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.ImageButton;
  64 import android.widget.LinearLayout;
  65 import android.widget.ListAdapter;
  66 import android.widget.ListView;
  67 import android.widget.TextView;
  68 import android.widget.Toast;
  69 import android.widget.ToggleButton;
  70
  71 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  72 import com.hughes.android.util.IntentLauncher;
  73
  74 import java.io.BufferedInputStream;
  75 import java.io.File;
  76 import java.io.FileInputStream;
  77 import java.io.FileOutputStream;
  78 import java.io.IOException;
  79 import java.io.InputStream;
  80 import java.io.OutputStream;
  81 import java.net.MalformedURLException;
  82 import java.net.URL;
  83 import java.nio.ByteBuffer;
  84 import java.nio.channels.FileChannel;
  85 import java.util.Collections;
  86 import java.util.HashSet;
  87 import java.util.List;
  88 import java.util.Set;
  89 import java.util.zip.ZipEntry;
  90 import java.util.zip.ZipFile;
  91 import java.util.zip.ZipInputStream;
  92
  93 // Right-click:
  94 //  Delete, move to top.
  95
  96 public class DictionaryManagerActivity extends ActionBarActivity {
  97
  98     static final String LOG = "QuickDic";
  99     static boolean blockAutoLaunch = false;
 100
 101     private ListView listView;
 102     private ListView getListView() {
 103         if (listView == null) {
 104             listView = (ListView)findViewById(android.R.id.list);
 105         }
 106         return listView;
 107     }
 108     private void setListAdapter(ListAdapter adapter) {
 109         getListView().setAdapter(adapter);
 110     }
 111     private ListAdapter getListAdapter() {
 112         return getListView().getAdapter();
 113     }
 114
 115     // For DownloadManager bug workaround
 116     private Set<Long> finishedDownloadIds = new HashSet<Long>();
 117
 118     DictionaryApplication application;
 119
 120     SearchView filterSearchView;
 121     ToggleButton showDownloadable;
 122
 123     LinearLayout dictionariesOnDeviceHeaderRow;
 124     LinearLayout downloadableDictionariesHeaderRow;
 125
 126     Handler uiHandler;
 127
 128     Runnable dictionaryUpdater = new Runnable() {
 129         @Override
 130         public void run() {
 131             if (uiHandler == null) {
 132                 return;
 133             }
 134             uiHandler.post(new Runnable() {
 135                 @Override
 136                 public void run() {
 137                     setMyListAdapater();
 138                 }
 139             });
 140         }
 141     };
 142
 143     final BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
 144         @Override
 145         public synchronized void onReceive(Context context, Intent intent) {
 146             final String action = intent.getAction();
 147
 148             if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {
 149                 final long downloadId = intent.getLongExtra(
 150                                             DownloadManager.EXTRA_DOWNLOAD_ID, 0);
 151                 if (finishedDownloadIds.contains(downloadId)) return; // ignore double notifications
 152                 final DownloadManager.Query query = new DownloadManager.Query();
 153                 query.setFilterById(downloadId);
 154                 final DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 155                 final Cursor cursor = downloadManager.query(query);
 156
 157                 if (cursor == null || !cursor.moveToFirst()) {
 158                     Log.e(LOG, "Couldn't find download.");
 159                     return;
 160                 }
 161
 162                 final String dest = cursor
 163                                     .getString(cursor.getColumnIndex(DownloadManager.COLUMN_LOCAL_URI));
 164                 final int status = cursor
 165                                    .getInt(cursor
 166                                            .getColumnIndex(DownloadManager.COLUMN_STATUS));
 167                 if (DownloadManager.STATUS_SUCCESSFUL != status) {
 168                     final int reason = cursor.getInt(cursor.getColumnIndex(DownloadManager.COLUMN_REASON));
 169                     Log.w(LOG,
 170                           "Download failed: status=" + status +
 171                           ", reason=" + reason);
 172                     String msg = Integer.toString(reason);
 173                     switch (reason) {
 174                     case DownloadManager.ERROR_FILE_ALREADY_EXISTS:
 175                         msg = "File exists";
 176                         break;
 177                     case DownloadManager.ERROR_FILE_ERROR:
 178                         msg = "File error";
 179                         break;
 180                     case DownloadManager.ERROR_INSUFFICIENT_SPACE:
 181                         msg = "Not enough space";
 182                         break;
 183                     }
 184                     new AlertDialog.Builder(context).setTitle(getString(R.string.error)).setMessage(getString(R.string.downloadFailed, msg)).setNeutralButton("Close", null).show();
 185                     return;
 186                 }
 187
 188                 Log.w(LOG, "Download finished: " + dest + " Id: " + downloadId);
 189                 Toast.makeText(context, getString(R.string.unzippingDictionary, dest),
 190                                Toast.LENGTH_LONG).show();
 191
 192                 if (unzipInstall(context, Uri.parse(dest), dest, true)) {
 193                     finishedDownloadIds.add(downloadId);
 194                     Log.w(LOG, "Unzipping finished: " + dest + " Id: " + downloadId);
