTextListener;
  42 import android.support.v7.widget.Toolbar;
  43 import android.text.InputType;
  44 import android.util.Log;
  45 import android.util.TypedValue;
  46 import android.view.ContextMenu;
  47 import android.view.ContextMenu.ContextMenuInfo;
  48 import android.view.LayoutInflater;
  49 import android.view.Menu;
  50 import android.view.MenuItem;
  51 import android.view.View;
  52 import android.view.View.OnClickListener;
  53 import android.view.ViewGroup;
  54 import android.view.inputmethod.EditorInfo;
  55 import android.view.inputmethod.InputMethodManager;
  56 import android.widget.AdapterView.AdapterContextMenuInfo;
  57 import android.widget.BaseAdapter;
  58 import android.widget.Button;
  59 import android.widget.CompoundButton;
  60 import android.widget.CompoundButton.OnCheckedChangeListener;
  61 import android.widget.FrameLayout;
  62 import android.widget.LinearLayout;
  63 import android.widget.ListAdapter;
  64 import android.widget.ListView;
  65 import android.widget.TextView;
  66 import android.widget.Toast;
  67 import android.widget.ToggleButton;
  68
  69 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  70 import com.hughes.android.util.IntentLauncher;
  71
  72 import java.io.File;
  73 import java.io.FileInputStream;
  74 import java.io.FileOutputStream;
  75 import java.io.IOException;
  76 import java.io.InputStream;
  77 import java.io.OutputStream;
  78 import java.net.MalformedURLException;
  79 import java.net.URL;
  80 import java.util.Collections;
  81 import java.util.HashSet;
  82 import java.util.List;
  83 import java.util.Set;
  84 import java.util.zip.ZipEntry;
  85 import java.util.zip.ZipFile;
  86 import java.util.zip.ZipInputStream;
  87
  88 // Right-click:
  89 //  Delete, move to top.
  90
  91 public class DictionaryManagerActivity extends ActionBarActivity {
  92
  93     static final String LOG = "QuickDic";
  94     static boolean blockAutoLaunch = false;
  95
  96     private ListView listView;
  97     private ListView getListView() {
  98         if (listView == null) {
  99             listView = (ListView)findViewById(android.R.id.list);
 100         }
 101         return listView;
 102     }
 103     private void setListAdapter(ListAdapter adapter) {
 104         getListView().setAdapter(adapter);
 105     }
 106     private ListAdapter getListAdapter() {
 107         return getListView().getAdapter();
 108     }
 109
 110     // For DownloadManager bug workaround
 111     private Set<Long> finishedDownloadIds = new HashSet<Long>();
 112
 113     DictionaryApplication application;
 114
 115     SearchView filterSearchView;
 116     ToggleButton showDownloadable;
 117
 118     LinearLayout dictionariesOnDeviceHeaderRow;
 119     LinearLayout downloadableDictionariesHeaderRow;
 120
 121     Handler uiHandler;
 122
 123     Runnable dictionaryUpdater = new Runnable() {
 124         @Override
 125         public void run() {
 126             if (uiHandler == null) {
 127                 return;
 128             }
 129             uiHandler.post(new Runnable() {
 130                 @Override
 131                 public void run() {
 132                     setMyListAdapater();
 133                 }
 134             });
 135         }
 136     };
 137
 138     final BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
 139         @Override
 140         public synchronized void onReceive(Context context, Intent intent) {
 141             final String action = intent.getAction();
 142
 143             if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {
 144                 final long downloadId = intent.getLongExtra(
 145                                             DownloadManager.EXTRA_DOWNLOAD_ID, 0);
 146                 if (finishedDownloadIds.contains(downloadId)) return; // ignore double notifications
 147                 final DownloadManager.Query query = new DownloadManager.Query();
 148                 query.setFilterById(downloadId);
 149                 final DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 150                 final Cursor cursor = downloadManager.query(query);
 151
 152                 if (cursor == null || !cursor.moveToFirst()) {
 153                     Log.e(LOG, "Couldn't find download.");
 154                     return;
 155                 }
 156
 157                 final String dest = cursor
 158                                     .getString(cursor.getColumnIndex(DownloadManager.COLUMN_LOCAL_URI));
 159                 final int status = cursor
 160                                    .getInt(cursor
 161                                            .getColumnIndex(DownloadManager.COLUMN_STATUS));
