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 action bar doesn't get
 286         // styled properly.
 287         // Unfortunately on some (Samsung?) Android versions this
 288         // results in a ClassCastException...
 289         boolean themeSet = true;
 290         try {
 291             setTheme(((DictionaryApplication) getApplication()).getSelectedTheme().themeId);
 292         } catch (ClassCastException e) {
 293             themeSet = false;
 294         }
 295
 296         super.onCreate(savedInstanceState);
 297         Log.d(LOG, "onCreate:" + this);
 298
 299         application = (DictionaryApplication) getApplication();
 300         if (!themeSet)
 301             setTheme(application.getSelectedTheme().themeId);
 302
 303         blockAutoLaunch = false;
 304
 305         // UI init.
 306         setContentView(R.layout.dictionary_manager_activity);
 307
 308         dictionariesOnDeviceHeaderRow = (LinearLayout) LayoutInflater.from(
 309                                             getListView().getContext()).inflate(
 310                                             R.layout.dictionary_manager_header_row_on_device, getListView(), false);
 311
 312         downloadableDictionariesHeaderRow = (LinearLayout) LayoutInflater.from(
 313                                                 getListView().getContext()).inflate(
 314                                                 R.layout.dictionary_manager_header_row_downloadable, getListView(), false);
 315
 316         showDownloadable = (ToggleButton) downloadableDictionariesHeaderRow
 317                            .findViewById(R.id.hideDownloadable);
 318         showDownloadable.setOnCheckedChangeListener(new OnCheckedChangeListener() {
 319             @Override
 320             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 321                 onShowDownloadableChanged();
 322             }
 323         });
 324
 325         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 326         final String thanksForUpdatingLatestVersion = getString(R.string.thanksForUpdatingVersion);
 327         if (!prefs.getString(C.THANKS_FOR_UPDATING_VERSION, "").equals(
 328                     thanksForUpdatingLatestVersion)) {
 329             blockAutoLaunch = true;
 330             startActivity(HtmlDisplayActivity.getWhatsNewLaunchIntent(getApplicationContext()));
 331             prefs.edit().putString(C.THANKS_FOR_UPDATING_VERSION, thanksForUpdatingLatestVersion)
 332             .commit();
 333         }
 334
 335         registerReceiver(broadcastReceiver, new IntentFilter(
 336                              DownloadManager.ACTION_DOWNLOAD_COMPLETE));
 337
 338         setMyListAdapater();
 339         registerForContextMenu(getListView());
 340         getListView().setItemsCanFocus(true);
 341
 342         readableCheckAndError(true);
 343
 344         onCreateSetupActionBar();
 345     }
 346
 347     private void onCreateSetupActionBar() {
 348         ActionBar actionBar = getSupportActionBar();
 349         actionBar.setDisplayShowTitleEnabled(false);
 350         actionBar.setDisplayShowHomeEnabled(false);
 351         actionBar.setDisplayHomeAsUpEnabled(false);
 352
 353         filterSearchView = new SearchView(getSupportActionBar().getThemedContext());
 354         filterSearchView.setIconifiedByDefault(false);
 355         // filterSearchView.setIconified(false); // puts the magnifying glass in
 356         // the
 357         // wrong place.