 195                 }
 196             }
 197         }
 198     };
 199
 200     private boolean unzipInstall(Context context, Uri zipUri, String dest, boolean delete) {
 201         File localZipFile = null;
 202         InputStream zipFileStream = null;
 203         ZipInputStream zipFile = null;
 204         FileOutputStream zipOut = null;
 205         boolean result = false;
 206         try {
 207             if (zipUri.getScheme().equals("content")) {
 208                 zipFileStream = context.getContentResolver().openInputStream(zipUri);
 209                 localZipFile = null;
 210             } else {
 211                 localZipFile = new File(zipUri.getPath());
 212                 try {
 213                     zipFileStream = new FileInputStream(localZipFile);
 214                 } catch (Exception e) {
 215                     if (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
 216                         ActivityCompat.requestPermissions(this,
 217                                                   new String[] {Manifest.permission.READ_EXTERNAL_STORAGE,
 218                                                           Manifest.permission.WRITE_EXTERNAL_STORAGE
 219                                                                }, 0);
 220                         return false;
 221                     }
 222                     throw e;
 223                 }
 224             }
 225             zipFile = new ZipInputStream(new BufferedInputStream(zipFileStream));
 226             final ZipEntry zipEntry = zipFile.getNextEntry();
 227             Log.d(LOG, "Unzipping entry: " + zipEntry.getName());
 228             File targetFile = new File(application.getDictDir(), zipEntry.getName());
 229             if (targetFile.exists()) {
 230                 targetFile.renameTo(new File(targetFile.getAbsolutePath().replace(".quickdic", ".bak.quickdic")));
 231                 targetFile = new File(application.getDictDir(), zipEntry.getName());
 232             }
 233             zipOut = new FileOutputStream(targetFile);
 234             copyStream(zipFile, zipOut);
 235             application.backgroundUpdateDictionaries(dictionaryUpdater);
 236             Toast.makeText(context, getString(R.string.installationFinished, dest),
 237                            Toast.LENGTH_LONG).show();
 238             result = true;
 239         } catch (Exception e) {
 240             String msg = getString(R.string.unzippingFailed, dest + ": " + e.getMessage());
 241             File dir = application.getDictDir();
 242             if (!dir.canWrite() || !application.checkFileCreate(dir)) {
 243                 msg = getString(R.string.notWritable, dir.getAbsolutePath());
 244             }
 245             new AlertDialog.Builder(context).setTitle(getString(R.string.error)).setMessage(msg).setNeutralButton("Close", null).show();
 246             Log.e(LOG, "Failed to unzip.", e);
 247         } finally {
 248             try {
 249                 if (zipOut != null) zipOut.close();
 250             } catch (IOException e) {}
 251             try {
 252                 if (zipFile != null) zipFile.close();
 253             } catch (IOException e) {}
 254             try {
 255                 if (zipFileStream != null) zipFileStream.close();
 256             } catch (IOException e) {}
 257             if (localZipFile != null && delete) localZipFile.delete();
 258         }
 259         return result;
 260     }
 261
 262     public static Intent getLaunchIntent(Context c) {
 263         final Intent intent = new Intent(c, DictionaryManagerActivity.class);
 264         intent.putExtra(C.CAN_AUTO_LAUNCH_DICT, false);
 265         return intent;
 266     }
 267
 268     public void readableCheckAndError(boolean requestPermission) {
 269         final File dictDir = application.getDictDir();
 270         if (dictDir.canRead() && dictDir.canExecute()) return;
 271         blockAutoLaunch = true;
 272         if (requestPermission &&
 273                 ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
 274             ActivityCompat.requestPermissions(this,
 275                                               new String[] {Manifest.permission.READ_EXTERNAL_STORAGE,
 276                                                       Manifest.permission.WRITE_EXTERNAL_STORAGE
 277                                                            }, 0);
 278             return;
 279         }
 280         blockAutoLaunch = true;
 281
 282         AlertDialog.Builder builder = new AlertDialog.Builder(getListView().getContext());
 283         builder.setTitle(getString(R.string.error));
 284         builder.setMessage(getString(
 285                                R.string.unableToReadDictionaryDir,
 286                                dictDir.getAbsolutePath(),
 287                                Environment.getExternalStorageDirectory()));
 288         builder.setNeutralButton("Close", null);
 289         builder.create().show();
 290     }
 291
 292     @Override
 293     public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
 294         readableCheckAndError(false);
 295
 296         application.backgroundUpdateDictionaries(dictionaryUpdater);
 297
 298         setMyListAdapater();
 299     }
 300
 301     @Override
 302     public void onCreate(Bundle savedInstanceState) {
 303         DictionaryApplication.INSTANCE.init(getApplicationContext());
 304         application = DictionaryApplication.INSTANCE;
 305         // This must be first, otherwise the action bar doesn't get
 306         // styled properly.
