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.app.AlertDialog;
  18 import android.app.DownloadManager;
  19 import android.app.DownloadManager.Request;
  20 import android.content.BroadcastReceiver;
  21 import android.content.Context;
  22 import android.content.Intent;
  23 import android.content.IntentFilter;
  24 import android.content.SharedPreferences;
  25 import android.content.SharedPreferences.Editor;
  26 import android.database.Cursor;
  27 import android.net.Uri;
  28 import android.os.Bundle;
  29 import android.os.Environment;
  30 import android.os.Handler;
  31 import android.preference.PreferenceManager;
  32 import android.util.Log;
  33 import android.util.TypedValue;
  34 import android.view.ContextMenu;
  35 import android.view.ContextMenu.ContextMenuInfo;
  36 import android.view.LayoutInflater;
  37 import android.view.View;
  38 import android.view.View.OnClickListener;
  39 import android.view.ViewGroup;
  40 import android.view.inputmethod.EditorInfo;
  41 import android.widget.AdapterView.AdapterContextMenuInfo;
  42 import android.widget.BaseAdapter;
  43 import android.widget.Button;
  44 import android.widget.CompoundButton;
  45 import android.widget.CompoundButton.OnCheckedChangeListener;
  46 import android.widget.FrameLayout;
  47 import android.widget.LinearLayout;
  48 import android.widget.TextView;
  49 import android.widget.Toast;
  50 import android.widget.ToggleButton;
  51
  52 import com.actionbarsherlock.app.ActionBar;
  53 import com.actionbarsherlock.app.SherlockListActivity;
  54 import com.actionbarsherlock.view.Menu;
  55 import com.actionbarsherlock.widget.SearchView;
  56 import com.actionbarsherlock.widget.SearchView.OnQueryTextListener;
  57 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  58 import com.hughes.android.util.IntentLauncher;
  59
  60 import java.io.File;
  61 import java.io.FileOutputStream;
  62 import java.io.IOException;
  63 import java.io.InputStream;
  64 import java.io.OutputStream;
  65 import java.net.MalformedURLException;
  66 import java.net.URL;
  67 import java.util.Collections;
  68 import java.util.List;
  69 import java.util.zip.ZipEntry;
  70 import java.util.zip.ZipFile;
  71
  72 // Right-click:
  73 //  Delete, move to top.
  74
  75 public class DictionaryManagerActivity extends SherlockListActivity {
  76
  77     static final String LOG = "QuickDic";
  78     static boolean blockAutoLaunch = false;
  79
  80     DictionaryApplication application;
  81
  82     SearchView filterSearchView;
  83     ToggleButton showDownloadable;
  84
  85     LinearLayout dictionariesOnDeviceHeaderRow;
  86     LinearLayout downloadableDictionariesHeaderRow;
  87
  88     Handler uiHandler;
  89
  90     Runnable dictionaryUpdater = new Runnable() {
  91         @Override
  92         public void run() {
  93             if (uiHandler == null) {
  94                 return;
  95             }
  96             uiHandler.post(new Runnable() {
  97                 @Override
  98                 public void run() {
  99                     setListAdapater();
 100                 }
 101             });
 102         }
 103     };
 104
 105     final BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
 106         @Override
 107         public void onReceive(Context context, Intent intent) {
 108             final String action = intent.getAction();
 109
 110             if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {
 111                 final long downloadId = intent.getLongExtra(
 112                         DownloadManager.EXTRA_DOWNLOAD_ID, 0);
 113                 final DownloadManager.Query query = new DownloadManager.Query();
 114                 query.setFilterById(downloadId);
 115                 final DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 116                 final Cursor cursor = downloadManager.query(query);
 117
 118                 if (!cursor.moveToFirst()) {
 119                     Log.e(LOG, "Couldn't find download.");
 120                     return;
 121                 }
 122
 123                 final String dest = cursor
 124                         .getString(cursor.getColumnIndex(DownloadManager.COLUMN_LOCAL_URI));
 125                 final int status = cursor
 126                         .getInt(cursor
 127                                 .getColumnIndex(DownloadManager.COLUMN_STATUS));
 128                 if (DownloadManager.STATUS_SUCCESSFUL != status) {
 129                     Log.w(LOG,
 130                             "Download failed: status=" + status +
 131                                     ", reason=" + cursor.getString(cursor
 132                                             .getColumnIndex(DownloadManager.COLUMN_REASON)));
 133                     Toast.makeText(context, getString(R.string.downloadFailed, dest),
 134                             Toast.LENGTH_LONG).show();
 135                     return;
 136                 }
 137
 138                 Log.w(LOG, "Download finished: " + dest);
 139                 Toast.makeText(context, getString(R.string.unzippingDictionary, dest),
 140                         Toast.LENGTH_LONG).show();
 141
 142
 143                 final File localZipFile = new File(Uri.parse(dest).getPath());