 358         filterSearchView.setQueryHint(getString(R.string.searchText));
 359         filterSearchView.setSubmitButtonEnabled(false);
 360         FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT,
 361                 FrameLayout.LayoutParams.WRAP_CONTENT);
 362         filterSearchView.setLayoutParams(lp);
 363         filterSearchView.setInputType(InputType.TYPE_CLASS_TEXT);
 364         filterSearchView.setImeOptions(
 365             EditorInfo.IME_ACTION_DONE |
 366             EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 367             // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 368             // 11
 369             EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 370
 371         filterSearchView.setOnQueryTextListener(new OnQueryTextListener() {
 372             @Override
 373             public boolean onQueryTextSubmit(String query) {
 374                 filterSearchView.clearFocus();
 375                 return false;
 376             }
 377
 378             @Override
 379             public boolean onQueryTextChange(String filterText) {
 380                 setMyListAdapater();
 381                 return true;
 382             }
 383         });
 384         filterSearchView.setFocusable(true);
 385
 386         actionBar.setCustomView(filterSearchView);
 387         actionBar.setDisplayShowCustomEnabled(true);
 388
 389         // Avoid wasting space on large left inset
 390         Toolbar tb = (Toolbar)filterSearchView.getParent();
 391         tb.setContentInsetsRelative(0, 0);
 392     }
 393
 394     @Override
 395     public void onDestroy() {
 396         super.onDestroy();
 397         unregisterReceiver(broadcastReceiver);
 398     }
 399
 400     private static void copyStream(final InputStream ins, final FileOutputStream outs)
 401     throws IOException {
 402         ByteBuffer buf = ByteBuffer.allocateDirect(1024 * 64);
 403         FileChannel out = outs.getChannel();
 404         int bytesRead;
 405         int pos = 0;
 406         final byte[] bytes = new byte[1024 * 64];
 407         do {
 408             bytesRead = ins.read(bytes, pos, bytes.length - pos);
 409             if (bytesRead != -1) pos += bytesRead;
 410             if (bytesRead == -1 ? pos != 0 : 2*pos >= bytes.length) {
 411                 buf.put(bytes, 0, pos);
 412                 pos = 0;
 413                 buf.flip();
 414                 while (buf.hasRemaining()) out.write(buf);
 415                 buf.clear();
 416             }
 417         } while (bytesRead != -1);
 418     }
 419
 420     @Override
 421     protected void onStart() {
 422         super.onStart();
 423         uiHandler = new Handler();
 424     }
 425
 426     @Override
 427     protected void onStop() {
 428         super.onStop();
 429         uiHandler = null;
 430     }
 431
 432     @Override
 433     protected void onResume() {
 434         super.onResume();
 435
 436         if (PreferenceActivity.prefsMightHaveChanged) {
 437             PreferenceActivity.prefsMightHaveChanged = false;
 438             finish();
 439             startActivity(getIntent());
 440         }
 441
 442         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 443         showDownloadable.setChecked(prefs.getBoolean(C.SHOW_DOWNLOADABLE, true));
 444
 445         if (!blockAutoLaunch &&
 446                 getIntent().getBooleanExtra(C.CAN_AUTO_LAUNCH_DICT, true) &&
 447                 prefs.contains(C.DICT_FILE) &&
 448                 prefs.contains(C.INDEX_SHORT_NAME)) {
 449             Log.d(LOG, "Skipping DictionaryManager, going straight to dictionary.");
 450             startActivity(DictionaryActivity.getLaunchIntent(getApplicationContext(),
 451                           new File(prefs.getString(C.DICT_FILE, "")),
 452                           prefs.getString(C.INDEX_SHORT_NAME, ""),
 453                           prefs.getString(C.SEARCH_TOKEN, "")));
 454             finish();
 455             return;
 456         }
 457
 458         // Remove the active dictionary from the prefs so we won't autolaunch
 459         // next time.