 307         setTheme(application.getSelectedTheme().themeId);
 308
 309         super.onCreate(savedInstanceState);
 310         Log.d(LOG, "onCreate:" + this);
 311
 312         setTheme(application.getSelectedTheme().themeId);
 313
 314         blockAutoLaunch = false;
 315
 316         // UI init.
 317         setContentView(R.layout.dictionary_manager_activity);
 318
 319         dictionariesOnDeviceHeaderRow = (LinearLayout) LayoutInflater.from(
 320                                             getListView().getContext()).inflate(
 321                                             R.layout.dictionary_manager_header_row_on_device, getListView(), false);
 322
 323         downloadableDictionariesHeaderRow = (LinearLayout) LayoutInflater.from(
 324                                                 getListView().getContext()).inflate(
 325                                                 R.layout.dictionary_manager_header_row_downloadable, getListView(), false);
 326
 327         showDownloadable = (ToggleButton) downloadableDictionariesHeaderRow
 328                            .findViewById(R.id.hideDownloadable);
 329         showDownloadable.setOnCheckedChangeListener(new OnCheckedChangeListener() {
 330             @Override
 331             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 332                 onShowDownloadableChanged();
 333             }
 334         });
 335
 336         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 337         final String thanksForUpdatingLatestVersion = getString(R.string.thanksForUpdatingVersion);
 338         if (!prefs.getString(C.THANKS_FOR_UPDATING_VERSION, "").equals(
 339                     thanksForUpdatingLatestVersion)) {
 340             blockAutoLaunch = true;
 341             startActivity(HtmlDisplayActivity.getWhatsNewLaunchIntent(getApplicationContext()));
 342             prefs.edit().putString(C.THANKS_FOR_UPDATING_VERSION, thanksForUpdatingLatestVersion)
 343             .commit();
 344         }
 345
 346         registerReceiver(broadcastReceiver, new IntentFilter(
 347                              DownloadManager.ACTION_DOWNLOAD_COMPLETE));
 348
 349         setMyListAdapater();
 350         registerForContextMenu(getListView());
 351         getListView().setItemsCanFocus(true);
 352
 353         readableCheckAndError(true);
 354
 355         onCreateSetupActionBar();
 356
 357         final Intent intent = getIntent();
 358         if (intent != null && intent.getAction() != null &&
 359             intent.getAction().equals(Intent.ACTION_VIEW)) {
 360             blockAutoLaunch = true;
 361             Uri uri = intent.getData();
 362             unzipInstall(this, uri, uri.getLastPathSegment(), false);
 363         }
 364     }
 365
 366     private void onCreateSetupActionBar() {
 367         ActionBar actionBar = getSupportActionBar();
 368         actionBar.setDisplayShowTitleEnabled(false);
 369         actionBar.setDisplayShowHomeEnabled(false);
 370         actionBar.setDisplayHomeAsUpEnabled(false);
 371
 372         filterSearchView = new SearchView(getSupportActionBar().getThemedContext());
 373         filterSearchView.setIconifiedByDefault(false);
 374         // filterSearchView.setIconified(false); // puts the magnifying glass in
 375         // the
 376         // wrong place.