 162                 if (DownloadManager.STATUS_SUCCESSFUL != status) {
 163                     final int reason = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_REASON));
 164                     Log.w(LOG,
 165                           "Download failed: status=" + status +
 166                           ", reason=" + reason);
 167                     String msg = Integer.toString(reason);
 168                     switch (reason) {
 169                     case DownloadManager.ERROR_FILE_ALREADY_EXISTS:
 170                         msg = "File exists";
 171                         break;
 172                     case DownloadManager.ERROR_FILE_ERROR:
 173                         msg = "File error";
 174                         break;
 175                     case DownloadManager.ERROR_INSUFFICIENT_SPACE:
 176                         msg = "Not enough space";
 177                         break;
 178                     }
 179                     new AlertDialog.Builder(context).setTitle(getString(R.string.error)).setMessage(getString(R.string.downloadFailed, msg)).setNeutralButton("Close", null).show();
 180                     return;
 181                 }
 182
 183                 Log.w(LOG, "Download finished: " + dest + " Id: " + downloadId);
 184                 Toast.makeText(context, getString(R.string.unzippingDictionary, dest),
 185                                Toast.LENGTH_LONG).show();
 186
 187
 188                 final Uri zipUri = Uri.parse(dest);
 189                 File localZipFile = null;
 190                 InputStream zipFileStream = null;
 191                 ZipInputStream zipFile = null;
 192                 OutputStream zipOut = null;
 193                 try {
 194                     if (zipUri.getScheme().equals("content")) {
 195                         zipFileStream = context.getContentResolver().openInputStream(zipUri);
 196                         localZipFile = null;
 197                     } else {
 198                         localZipFile = new File(zipUri.getPath());
 199                         zipFileStream = new FileInputStream(localZipFile);
 200                     }
 201                     zipFile = new ZipInputStream(zipFileStream);
 202                     final ZipEntry zipEntry = zipFile.getNextEntry();
 203                     Log.d(LOG, "Unzipping entry: " + zipEntry.getName());
 204                     File targetFile = new File(application.getDictDir(), zipEntry.getName());
 205                     if (targetFile.exists()) {
 206                         targetFile.renameTo(new File(targetFile.getAbsolutePath().replace(".quickdic", ".bak.quickdic")));
 207                         targetFile = new File(application.getDictDir(), zipEntry.getName());
 208                     }
 209                     zipOut = new FileOutputStream(targetFile);
 210                     copyStream(zipFile, zipOut);
 211                     application.backgroundUpdateDictionaries(dictionaryUpdater);
 212                     Toast.makeText(context, getString(R.string.installationFinished, dest),
 213                                    Toast.LENGTH_LONG).show();
 214                     finishedDownloadIds.add(downloadId);
 215                     Log.w(LOG, "Unzipping finished: " + dest + " Id: " + downloadId);
 216                 } catch (Exception e) {
 217                     String msg = getString(R.string.unzippingFailed, dest);
 218                     File dir = application.getDictDir();
 219                     if (!dir.canWrite() || !application.checkFileCreate(dir)) {
 220                         msg = getString(R.string.notWritable, dir.getAbsolutePath());
 221                     }
 222                     new AlertDialog.Builder(context).setTitle(getString(R.string.error)).setMessage(msg).setNeutralButton("Close", null).show();
 223                     Log.e(LOG, "Failed to unzip.", e);
 224                 } finally {
 225                     try {
 226                         if (zipOut != null) zipOut.close();
 227                     } catch (IOException e) {}
 228                     try {
 229                         if (zipFile != null) zipFile.close();
 230                     } catch (IOException e) {}
 231                     try {
 232                         if (zipFileStream != null) zipFileStream.close();
 233                     } catch (IOException e) {}
 234                     if (localZipFile != null) localZipFile.delete();
 235                 }
 236             }
 237         }
 238     };
 239
 240     public static Intent getLaunchIntent(Context c) {
 241         final Intent intent = new Intent(c, DictionaryManagerActivity.class);
 242         intent.putExtra(C.CAN_AUTO_LAUNCH_DICT, false);