 460         final Editor editor = prefs.edit();
 461         editor.remove(C.DICT_FILE);
 462         editor.remove(C.INDEX_SHORT_NAME);
 463         editor.remove(C.SEARCH_TOKEN);
 464         editor.commit();
 465
 466         application.backgroundUpdateDictionaries(dictionaryUpdater);
 467
 468         setMyListAdapater();
 469     }
 470
 471     @Override
 472     public boolean onCreateOptionsMenu(final Menu menu) {
 473         if ("true".equals(Settings.System.getString(getContentResolver(), "firebase.test.lab")))
 474         {
 475             return false; // testing the menu is not very interesting
 476         }
 477         final MenuItem sort = menu.add(getString(R.string.sortDicts));
 478         MenuItemCompat.setShowAsAction(sort, MenuItem.SHOW_AS_ACTION_NEVER);
 479         sort.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
 480             public boolean onMenuItemClick(final MenuItem menuItem) {
 481                 application.sortDictionaries();
 482                 setMyListAdapater();
 483                 return true;
 484             }
 485         });
 486
 487         application.onCreateGlobalOptionsMenu(this, menu);
 488         return true;
 489     }
 490
 491     @Override
 492     public void onCreateContextMenu(final ContextMenu menu, final View view,
 493                                     final ContextMenuInfo menuInfo) {
 494         super.onCreateContextMenu(menu, view, menuInfo);
 495         Log.d(LOG, "onCreateContextMenu, " + menuInfo);
 496
 497         final AdapterContextMenuInfo adapterContextMenuInfo =
 498             (AdapterContextMenuInfo) menuInfo;
 499         final int position = adapterContextMenuInfo.position;
 500         final MyListAdapter.Row row = (MyListAdapter.Row) getListAdapter().getItem(position);
 501
 502         if (row.dictionaryInfo == null) {
 503             return;
 504         }
 505
 506         if (position > 0 && row.onDevice) {
 507             final android.view.MenuItem moveToTopMenuItem =
 508                 menu.add(R.string.moveToTop);
 509             moveToTopMenuItem.setOnMenuItemClickListener(new
 510             android.view.MenuItem.OnMenuItemClickListener() {
 511                 @Override
 512                 public boolean onMenuItemClick(android.view.MenuItem item) {
 513                     application.moveDictionaryToTop(row.dictionaryInfo);
 514                     setMyListAdapater();
 515                     return true;
 516                 }
 517             });
 518         }
 519
 520         if (row.onDevice) {
 521             final android.view.MenuItem deleteMenuItem = menu.add(R.string.deleteDictionary);
 522             deleteMenuItem
 523             .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 524                 @Override
 525                 public boolean onMenuItemClick(android.view.MenuItem item) {
 526                     application.deleteDictionary(row.dictionaryInfo);
 527                     setMyListAdapater();
 528                     return true;
 529                 }
 530             });
 531         }
 532     }
 533
 534     private void onShowDownloadableChanged() {
 535         setMyListAdapater();
 536         Editor prefs = PreferenceManager.getDefaultSharedPreferences(this).edit();
 537         prefs.putBoolean(C.SHOW_DOWNLOADABLE, showDownloadable.isChecked());
 538         prefs.commit();
 539     }
 540
 541     class MyListAdapter extends BaseAdapter {
 542
 543         List<DictionaryInfo> dictionariesOnDevice;
 544         List<DictionaryInfo> downloadableDictionaries;
 545
 546         class Row {
 547             DictionaryInfo dictionaryInfo;
 548             boolean onDevice;
 549
 550             private Row(DictionaryInfo dictionaryInfo, boolean onDevice) {
 551                 this.dictionaryInfo = dictionaryInfo;
 552                 this.onDevice = onDevice;
 553             }
 554         }
 555
 556         private MyListAdapter(final String[] filters) {
 557             dictionariesOnDevice = application.getDictionariesOnDevice(filters);
 558             if (showDownloadable.isChecked()) {
 559                 downloadableDictionaries = application.getDownloadableDictionaries(filters);
 560             } else {
 561                 downloadableDictionaries = Collections.emptyList();
 562             }
 563         }
 564
 565         @Override
 566         public int getCount() {
 567             return 2 + dictionariesOnDevice.size() + downloadableDictionaries.size();
 568         }
 569
 570         @Override
 571         public Row getItem(int position) {
 572             if (position == 0) {
 573                 return new Row(null, true);
 574             }
 575             position -= 1;
 576
 577             if (position < dictionariesOnDevice.size()) {