 377         filterSearchView.setQueryHint(getString(R.string.searchText));
 378         filterSearchView.setSubmitButtonEnabled(false);
 379         FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT,
 380                 FrameLayout.LayoutParams.WRAP_CONTENT);
 381         filterSearchView.setLayoutParams(lp);
 382         filterSearchView.setInputType(InputType.TYPE_CLASS_TEXT);
 383         filterSearchView.setImeOptions(
 384             EditorInfo.IME_ACTION_DONE |
 385             EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 386             // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 387             // 11
 388             EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 389
 390         filterSearchView.setOnQueryTextListener(new OnQueryTextListener() {
 391             @Override
 392             public boolean onQueryTextSubmit(String query) {
 393                 filterSearchView.clearFocus();
 394                 return false;
 395             }
 396
 397             @Override
 398             public boolean onQueryTextChange(String filterText) {
 399                 setMyListAdapater();
 400                 return true;
 401             }
 402         });
 403         filterSearchView.setFocusable(true);
 404
 405         actionBar.setCustomView(filterSearchView);
 406         actionBar.setDisplayShowCustomEnabled(true);
 407
 408         // Avoid wasting space on large left inset
 409         Toolbar tb = (Toolbar)filterSearchView.getParent();
 410         tb.setContentInsetsRelative(0, 0);
 411     }
 412
 413     @Override
 414     public void onDestroy() {
 415         super.onDestroy();
 416         unregisterReceiver(broadcastReceiver);
 417     }
 418
 419     private static void copyStream(final InputStream ins, final FileOutputStream outs)
 420     throws IOException {
 421         ByteBuffer buf = ByteBuffer.allocateDirect(1024 * 64);
 422         FileChannel out = outs.getChannel();
 423         int bytesRead;
 424         int pos = 0;
 425         final byte[] bytes = new byte[1024 * 64];
 426         do {
 427             bytesRead = ins.read(bytes, pos, bytes.length - pos);
 428             if (bytesRead != -1) pos += bytesRead;
 429             if (bytesRead == -1 ? pos != 0 : 2*pos >= bytes.length) {
 430                 buf.put(bytes, 0, pos);
 431                 pos = 0;
 432                 buf.flip();
 433                 while (buf.hasRemaining()) out.write(buf);
 434                 buf.clear();
 435             }
 436         } while (bytesRead != -1);
 437     }
 438
 439     @Override
 440     protected void onStart() {
 441         super.onStart();
 442         uiHandler = new Handler();
 443     }
 444
 445     @Override
 446     protected void onStop() {
 447         super.onStop();
 448         uiHandler = null;
 449     }
 450
 451     @Override
 452     protected void onResume() {
 453         super.onResume();
 454
 455         if (PreferenceActivity.prefsMightHaveChanged) {
 456             PreferenceActivity.prefsMightHaveChanged = false;
 457             finish();
 458             startActivity(getIntent());
 459         }
 460
 461         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 462         showDownloadable.setChecked(prefs.getBoolean(C.SHOW_DOWNLOADABLE, true));
 463
 464         if (!blockAutoLaunch &&
 465                 getIntent().getBooleanExtra(C.CAN_AUTO_LAUNCH_DICT, true) &&
 466                 prefs.contains(C.DICT_FILE) &&
 467                 prefs.contains(C.INDEX_SHORT_NAME)) {
 468             Log.d(LOG, "Skipping DictionaryManager, going straight to dictionary.");
 469             startActivity(DictionaryActivity.getLaunchIntent(getApplicationContext(),
 470                           new File(prefs.getString(C.DICT_FILE, "")),
 471                           prefs.getString(C.INDEX_SHORT_NAME, ""),
 472                           ""));
 473             finish();
 474             return;
 475         }
 476
 477         // Remove the active dictionary from the prefs so we won't autolaunch
 478         // next time.