 243         return intent;
 244     }
 245
 246     public void readableCheckAndError(boolean requestPermission) {
 247         final File dictDir = application.getDictDir();
 248         if (dictDir.canRead() && dictDir.canExecute()) return;
 249         blockAutoLaunch = true;
 250         if (requestPermission &&
 251                 ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
 252             ActivityCompat.requestPermissions(this,
 253                                               new String[] {Manifest.permission.READ_EXTERNAL_STORAGE,
 254                                                       Manifest.permission.WRITE_EXTERNAL_STORAGE
 255                                                            }, 0);
 256             return;
 257         }
 258         blockAutoLaunch = true;
 259
 260         AlertDialog.Builder builder = new AlertDialog.Builder(getListView().getContext());
 261         builder.setTitle(getString(R.string.error));
 262         builder.setMessage(getString(
 263                                R.string.unableToReadDictionaryDir,
 264                                dictDir.getAbsolutePath(),
 265                                Environment.getExternalStorageDirectory()));
 266         builder.setNeutralButton("Close", null);
 267         builder.create().show();
 268     }
 269
 270     @Override
 271     public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
 272         readableCheckAndError(false);
 273
 274         application.backgroundUpdateDictionaries(dictionaryUpdater);
 275
 276         setMyListAdapater();
 277     }
 278
 279     @Override
 280     public void onCreate(Bundle savedInstanceState) {
 281         // This must be first, otherwise the actiona bar doesn't get
 282         // styled properly.
 283         setTheme(((DictionaryApplication) getApplication()).getSelectedTheme().themeId);
 284
 285         super.onCreate(savedInstanceState);
 286         Log.d(LOG, "onCreate:" + this);
 287
 288         application = (DictionaryApplication) getApplication();
 289
 290         blockAutoLaunch = false;
 291
 292         // UI init.
 293         setContentView(R.layout.dictionary_manager_activity);
 294
 295         dictionariesOnDeviceHeaderRow = (LinearLayout) LayoutInflater.from(
 296                                             getListView().getContext()).inflate(
 297                                             R.layout.dictionary_manager_header_row_on_device, getListView(), false);
 298
 299         downloadableDictionariesHeaderRow = (LinearLayout) LayoutInflater.from(
 300                                                 getListView().getContext()).inflate(
 301                                                 R.layout.dictionary_manager_header_row_downloadable, getListView(), false);
 302
 303         showDownloadable = (ToggleButton) downloadableDictionariesHeaderRow
 304                            .findViewById(R.id.hideDownloadable);
 305         showDownloadable.setOnCheckedChangeListener(new OnCheckedChangeListener() {
 306             @Override
 307             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 308                 onShowDownloadableChanged();
 309             }
 310         });
 311
 312         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 313         final String thanksForUpdatingLatestVersion = getString(R.string.thanksForUpdatingVersion);
 314         if (!prefs.getString(C.THANKS_FOR_UPDATING_VERSION, "").equals(
 315                     thanksForUpdatingLatestVersion)) {
 316             blockAutoLaunch = true;
 317             startActivity(HtmlDisplayActivity.getWhatsNewLaunchIntent(getApplicationContext()));
 318             prefs.edit().putString(C.THANKS_FOR_UPDATING_VERSION, thanksForUpdatingLatestVersion)
 319             .commit();
 320         }
 321
 322         registerReceiver(broadcastReceiver, new IntentFilter(
 323                              DownloadManager.ACTION_DOWNLOAD_COMPLETE));
 324
 325         setMyListAdapater();
 326         registerForContextMenu(getListView());
 327
 328         readableCheckAndError(true);
 329
 330         onCreateSetupActionBar();
 331     }
 332
 333     private void onCreateSetupActionBar() {
 334         ActionBar actionBar = getSupportActionBar();
 335         actionBar.setDisplayShowTitleEnabled(false);
 336         actionBar.setDisplayShowHomeEnabled(false);
 337         actionBar.setDisplayHomeAsUpEnabled(false);
 338
 339         filterSearchView = new SearchView(getSupportActionBar().getThemedContext());
 340         filterSearchView.setIconifiedByDefault(false);
 341         // filterSearchView.setIconified(false); // puts the magnifying glass in
 342         // the
 343         // wrong place.