 144                 try {
 145                     ZipFile zipFile = new ZipFile(localZipFile);
 146                     final ZipEntry zipEntry = zipFile.entries().nextElement();
 147                     Log.d(LOG, "Unzipping entry: " + zipEntry.getName());
 148                     final InputStream zipIn = zipFile.getInputStream(zipEntry);
 149                     File targetFile = new File(application.getDictDir(), zipEntry.getName());
 150                     if (targetFile.exists()) {
 151                         targetFile.renameTo(new File(targetFile.getAbsolutePath().replace(".quickdic", "bak.quickdic")));
 152                         targetFile = new File(application.getDictDir(), zipEntry.getName());
 153                     }
 154                     final OutputStream zipOut = new FileOutputStream(targetFile);
 155                     copyStream(zipIn, zipOut);
 156                     zipFile.close();
 157                     application.backgroundUpdateDictionaries(dictionaryUpdater);
 158                     Toast.makeText(context, getString(R.string.installationFinished, dest),
 159                             Toast.LENGTH_LONG).show();
 160                 } catch (Exception e) {
 161                     Toast.makeText(context, getString(R.string.unzippingFailed, dest),
 162                             Toast.LENGTH_LONG).show();
 163                     Log.e(LOG, "Failed to unzip.", e);
 164                 } finally {
 165                     localZipFile.delete();
 166                 }
 167             }
 168         }
 169     };
 170
 171     public static Intent getLaunchIntent() {
 172         final Intent intent = new Intent();
 173         intent.setClassName(DictionaryManagerActivity.class.getPackage().getName(),
 174                 DictionaryManagerActivity.class.getName());
 175         intent.putExtra(C.CAN_AUTO_LAUNCH_DICT, false);
 176         return intent;
 177     }
 178
 179     @Override
 180     public void onCreate(Bundle savedInstanceState) {
 181         setTheme(((DictionaryApplication) getApplication()).getSelectedTheme().themeId);
 182
 183         super.onCreate(savedInstanceState);
 184         Log.d(LOG, "onCreate:" + this);
 185
 186         application = (DictionaryApplication) getApplication();
 187
 188         blockAutoLaunch = false;
 189
 190         // UI init.
 191         setContentView(R.layout.dictionary_manager_activity);
 192
 193         dictionariesOnDeviceHeaderRow = (LinearLayout) LayoutInflater.from(
 194                 getListView().getContext()).inflate(
 195                 R.layout.dictionary_manager_header_row_on_device, getListView(), false);
 196
 197         downloadableDictionariesHeaderRow = (LinearLayout) LayoutInflater.from(
 198                 getListView().getContext()).inflate(
 199                 R.layout.dictionary_manager_header_row_downloadable, getListView(), false);
 200
 201         showDownloadable = (ToggleButton) downloadableDictionariesHeaderRow
 202                 .findViewById(R.id.hideDownloadable);
 203         showDownloadable.setOnCheckedChangeListener(new OnCheckedChangeListener() {
 204             @Override
 205             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 206                 onShowLocalChanged();
 207             }
 208         });
 209
 210         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 211         final String thanksForUpdatingLatestVersion = getString(R.string.thanksForUpdatingVersion);
 212         if (!prefs.getString(C.THANKS_FOR_UPDATING_VERSION, "").equals(
 213                 thanksForUpdatingLatestVersion)) {
 214             blockAutoLaunch = true;
 215             startActivity(HtmlDisplayActivity.getWhatsNewLaunchIntent());
 216             prefs.edit().putString(C.THANKS_FOR_UPDATING_VERSION, thanksForUpdatingLatestVersion)
 217                     .commit();
 218         }
 219
 220         registerReceiver(broadcastReceiver, new IntentFilter(
 221                 DownloadManager.ACTION_DOWNLOAD_COMPLETE));
 222
 223         setListAdapater();
 224         registerForContextMenu(getListView());
 225
 226         final File dictDir = application.getDictDir();
 227         if (!dictDir.canRead() || !dictDir.canExecute()) {
 228             blockAutoLaunch = true;
 229
 230             AlertDialog.Builder builder = new AlertDialog.Builder(getListView().getContext());
 231             builder.setTitle(getString(R.string.error));
 232             builder.setMessage(getString(
 233                     R.string.unableToReadDictionaryDir,
 234                     dictDir.getAbsolutePath(),
 235                     Environment.getExternalStorageDirectory()));
 236             builder.create().show();
 237         }
 238
 239         onCreateSetupActionBar();
 240     }
 241
 242     private void onCreateSetupActionBar() {
 243         ActionBar actionBar = getSupportActionBar();
 244         actionBar.setDisplayShowTitleEnabled(false);
 245
 246         filterSearchView = new SearchView(getSupportActionBar().getThemedContext());
 247         filterSearchView.setIconifiedByDefault(false);
 248         // filterSearchView.setIconified(false); // puts the magnifying glass in
 249         // the
 250         // wrong place.