 479         prefs.edit().remove(C.DICT_FILE).remove(C.INDEX_SHORT_NAME).commit();
 480
 481         application.backgroundUpdateDictionaries(dictionaryUpdater);
 482
 483         setMyListAdapater();
 484     }
 485
 486     @Override
 487     public boolean onCreateOptionsMenu(final Menu menu) {
 488         if ("true".equals(Settings.System.getString(getContentResolver(), "firebase.test.lab")))
 489         {
 490             return false; // testing the menu is not very interesting
 491         }
 492         final MenuItem sort = menu.add(getString(R.string.sortDicts));
 493         MenuItemCompat.setShowAsAction(sort, MenuItem.SHOW_AS_ACTION_NEVER);
 494         sort.setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
 495             public boolean onMenuItemClick(final MenuItem menuItem) {
 496                 application.sortDictionaries();
 497                 setMyListAdapater();
 498                 return true;
 499             }
 500         });
 501
 502         application.onCreateGlobalOptionsMenu(this, menu);
 503         return true;
 504     }
 505
 506     @Override
 507     public void onCreateContextMenu(final ContextMenu menu, final View view,
 508                                     final ContextMenuInfo menuInfo) {
 509         super.onCreateContextMenu(menu, view, menuInfo);
 510         Log.d(LOG, "onCreateContextMenu, " + menuInfo);
 511
 512         final AdapterContextMenuInfo adapterContextMenuInfo =
 513             (AdapterContextMenuInfo) menuInfo;
 514         final int position = adapterContextMenuInfo.position;
 515         final MyListAdapter.Row row = (MyListAdapter.Row) getListAdapter().getItem(position);
 516
 517         if (row.dictionaryInfo == null) {
 518             return;
 519         }
 520
 521         if (position > 0 && row.onDevice) {
 522             final android.view.MenuItem moveToTopMenuItem =
 523                 menu.add(R.string.moveToTop);
 524             moveToTopMenuItem.setOnMenuItemClickListener(new
 525             android.view.MenuItem.OnMenuItemClickListener() {
 526                 @Override
 527                 public boolean onMenuItemClick(android.view.MenuItem item) {
 528                     application.moveDictionaryToTop(row.dictionaryInfo);
 529                     setMyListAdapater();
 530                     return true;
 531                 }
 532             });
 533         }
 534
 535         if (row.onDevice) {
 536             final android.view.MenuItem deleteMenuItem = menu.add(R.string.deleteDictionary);
 537             deleteMenuItem
 538             .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 539                 @Override
 540                 public boolean onMenuItemClick(android.view.MenuItem item) {
 541                     application.deleteDictionary(row.dictionaryInfo);
 542                     setMyListAdapater();
 543                     return true;
 544                 }
 545             });
 546         }
 547     }
 548
 549     private void onShowDownloadableChanged() {
 550         setMyListAdapater();
 551         Editor prefs = PreferenceManager.getDefaultSharedPreferences(this).edit();
 552         prefs.putBoolean(C.SHOW_DOWNLOADABLE, showDownloadable.isChecked());
 553         prefs.commit();
 554     }
 555
 556     class MyListAdapter extends BaseAdapter {
 557
 558         List<DictionaryInfo> dictionariesOnDevice;
 559         List<DictionaryInfo> downloadableDictionaries;
 560
 561         class Row {
 562             DictionaryInfo dictionaryInfo;
 563             boolean onDevice;
 564
 565             private Row(DictionaryInfo dictionaryInfo, boolean onDevice) {
 566                 this.dictionaryInfo = dictionaryInfo;
 567                 this.onDevice = onDevice;
 568             }
 569         }
 570
 571         private MyListAdapter(final String[] filters) {
 572             dictionariesOnDevice = application.getDictionariesOnDevice(filters);
 573             if (showDownloadable.isChecked()) {
 574                 downloadableDictionaries = application.getDownloadableDictionaries(filters);
 575             } else {
 576                 downloadableDictionaries = Collections.emptyList();
 577             }
 578         }
 579
 580         @Override
 581         public int getCount() {
 582             return 2 + dictionariesOnDevice.size() + downloadableDictionaries.size();
 583         }
 584
 585         @Override
 586         public Row getItem(int position) {
 587             if (position == 0) {
 588                 return new Row(null, true);
 589             }
 590             position -= 1;
 591
 592             if (position < dictionariesOnDevice.size()) {
 593                 return new Row(dictionariesOnDevice.get(position), true);
 594             }
 595             position -= dictionariesOnDevice.size();
 596
 597             if (position == 0) {
 598                 return new Row(null, false);
 599             }
 600             position -= 1;