 344         filterSearchView.setQueryHint(getString(R.string.searchText));
 345         filterSearchView.setSubmitButtonEnabled(false);
 346         FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT,
 347                 FrameLayout.LayoutParams.WRAP_CONTENT);
 348         filterSearchView.setLayoutParams(lp);
 349         filterSearchView.setInputType(InputType.TYPE_CLASS_TEXT);
 350         filterSearchView.setImeOptions(
 351             EditorInfo.IME_ACTION_DONE |
 352             EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 353             // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 354             // 11
 355             EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 356
 357         filterSearchView.setOnQueryTextListener(new OnQueryTextListener() {
 358             @Override
 359             public boolean onQueryTextSubmit(String query) {
 360                 filterSearchView.clearFocus();
 361                 return false;
 362             }
 363
 364             @Override
 365             public boolean onQueryTextChange(String filterText) {
 366                 setMyListAdapater();
 367                 return true;
 368             }
 369         });
 370         filterSearchView.setFocusable(true);
 371
 372         actionBar.setCustomView(filterSearchView);
 373         actionBar.setDisplayShowCustomEnabled(true);
 374
 375         // Avoid wasting space on large left inset
 376         Toolbar tb = (Toolbar)filterSearchView.getParent();
 377         tb.setContentInsetsRelative(0, 0);
 378     }
 379
 380     @Override
 381     public void onDestroy() {
 382         super.onDestroy();
 383         unregisterReceiver(broadcastReceiver);
 384     }
 385
 386     private static int copyStream(final InputStream in, final OutputStream out)
 387     throws IOException {
 388         int bytesRead;
 389         final byte[] bytes = new byte[1024 * 16];
 390         while ((bytesRead = in.read(bytes)) != -1) {
 391             out.write(bytes, 0, bytesRead);
 392         }
 393         in.close();
 394         out.close();
 395         return bytesRead;
 396     }
 397
 398     @Override
 399     protected void onStart() {
 400         super.onStart();
 401         uiHandler = new Handler();
 402     }
 403
 404     @Override
 405     protected void onStop() {
 406         super.onStop();
 407         uiHandler = null;
 408     }
 409
 410     @Override
 411     protected void onResume() {
 412         super.onResume();
 413
 414         if (PreferenceActivity.prefsMightHaveChanged) {
 415             PreferenceActivity.prefsMightHaveChanged = false;
 416             finish();
 417             startActivity(getIntent());
 418         }
 419
 420         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 421         showDownloadable.setChecked(prefs.getBoolean(C.SHOW_DOWNLOADABLE, true));
 422
 423         if (!blockAutoLaunch &&
 424                 getIntent().getBooleanExtra(C.CAN_AUTO_LAUNCH_DICT, true) &&
 425                 prefs.contains(C.DICT_FILE) &&
 426                 prefs.contains(C.INDEX_SHORT_NAME)) {
 427             Log.d(LOG, "Skipping DictionaryManager, going straight to dictionary.");
 428             startActivity(DictionaryActivity.getLaunchIntent(getApplicationContext(),
 429                           new File(prefs.getString(C.DICT_FILE, "")),
 430                           prefs.getString(C.INDEX_SHORT_NAME, ""),
 431                           prefs.getString(C.SEARCH_TOKEN, "")));
 432             finish();
 433             return;
 434         }
 435
 436         // Remove the active dictionary from the prefs so we won't autolaunch
 437         // next time.