 578                 return new Row(dictionariesOnDevice.get(position), true);
 579             }
 580             position -= dictionariesOnDevice.size();
 581
 582             if (position == 0) {
 583                 return new Row(null, false);
 584             }
 585             position -= 1;
 586
 587             assert position < downloadableDictionaries.size();
 588             return new Row(downloadableDictionaries.get(position), false);
 589         }
 590
 591         @Override
 592         public long getItemId(int position) {
 593             return position;
 594         }
 595
 596         @Override
 597         public View getView(int position, View convertView, ViewGroup parent) {
 598             if (convertView instanceof LinearLayout &&
 599                     convertView != dictionariesOnDeviceHeaderRow &&
 600                     convertView != downloadableDictionariesHeaderRow) {
 601                 /*
 602                  * This is done to try to avoid leaking memory that used to
 603                  * happen on Android 4.0.3
 604                  */
 605                 ((LinearLayout) convertView).removeAllViews();
 606             }
 607
 608             final Row row = getItem(position);
 609
 610             if (row.onDevice) {
 611                 if (row.dictionaryInfo == null) {
 612                     return dictionariesOnDeviceHeaderRow;
 613                 }
 614                 return createDictionaryRow(row.dictionaryInfo, parent, true);
 615             }
 616
 617             if (row.dictionaryInfo == null) {
 618                 return downloadableDictionariesHeaderRow;
 619             }
 620             return createDictionaryRow(row.dictionaryInfo, parent, false);
 621         }
 622
 623     }
 624
 625     private void setMyListAdapater() {
 626         final String filter = filterSearchView == null ? "" : filterSearchView.getQuery()
 627                               .toString();
 628         final String[] filters = filter.trim().toLowerCase().split("(\\s|-)+");
 629         setListAdapter(new MyListAdapter(filters));
 630     }
 631
 632     private View createDictionaryRow(final DictionaryInfo dictionaryInfo,
 633                                      final ViewGroup parent, boolean canLaunch) {
 634
 635         View row = LayoutInflater.from(parent.getContext()).inflate(
 636                        R.layout.dictionary_manager_row, parent, false);
 637         final TextView name = (TextView) row.findViewById(R.id.dictionaryName);
 638         final TextView details = (TextView) row.findViewById(R.id.dictionaryDetails);
 639         name.setText(application.getDictionaryName(dictionaryInfo.uncompressedFilename));
 640
 641         final boolean updateAvailable = application.updateAvailable(dictionaryInfo);
 642         final Button downloadButton = (Button) row.findViewById(R.id.downloadButton);
 643         final DictionaryInfo downloadable = application.getDownloadable(dictionaryInfo.uncompressedFilename);
 644         boolean broken = false;
 645         if (!dictionaryInfo.isValid()) {
 646             broken = true;
 647             canLaunch = false;
 648         }
 649         if (downloadable != null && (!canLaunch || updateAvailable)) {
 650             downloadButton
 651             .setText(getString(
 652                          R.string.downloadButton,
 653                          downloadable.zipBytes / 1024.0 / 1024.0));
 654             downloadButton.setMinWidth(application.languageButtonPixels * 3 / 2);
 655             downloadButton.setOnClickListener(new OnClickListener() {
 656                 @Override
 657                 public void onClick(View arg0) {
 658                     downloadDictionary(downloadable.downloadUrl, downloadable.zipBytes, downloadButton);
 659                 }
 660             });
 661         } else {
 662             downloadButton.setVisibility(View.INVISIBLE);
 663         }
 664
 665         LinearLayout buttons = (LinearLayout) row.findViewById(R.id.dictionaryLauncherButtons);
 666         final List<IndexInfo> sortedIndexInfos = application
 667                 .sortedIndexInfos(dictionaryInfo.indexInfos);
 668         final StringBuilder builder = new StringBuilder();
 669         if (updateAvailable) {
 670             builder.append(getString(R.string.updateAvailable));
 671         }
 672         for (IndexInfo indexInfo : sortedIndexInfos) {
 673             final View button = application.createButton(buttons.getContext(), dictionaryInfo,
 674                                 indexInfo);
 675             buttons.addView(button);
 676
 677             if (canLaunch) {
 678                 button.setOnClickListener(
 679                     new IntentLauncher(buttons.getContext(),