 601
 602             assert position < downloadableDictionaries.size();
 603             return new Row(downloadableDictionaries.get(position), false);
 604         }
 605
 606         @Override
 607         public long getItemId(int position) {
 608             return position;
 609         }
 610
 611         @Override
 612         public int getViewTypeCount() {
 613             return 3;
 614         }
 615
 616         @Override
 617         public int getItemViewType(int position) {
 618             final Row row = getItem(position);
 619             if (row.dictionaryInfo == null) {
 620                 return row.onDevice ? 0 : 1;
 621             }
 622             assert row.dictionaryInfo.indexInfos.size() <= 2;
 623             return 2;
 624         }
 625
 626         @Override
 627         public View getView(int position, View convertView, ViewGroup parent) {
 628             if (convertView == dictionariesOnDeviceHeaderRow ||
 629                 convertView == downloadableDictionariesHeaderRow) {
 630                 return convertView;
 631             }
 632
 633             final Row row = getItem(position);
 634
 635             if (row.dictionaryInfo == null) {
 636                 assert convertView == null;
 637                 return row.onDevice ? dictionariesOnDeviceHeaderRow : downloadableDictionariesHeaderRow;
 638             }
 639             return createDictionaryRow(row.dictionaryInfo, parent, convertView, row.onDevice);
 640         }
 641
 642     }
 643
 644     private void setMyListAdapater() {
 645         final String filter = filterSearchView == null ? "" : filterSearchView.getQuery()
 646                               .toString();
 647         final String[] filters = filter.trim().toLowerCase().split("(\\s|-)+");
 648         setListAdapter(new MyListAdapter(filters));
 649     }
 650
 651     private View createDictionaryRow(final DictionaryInfo dictionaryInfo,
 652                                      final ViewGroup parent, View row, boolean canLaunch) {
 653
 654         if (row == null) {
 655             row = LayoutInflater.from(parent.getContext()).inflate(
 656                        R.layout.dictionary_manager_row, parent, false);
 657         }
 658         final TextView name = (TextView) row.findViewById(R.id.dictionaryName);
 659         final TextView details = (TextView) row.findViewById(R.id.dictionaryDetails);
 660         name.setText(application.getDictionaryName(dictionaryInfo.uncompressedFilename));
 661
 662         final boolean updateAvailable = application.updateAvailable(dictionaryInfo);
 663         final Button downloadButton = (Button) row.findViewById(R.id.downloadButton);
 664         final DictionaryInfo downloadable = application.getDownloadable(dictionaryInfo.uncompressedFilename);
 665         boolean broken = false;
 666         if (!dictionaryInfo.isValid()) {
 667             broken = true;
 668             canLaunch = false;
 669         }
 670         if (downloadable != null && (!canLaunch || updateAvailable)) {
 671             downloadButton
 672             .setText(getString(
 673                          R.string.downloadButton,
 674                          downloadable.zipBytes / 1024.0 / 1024.0));
 675             downloadButton.setMinWidth(application.languageButtonPixels * 3 / 2);
 676             downloadButton.setOnClickListener(new OnClickListener() {
 677                 @Override
 678                 public void onClick(View arg0) {
 679                     downloadDictionary(downloadable.downloadUrl, downloadable.zipBytes, downloadButton);
 680                 }
 681             });
 682             downloadButton.setVisibility(View.VISIBLE);
 683         } else {
 684             downloadButton.setVisibility(View.GONE);
 685         }
 686
 687         LinearLayout buttons = (LinearLayout) row.findViewById(R.id.dictionaryLauncherButtons);
 688
 689         final List<IndexInfo> sortedIndexInfos = application
 690                 .sortedIndexInfos(dictionaryInfo.indexInfos);
 691         final StringBuilder builder = new StringBuilder();
 692         if (updateAvailable) {
 693             builder.append(getString(R.string.updateAvailable));
 694         }
 695         assert buttons.getChildCount() == 4;
 696         for (int i = 0; i < 2; i++) {
 697             final Button textButton = (Button)buttons.getChildAt(2*i);
 698             final ImageButton imageButton = (ImageButton)buttons.getChildAt(2*i + 1);
 699             if (i >= sortedIndexInfos.size()) {
 700                 textButton.setVisibility(View.GONE);
 701                 imageButton.setVisibility(View.GONE);
 702                 continue;
 703             }
 704             final IndexInfo indexInfo = sortedIndexInfos.get(i);
 705             final View button = IsoUtils.INSTANCE.setupButton(textButton, imageButton, dictionaryInfo,
 706                                 indexInfo, application.languageButtonPixels);
 707