 438         final Editor editor = prefs.edit();
 439         editor.remove(C.DICT_FILE);
 440         editor.remove(C.INDEX_SHORT_NAME);
 441         editor.remove(C.SEARCH_TOKEN);
 442         editor.commit();
 443
 444         application.backgroundUpdateDictionaries(dictionaryUpdater);
 445
 446         setMyListAdapater();
 447     }
 448
 449     @Override
 450     public boolean onCreateOptionsMenu(final Menu menu) {
 451         final MenuItem sort = menu.add(getString(R.string.sortDicts));
 452         MenuItemCompat.setShowAsAction(sort, MenuItem.SHOW_AS_ACTION_NEVER);
 453         sort.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
 454             public boolean onMenuItemClick(final MenuItem menuItem) {
 455                 application.sortDictionaries();
 456                 setMyListAdapater();
 457                 return true;
 458             }
 459         });
 460
 461         application.onCreateGlobalOptionsMenu(this, menu);
 462         return true;
 463     }
 464
 465     @Override
 466     public void onCreateContextMenu(final ContextMenu menu, final View view,
 467                                     final ContextMenuInfo menuInfo) {
 468         super.onCreateContextMenu(menu, view, menuInfo);
 469         Log.d(LOG, "onCreateContextMenu, " + menuInfo);
 470
 471         final AdapterContextMenuInfo adapterContextMenuInfo =
 472             (AdapterContextMenuInfo) menuInfo;
 473         final int position = adapterContextMenuInfo.position;
 474         final MyListAdapter.Row row = (MyListAdapter.Row) getListAdapter().getItem(position);
 475
 476         if (row.dictionaryInfo == null) {
 477             return;
 478         }
 479
 480         if (position > 0 && row.onDevice) {
 481             final android.view.MenuItem moveToTopMenuItem =
 482                 menu.add(R.string.moveToTop);
 483             moveToTopMenuItem.setOnMenuItemClickListener(new
 484             android.view.MenuItem.OnMenuItemClickListener() {
 485                 @Override
 486                 public boolean onMenuItemClick(android.view.MenuItem item) {
 487                     application.moveDictionaryToTop(row.dictionaryInfo);
 488                     setMyListAdapater();
 489                     return true;
 490                 }
 491             });
 492         }
 493
 494         if (row.onDevice) {
 495             final android.view.MenuItem deleteMenuItem = menu.add(R.string.deleteDictionary);
 496             deleteMenuItem
 497             .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 498                 @Override
 499                 public boolean onMenuItemClick(android.view.MenuItem item) {
 500                     application.deleteDictionary(row.dictionaryInfo);
 501                     setMyListAdapater();
 502                     return true;
 503                 }
 504             });
 505         }
 506     }
 507
 508     private void onShowDownloadableChanged() {
 509         setMyListAdapater();
 510         Editor prefs = PreferenceManager.getDefaultSharedPreferences(this).edit();
 511         prefs.putBoolean(C.SHOW_DOWNLOADABLE, showDownloadable.isChecked());
 512         prefs.commit();
 513     }
 514
 515     class MyListAdapter extends BaseAdapter {
 516
 517         List<DictionaryInfo> dictionariesOnDevice;
 518         List<DictionaryInfo> downloadableDictionaries;
 519
 520         class Row {
 521             DictionaryInfo dictionaryInfo;
 522             boolean onDevice;
 523
 524             private Row(DictionaryInfo dictionaryInfo, boolean onDevice) {
 525                 this.dictionaryInfo = dictionaryInfo;
 526                 this.onDevice = onDevice;
 527             }
 528         }
 529
 530         private MyListAdapter(final String[] filters) {
 531             dictionariesOnDevice = application.getDictionariesOnDevice(filters);
 532             if (showDownloadable.isChecked()) {
 533                 downloadableDictionaries = application.getDownloadableDictionaries(filters);
 534             } else {
 535                 downloadableDictionaries = Collections.emptyList();
 536             }
 537         }
 538
 539         @Override
 540         public int getCount() {
 541             return 2 + dictionariesOnDevice.size() + downloadableDictionaries.size();
 542         }
 543
 544         @Override
 545         public Row getItem(int position) {
 546             if (position == 0) {
 547                 return new Row(null, true);
 548             }
 549             position -= 1;
 550
 551             if (position < dictionariesOnDevice.size()) {
 552                 return new Row(dictionariesOnDevice.get(position), true);
 553             }