 680                                        DictionaryActivity.getLaunchIntent(getApplicationContext(),
 681                                                application.getPath(dictionaryInfo.uncompressedFilename),
 682                                                indexInfo.shortName, "")));
 683
 684             } else {
 685                 button.setEnabled(false);
 686                 button.setFocusable(false);
 687             }
 688             if (builder.length() != 0) {
 689                 builder.append("; ");
 690             }
 691             builder.append(getString(R.string.indexInfo, indexInfo.shortName,
 692                                      indexInfo.mainTokenCount));
 693         }
 694         builder.append("; ");
 695         builder.append(getString(R.string.downloadButton, dictionaryInfo.uncompressedBytes / 1024.0 / 1024.0));
 696         if (broken) {
 697             name.setText("Broken: " + application.getDictionaryName(dictionaryInfo.uncompressedFilename));
 698             builder.append("; Cannot be used, redownload, check hardware/file system");
 699             // Allow deleting, but cannot open
 700             row.setLongClickable(true);
 701         }
 702         details.setText(builder.toString());
 703
 704         if (canLaunch) {
 705             row.setClickable(true);
 706             row.setOnClickListener(new IntentLauncher(parent.getContext(),
 707                                    DictionaryActivity.getLaunchIntent(getApplicationContext(),
 708                                            application.getPath(dictionaryInfo.uncompressedFilename),
 709                                            dictionaryInfo.indexInfos.get(0).shortName, "")));
 710             // do not setFocusable, for keyboard navigation
 711             // offering only the index buttons is better.
 712             row.setLongClickable(true);
 713         }
 714         row.setBackgroundResource(android.R.drawable.menuitem_background);
 715
 716         return row;
 717     }
 718
 719     private synchronized void downloadDictionary(final String downloadUrl, long bytes, Button downloadButton) {
 720         String destFile;
 721         try {
 722             destFile = new File(new URL(downloadUrl).getPath()).getName();
 723         } catch (MalformedURLException e) {
 724             throw new RuntimeException("Invalid download URL!", e);
 725         }
 726         DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 727         final DownloadManager.Query query = new DownloadManager.Query();
 728         query.setFilterByStatus(DownloadManager.STATUS_PAUSED | DownloadManager.STATUS_PENDING | DownloadManager.STATUS_RUNNING);
 729         final Cursor cursor = downloadManager.query(query);
 730
 731         // Due to a bug, cursor is null instead of empty when
 732         // the download manager is disabled.
 733         if (cursor == null) {
 734             new AlertDialog.Builder(DictionaryManagerActivity.this).setTitle(getString(R.string.error))
 735             .setMessage(getString(R.string.downloadFailed, R.string.downloadManagerQueryFailed))
 736             .setNeutralButton("Close", null).show();
 737             return;
 738         }
 739
 740         while (cursor.moveToNext()) {
 741             if (downloadUrl.equals(cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_URI))))
 742                 break;
 743             if (destFile.equals(cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_TITLE))))
 744                 break;
 745         }
 746         if (!cursor.isAfterLast()) {
 747             downloadManager.remove(cursor.getLong(cursor.getColumnIndex(DownloadManager.COLUMN_ID)));
 748             downloadButton
 749             .setText(getString(
 750                          R.string.downloadButton,
 751                          bytes / 1024.0 / 1024.0));
 752             cursor.close();
 753             return;
 754         }
 755         cursor.close();
 756         Request request = new Request(
 757             Uri.parse(downloadUrl));
 758
 759         Log.d(LOG, "Downloading to: " + destFile);
 760         request.setTitle(destFile);
 761
 762         File destFilePath = new File(application.getDictDir(), destFile);
 763         destFilePath.delete();
 764         try {
 765             request.setDestinationUri(Uri.fromFile(destFilePath));
 766         } catch (Exception e) {
 767         }
 768
 769         try {
 770             downloadManager.enqueue(request);
 771         } catch (SecurityException e) {
 772             request = new Request(Uri.parse(downloadUrl));
 773             request.setTitle(destFile);
 774             downloadManager.enqueue(request);
 775         }
 776         Log.w(LOG, "Download started: " + destFile);
 777         downloadButton.setText("X");
 778     }
 779
 780 }