 708             if (canLaunch) {
 709                 button.setOnClickListener(
 710                     new IntentLauncher(buttons.getContext(),
 711                                        DictionaryActivity.getLaunchIntent(getApplicationContext(),
 712                                                application.getPath(dictionaryInfo.uncompressedFilename),
 713                                                indexInfo.shortName, "")));
 714
 715             }
 716             button.setEnabled(canLaunch);
 717             button.setFocusable(canLaunch);
 718             if (builder.length() != 0) {
 719                 builder.append("; ");
 720             }
 721             builder.append(getString(R.string.indexInfo, indexInfo.shortName,
 722                                      indexInfo.mainTokenCount));
 723         }
 724         builder.append("; ");
 725         builder.append(getString(R.string.downloadButton, dictionaryInfo.uncompressedBytes / 1024.0 / 1024.0));
 726         if (broken) {
 727             name.setText("Broken: " + application.getDictionaryName(dictionaryInfo.uncompressedFilename));
 728             builder.append("; Cannot be used, redownload, check hardware/file system");
 729         }
 730         details.setText(builder.toString());
 731
 732         if (canLaunch) {
 733             row.setOnClickListener(new IntentLauncher(parent.getContext(),
 734                                    DictionaryActivity.getLaunchIntent(getApplicationContext(),
 735                                            application.getPath(dictionaryInfo.uncompressedFilename),
 736                                            dictionaryInfo.indexInfos.get(0).shortName, "")));
 737             // do not setFocusable, for keyboard navigation
 738             // offering only the index buttons is better.
 739         }
 740         row.setClickable(canLaunch);
 741         // Allow deleting, even if we cannot open
 742         row.setLongClickable(broken || canLaunch);
 743         row.setBackgroundResource(android.R.drawable.menuitem_background);
 744
 745         return row;
 746     }
 747
 748     private synchronized void downloadDictionary(final String downloadUrl, long bytes, Button downloadButton) {
 749         String destFile;
 750         try {
 751             destFile = new File(new URL(downloadUrl).getPath()).getName();
 752         } catch (MalformedURLException e) {
 753             throw new RuntimeException("Invalid download URL!", e);
 754         }
 755         DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 756         final DownloadManager.Query query = new DownloadManager.Query();
 757         query.setFilterByStatus(DownloadManager.STATUS_PAUSED | DownloadManager.STATUS_PENDING | DownloadManager.STATUS_RUNNING);
 758         final Cursor cursor = downloadManager.query(query);
 759
 760         // Due to a bug, cursor is null instead of empty when
 761         // the download manager is disabled.
 762         if (cursor == null) {
 763             String msg = getString(R.string.downloadManagerQueryFailed);
 764             new AlertDialog.Builder(DictionaryManagerActivity.this).setTitle(getString(R.string.error))
 765             .setMessage(getString(R.string.downloadFailed, msg))
 766             .setNeutralButton("Close", null).show();
 767             return;
 768         }
 769
 770         while (cursor.moveToNext()) {
 771             if (downloadUrl.equals(cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_URI))))
 772                 break;
 773             if (destFile.equals(cursor.getString(cursor.getColumnIndex(DownloadManager.COLUMN_TITLE))))
 774                 break;
 775         }
 776         if (!cursor.isAfterLast()) {
 777             downloadManager.remove(cursor.getLong(cursor.getColumnIndex(DownloadManager.COLUMN_ID)));
 778             downloadButton
 779             .setText(getString(
 780                          R.string.downloadButton,
 781                          bytes / 1024.0 / 1024.0));
 782             cursor.close();
 783             return;
 784         }
 785         cursor.close();
 786         Request request = new Request(
 787             Uri.parse(downloadUrl));
 788
 789         Log.d(LOG, "Downloading to: " + destFile);
 790         request.setTitle(destFile);
 791
 792         File destFilePath = new File(application.getDictDir(), destFile);
 793         destFilePath.delete();
 794         try {
 795             request.setDestinationUri(Uri.fromFile(destFilePath));
 796         } catch (Exception e) {
 797         }
 798
 799         try {
 800             downloadManager.enqueue(request);
 801         } catch (SecurityException e) {
 802             request = new Request(Uri.parse(downloadUrl));
 803             request.setTitle(destFile);
 804             downloadManager.enqueue(request);
 805         }
 806         Log.w(LOG, "Download started: " + destFile);
 807         downloadButton.setText("X");
 808     }
 809
 810 }