 554             position -= dictionariesOnDevice.size();
 555
 556             if (position == 0) {
 557                 return new Row(null, false);
 558             }
 559             position -= 1;
 560
 561             assert position < downloadableDictionaries.size();
 562             return new Row(downloadableDictionaries.get(position), false);
 563         }
 564
 565         @Override
 566         public long getItemId(int position) {
 567             return position;
 568         }
 569
 570         @Override
 571         public View getView(int position, View convertView, ViewGroup parent) {
 572             if (convertView instanceof LinearLayout &&
 573                     convertView != dictionariesOnDeviceHeaderRow &&
 574                     convertView != downloadableDictionariesHeaderRow) {
 575                 /*
 576                  * This is done to try to avoid leaking memory that used to
 577                  * happen on Android 4.0.3
 578                  */
 579                 ((LinearLayout) convertView).removeAllViews();
 580             }
 581
 582             final Row row = getItem(position);
 583
 584             if (row.onDevice) {
 585                 if (row.dictionaryInfo == null) {
 586                     return dictionariesOnDeviceHeaderRow;
 587                 }
 588                 return createDictionaryRow(row.dictionaryInfo, parent, true);
 589             }
 590
 591             if (row.dictionaryInfo == null) {
 592                 return downloadableDictionariesHeaderRow;
 593             }
 594             return createDictionaryRow(row.dictionaryInfo, parent, false);
 595         }
 596
 597     }
 598
 599     private void setMyListAdapater() {
 600         final String filter = filterSearchView == null ? "" : filterSearchView.getQuery()
 601                               .toString();
 602         final String[] filters = filter.trim().toLowerCase().split("(\\s|-)+");
 603         setListAdapter(new MyListAdapter(filters));
 604     }
 605
 606     private View createDictionaryRow(final DictionaryInfo dictionaryInfo,
 607                                      final ViewGroup parent, boolean canLaunch) {
 608
 609         View row = LayoutInflater.from(parent.getContext()).inflate(
 610                        R.layout.dictionary_manager_row, parent, false);
 611         final TextView name = (TextView) row.findViewById(R.id.dictionaryName);
 612         final TextView details = (TextView) row.findViewById(R.id.dictionaryDetails);
 613         name.setText(application.getDictionaryName(dictionaryInfo.uncompressedFilename));
 614
 615         final boolean updateAvailable = application.updateAvailable(dictionaryInfo);
 616         final Button downloadButton = (Button) row.findViewById(R.id.downloadButton);
 617         final DictionaryInfo downloadable = application.getDownloadable(dictionaryInfo.uncompressedFilename);
 618         boolean broken = false;
 619         if (!dictionaryInfo.isValid()) {
 620             broken = true;
 621             canLaunch = false;
 622         }
 623         if (downloadable != null && (!canLaunch || updateAvailable)) {
 624             downloadButton
 625             .setText(getString(
 626                          R.string.downloadButton,
 627                          downloadable.zipBytes / 1024.0 / 1024.0));
 628             downloadButton.setMinWidth(application.languageButtonPixels * 3 / 2);
 629             downloadButton.setOnClickListener(new OnClickListener() {
 630                 @Override
 631                 public void onClick(View arg0) {
 632                     downloadDictionary(downloadable.downloadUrl, downloadable.zipBytes, downloadButton);
 633                 }
 634             });
 635         } else {
 636             downloadButton.setVisibility(View.INVISIBLE);
 637         }
 638
 639         LinearLayout buttons = (LinearLayout) row.findViewById(R.id.dictionaryLauncherButtons);
 640         final List<IndexInfo> sortedIndexInfos = application
 641                 .sortedIndexInfos(dictionaryInfo.indexInfos);
 642         final StringBuilder builder = new StringBuilder();
 643         if (updateAvailable) {
 644             builder.append(getString(R.string.updateAvailable));
 645         }
 646         for (IndexInfo indexInfo : sortedIndexInfos) {
 647             final View button = application.createButton(buttons.getContext(), dictionaryInfo,
 648                                 indexInfo);
 649             buttons.addView(button);
 650
 651             if (canLaunch) {
 652                 button.setOnClickListener(
 653                     new IntentLauncher(buttons.getContext(),