 251         filterSearchView.setQueryHint(getString(R.string.searchText));
 252         filterSearchView.setSubmitButtonEnabled(false);
 253         final int width = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 300,
 254                 getResources().getDisplayMetrics());
 255         FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(width,
 256                 FrameLayout.LayoutParams.WRAP_CONTENT);
 257         filterSearchView.setLayoutParams(lp);
 258         filterSearchView.setImeOptions(
 259                 EditorInfo.IME_ACTION_SEARCH |
 260                         EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 261                         EditorInfo.IME_FLAG_NO_ENTER_ACTION |
 262                         // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 263                         // 11
 264                         EditorInfo.IME_MASK_ACTION |
 265                         EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 266
 267         filterSearchView.setOnQueryTextListener(new OnQueryTextListener() {
 268             @Override
 269             public boolean onQueryTextSubmit(String query) {
 270                 return true;
 271             }
 272
 273             @Override
 274             public boolean onQueryTextChange(String filterText) {
 275                 setListAdapater();
 276                 return true;
 277             }
 278         });
 279         filterSearchView.setFocusable(true);
 280
 281         actionBar.setCustomView(filterSearchView);
 282         actionBar.setDisplayShowCustomEnabled(true);
 283     }
 284
 285     @Override
 286     public void onDestroy() {
 287         super.onDestroy();
 288         unregisterReceiver(broadcastReceiver);
 289     }
 290
 291     private static int copyStream(final InputStream in, final OutputStream out)
 292             throws IOException {
 293         int bytesRead;
 294         final byte[] bytes = new byte[1024 * 16];
 295         while ((bytesRead = in.read(bytes)) != -1) {
 296             out.write(bytes, 0, bytesRead);
 297         }
 298         in.close();
 299         out.close();
 300         return bytesRead;
 301     }
 302
 303     @Override
 304     protected void onStart() {
 305         super.onStart();
 306         uiHandler = new Handler();
 307     }
 308
 309     @Override
 310     protected void onStop() {
 311         super.onStop();
 312         uiHandler = null;
 313     }
 314
 315     @Override
 316     protected void onResume() {
 317         super.onResume();
 318
 319         if (PreferenceActivity.prefsMightHaveChanged) {
 320             PreferenceActivity.prefsMightHaveChanged = false;
 321             finish();
 322             startActivity(getIntent());
 323         }
 324
 325         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 326         showDownloadable.setChecked(prefs.getBoolean(C.SHOW_DOWNLOADABLE, false));
 327
 328         if (!blockAutoLaunch &&
 329                 getIntent().getBooleanExtra(C.CAN_AUTO_LAUNCH_DICT, true) &&
 330                 prefs.contains(C.DICT_FILE) &&
 331                 prefs.contains(C.INDEX_SHORT_NAME)) {
 332             Log.d(LOG, "Skipping DictionaryManager, going straight to dictionary.");
 333             startActivity(DictionaryActivity.getLaunchIntent(
 334                     new File(prefs.getString(C.DICT_FILE, "")),
 335                     prefs.getString(C.INDEX_SHORT_NAME, ""),
 336                     prefs.getString(C.SEARCH_TOKEN, "")));
 337             finish();
 338             return;
 339         }
 340
 341         // Remove the active dictionary from the prefs so we won't autolaunch
 342         // next time.
