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