 654                                        DictionaryActivity.getLaunchIntent(getApplicationContext(),
 655                                                application.getPath(dictionaryInfo.uncompressedFilename),
 656                                                indexInfo.shortName, "")));
 657
 658             } else {
 659                 button.setEnabled(false);
 660             }
 661             if (builder.length() != 0) {
 662                 builder.append("; ");
 663             }
 664             builder.append(getString(R.string.indexInfo, indexInfo.shortName,
 665                                      indexInfo.mainTokenCount));
 666         }
 667         builder.append("; ");
 668         builder.append(getString(R.string.downloadButton, dictionaryInfo.uncompressedBytes / 1024.0 / 1024.0));
 669         if (broken) {
 670             name.setText("Broken: " + application.getDictionaryName(dictionaryInfo.uncompressedFilename));
 671             builder.append("; Cannot be used, redownload, check hardware/file system");
 672             // Allow deleting, but cannot open
 673             row.setLongClickable(true);
 674         }
 675         details.setText(builder.toString());
 676
 677         if (canLaunch) {
 678             row.setClickable(true);
 679             row.setOnClickListener(new IntentLauncher(parent.getContext(),
 680                                    DictionaryActivity.getLaunchIntent(getApplicationContext(),
 681                                            application.getPath(dictionaryInfo.uncompressedFilename),
 682                                            dictionaryInfo.indexInfos.get(0).shortName, "")));
 683             row.setFocusable(true);
 684             row.setLongClickable(true);
 685         }
 686         row.setBackgroundResource(android.R.drawable.menuitem_background);
 687
 688         return row;
 689     }
 690
 691     private synchronized void downloadDictionary(final String downloadUrl, long bytes, Button downloadButton) {
 692         String destFile;
 693         try {
 694             destFile = new File(new URL(downloadUrl).getPath()).getName();
 695         } catch (MalformedURLException e) {
 696             throw new RuntimeException("Invalid download URL!", e);
 697         }
 698         DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 699         final DownloadManager.Query query = new DownloadManager.Query();
 700         query.setFilterByStatus(DownloadManager.STATUS_PAUSED | DownloadManager.STATUS_PENDING | DownloadManager.STATUS_RUNNING);
 701         final Cursor cursor = downloadManager.query(query);
 702
 703         // Due to a bug, cursor is null instead of empty when
 704         // the download manager is disabled.
 705         if (cursor == null) {
 706             new AlertDialog.Builder(DictionaryManagerActivity.this).setTitle(getString(R.string.error))
 707             .setMessage(getString(R.string.downloadFailed, R.string.downloadManagerQueryFailed))
 708             .setNeutralButton("Close", null).show();
 709             return;
 710         }
 711
 712         while (cursor.moveToNext()) {
 713             if (downloadUrl.equals(cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_URI))))
 714                 break;
 715             if (destFile.equals(cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_TITLE))))
 716                 break;
 717         }
 718         if (!cursor.isAfterLast()) {
 719             downloadManager.remove(cursor.getLong(cursor.getColumnIndex(DownloadManager.COLUMN_ID)));
 720             downloadButton
 721             .setText(getString(
 722                          R.string.downloadButton,
 723                          bytes / 1024.0 / 1024.0));
 724             cursor.close();
 725             return;
 726         }
 727         cursor.close();
 728         Request request = new Request(
 729             Uri.parse(downloadUrl));
 730
 731         Log.d(LOG, "Downloading to: " + destFile);
 732         request.setTitle(destFile);
 733
 734         File destFilePath = new File(application.getDictDir(), destFile);
 735         destFilePath.delete();
 736         try {
 737             request.setDestinationUri(Uri.fromFile(destFilePath));
 738         } catch (Exception e) {
 739         }
 740
 741         try {
 742             downloadManager.enqueue(request);
 743         } catch (SecurityException e) {
 744             request = new Request(Uri.parse(downloadUrl));
 745             request.setTitle(destFile);
 746             downloadManager.enqueue(request);
 747         }
 748         Log.w(LOG, "Download started: " + destFile);
 749         downloadButton.setText("X");
 750     }
 751
 752 }