 343         final Editor editor = prefs.edit();
 344         editor.remove(C.DICT_FILE);
 345         editor.remove(C.INDEX_SHORT_NAME);
 346         editor.remove(C.SEARCH_TOKEN);
 347         editor.commit();
 348
 349         application.backgroundUpdateDictionaries(dictionaryUpdater);
 350
 351         setListAdapater();
 352     }
 353
 354     @Override
 355     public boolean onCreateOptionsMenu(final Menu menu) {
 356         application.onCreateGlobalOptionsMenu(this, menu);
 357         return true;
 358     }
 359
 360     @Override
 361     public void onCreateContextMenu(final ContextMenu menu, final View view,
 362             final ContextMenuInfo menuInfo) {
 363         super.onCreateContextMenu(menu, view, menuInfo);
 364         Log.d(LOG, "onCreateContextMenu, " + menuInfo);
 365
 366         final AdapterContextMenuInfo adapterContextMenuInfo =
 367                 (AdapterContextMenuInfo) menuInfo;
 368         final int position = adapterContextMenuInfo.position;
 369         final MyListAdapter.Row row = (MyListAdapter.Row) getListAdapter().getItem(position);
 370
 371         if (row.dictionaryInfo == null) {
 372             return;
 373         }
 374
 375         if (position > 0 && row.onDevice) {
 376             final android.view.MenuItem moveToTopMenuItem =
 377                     menu.add(R.string.moveToTop);
 378             moveToTopMenuItem.setOnMenuItemClickListener(new
 379                     android.view.MenuItem.OnMenuItemClickListener() {
 380                         @Override
 381                         public boolean onMenuItemClick(android.view.MenuItem item) {
 382                             application.moveDictionaryToTop(row.dictionaryInfo);
 383                             setListAdapater();
 384                             return true;
 385                         }
 386                     });
 387         }
 388
 389         if (row.onDevice) {
 390             final android.view.MenuItem deleteMenuItem = menu.add(R.string.deleteDictionary);
 391             deleteMenuItem
 392                     .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 393                         @Override
 394                         public boolean onMenuItemClick(android.view.MenuItem item) {
 395                             application.deleteDictionary(row.dictionaryInfo);
 396                             setListAdapater();
 397                             return true;
 398                         }
 399                     });
 400         }
 401     }
 402
 403     private void onShowLocalChanged() {
 404         setListAdapater();
 405         Editor prefs = PreferenceManager.getDefaultSharedPreferences(this).edit();
 406         prefs.putBoolean(C.SHOW_DOWNLOADABLE, showDownloadable.isChecked());
 407         prefs.commit();
 408     }
 409
 410     class MyListAdapter extends BaseAdapter {
 411
 412         List<DictionaryInfo> dictionariesOnDevice;
 413         List<DictionaryInfo> downloadableDictionaries;
 414
 415         class Row {
 416             DictionaryInfo dictionaryInfo;
 417             boolean onDevice;
 418
 419             private Row(DictionaryInfo dictinoaryInfo, boolean onDevice) {
 420                 this.dictionaryInfo = dictinoaryInfo;
 421                 this.onDevice = onDevice;
 422             }
 423         }
 424
 425         private MyListAdapter(final String[] filters) {
 426             dictionariesOnDevice = application.getDictionariesOnDevice(filters);
 427             if (showDownloadable.isChecked()) {
 428                 downloadableDictionaries = application.getDownloadableDictionaries(filters);
 429             } else {
 430                 downloadableDictionaries = Collections.emptyList();
 431             }
 432         }
 433
 434         @Override
 435         public int getCount() {
 436             return 2 + dictionariesOnDevice.size() + downloadableDictionaries.size();
 437         }
 438
 439         @Override
 440         public Row getItem(int position) {
 441             if (position == 0) {
 442                 return new Row(null, true);
 443             }
 444             position -= 1;
 445
 446             if (position < dictionariesOnDevice.size()) {
 447                 return new Row(dictionariesOnDevice.get(position), true);
 448             }
 449             position -= dictionariesOnDevice.size();
 450
 451             if (position == 0) {
 452                 return new Row(null, false);
 453             }
 454             position -= 1;
 455
 456             assert position < downloadableDictionaries.size();
 457             return new Row(downloadableDictionaries.get(position), false);
 458         }
 459
 460         @Override
 461         public long getItemId(int position) {
 462             return position;
 463         }
 464
 465         @Override
 466         public View getView(int position, View convertView, ViewGroup parent) {
 467             if (convertView instanceof LinearLayout &&
 468                     convertView != dictionariesOnDeviceHeaderRow &&
 469                     convertView != downloadableDictionariesHeaderRow) {
 470                 /*
 471                  * This is done to try to avoid leaking memory that used to
 472                  * happen on Android 4.0.3
 473                  */
 474                 ((LinearLayout) convertView).removeAllViews();
 475             }
 476
 477             final Row row = getItem(position);
 478
 479             if (row.onDevice) {
 480                 if (row.dictionaryInfo == null) {
 481                     return dictionariesOnDeviceHeaderRow;
 482                 }
 483                 return createDictionaryRow(row.dictionaryInfo, parent, true);
 484             }
 485
 486             if (row.dictionaryInfo == null) {
 487                 return downloadableDictionariesHeaderRow;
 488             }
 489             return createDictionaryRow(row.dictionaryInfo, parent, false);
 490         }
 491
 492     }
 493
 494     private void setListAdapater() {
 495         final String filter = filterSearchView == null ? "" : filterSearchView.getQuery()
 496                 .toString();
 497         final String[] filters = filter.trim().toLowerCase().split("(\\s|-)+");
 498         setListAdapter(new MyListAdapter(filters));
 499     }
 500
 501     private View createDictionaryRow(final DictionaryInfo dictionaryInfo,
 502             final ViewGroup parent, final boolean canLaunch) {
 503
 504         View row = LayoutInflater.from(parent.getContext()).inflate(
 505                 R.layout.dictionary_manager_row, parent, false);
 506         final TextView name = (TextView) row.findViewById(R.id.dictionaryName);
 507         final TextView details = (TextView) row.findViewById(R.id.dictionaryDetails);
 508         name.setText(application.getDictionaryName(dictionaryInfo.uncompressedFilename));
 509
 510         final boolean updateAvailable = application.updateAvailable(dictionaryInfo);
 511         final Button downloadButton = (Button) row.findViewById(R.id.downloadButton);
 512         if (!canLaunch || updateAvailable) {
 513             downloadButton
 514                     .setText(getString(
 515                             R.string.downloadButton,
 516                             application.getDownloadable(dictionaryInfo.uncompressedFilename).zipBytes / 1024.0 / 1024.0));
 517             downloadButton.setMinWidth(application.languageButtonPixels * 3 / 2);
 518             downloadButton.setOnClickListener(new OnClickListener() {
 519                 @Override
 520                 public void onClick(View arg0) {
 521                     downloadDictionary(dictionaryInfo);
 522                 }
 523             });
 524         } else {
 525             downloadButton.setVisibility(View.INVISIBLE);
 526         }
 527
 528         LinearLayout buttons = (LinearLayout) row.findViewById(R.id.dictionaryLauncherButtons);
 529         final List<IndexInfo> sortedIndexInfos = application
 530                 .sortedIndexInfos(dictionaryInfo.indexInfos);
 531         final StringBuilder builder = new StringBuilder();
 532         if (updateAvailable) {
 533             builder.append(getString(R.string.updateAvailable));
 534         }
 535         for (IndexInfo indexInfo : sortedIndexInfos) {
 536             final View button = application.createButton(buttons.getContext(), dictionaryInfo,
 537                     indexInfo);
 538             buttons.addView(button);
 539
 540             if (canLaunch) {
 541                 button.setOnClickListener(
 542                         new IntentLauncher(buttons.getContext(),
 543                                 DictionaryActivity.getLaunchIntent(
 544                                         application.getPath(dictionaryInfo.uncompressedFilename),
 545                                         indexInfo.shortName, "")));
 546
 547             } else {
 548                 button.setEnabled(false);
 549             }
 550             if (builder.length() != 0) {
 551                 builder.append("; ");
 552             }
 553             builder.append(getString(R.string.indexInfo, indexInfo.shortName,
 554                     indexInfo.mainTokenCount));
 555         }
 556         details.setText(builder.toString());
 557
 558         if (canLaunch) {
 559             row.setClickable(true);
 560             row.setOnClickListener(new IntentLauncher(parent.getContext(),
 561                     DictionaryActivity.getLaunchIntent(
 562                             application.getPath(dictionaryInfo.uncompressedFilename),
 563                             dictionaryInfo.indexInfos.get(0).shortName, "")));
 564             row.setFocusable(true);
 565             row.setLongClickable(true);
 566         }
 567         row.setBackgroundResource(android.R.drawable.menuitem_background);
 568
 569         return row;
 570     }
 571
 572     private void downloadDictionary(final DictionaryInfo dictionaryInfo) {
 573         DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 574         Request request = new Request(
 575                 Uri.parse(dictionaryInfo.downloadUrl));
 576         try {
 577             final String destFile = new File(new URL(dictionaryInfo.downloadUrl).getFile())
 578                     .getName();
 579             Log.d(LOG, "Downloading to: " + destFile);
 580
 581             request.setDestinationUri(Uri.fromFile(new File(Environment
 582                     .getExternalStorageDirectory(), destFile)));
 583         } catch (MalformedURLException e) {
 584             throw new RuntimeException(e);
 585         }
 586         downloadManager.enqueue(request);
 587     }
 588
 589 }