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.support.v7.app.ActionBar;
  33 import android.support.v7.app.ActionBarActivity;
  34 import android.support.v7.widget.SearchView;
  35 import android.support.v7.widget.SearchView.OnQueryTextListener;
  36 import android.util.Log;
  37 import android.util.TypedValue;
  38 import android.view.ContextMenu;
  39 import android.view.ContextMenu.ContextMenuInfo;
  40 import android.view.LayoutInflater;
  41 import android.view.Menu;
  42 import android.view.View;
  43 import android.view.View.OnClickListener;
  44 import android.view.ViewGroup;
  45 import android.view.inputmethod.EditorInfo;
  46 import android.widget.AdapterView.AdapterContextMenuInfo;
  47 import android.widget.BaseAdapter;
  48 import android.widget.Button;
  49 import android.widget.CompoundButton;
  50 import android.widget.CompoundButton.OnCheckedChangeListener;
  51 import android.widget.FrameLayout;
  52 import android.widget.LinearLayout;
  53 import android.widget.ListAdapter;
  54 import android.widget.ListView;
  55 import android.widget.TextView;
  56 import android.widget.Toast;
  57 import android.widget.ToggleButton;
  58
  59 import com.hughes.android.dictionary.DictionaryInfo.IndexInfo;
  60 import com.hughes.android.util.IntentLauncher;
  61
  62 import java.io.File;
  63 import java.io.FileOutputStream;
  64 import java.io.IOException;
  65 import java.io.InputStream;
  66 import java.io.OutputStream;
  67 import java.net.MalformedURLException;
  68 import java.net.URL;
  69 import java.util.Collections;
  70 import java.util.List;
  71 import java.util.zip.ZipEntry;
  72 import java.util.zip.ZipFile;
  73
  74 // Right-click:
  75 //  Delete, move to top.
  76
  77 public class DictionaryManagerActivity extends ActionBarActivity {
  78
  79     static final String LOG = "QuickDic";
  80     static boolean blockAutoLaunch = false;
  81
  82     private ListView listView;
  83     private ListView getListView() {
  84         if (listView == null) {
  85             listView = (ListView)findViewById(android.R.id.list);
  86         }
  87         return listView;
  88     }
  89     private void setListAdapter(ListAdapter adapter) {
  90         getListView().setAdapter(adapter);
  91     }
  92     private ListAdapter getListAdapter() {
  93         return getListView().getAdapter();
  94     }
  95
  96     DictionaryApplication application;
  97
  98     SearchView filterSearchView;
  99     ToggleButton showDownloadable;
 100
 101     LinearLayout dictionariesOnDeviceHeaderRow;
 102     LinearLayout downloadableDictionariesHeaderRow;
 103
 104     Handler uiHandler;
 105
 106     Runnable dictionaryUpdater = new Runnable() {
 107         @Override
 108         public void run() {
 109             if (uiHandler == null) {
 110                 return;
 111             }
 112             uiHandler.post(new Runnable() {
 113                 @Override
 114                 public void run() {
 115                     setMyListAdapater();
 116                 }
 117             });
 118         }
 119     };
 120
 121     final BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
 122         @Override
 123         public void onReceive(Context context, Intent intent) {
 124             final String action = intent.getAction();
 125
 126             if (DownloadManager.ACTION_DOWNLOAD_COMPLETE.equals(action)) {
 127                 final long downloadId = intent.getLongExtra(
 128                         DownloadManager.EXTRA_DOWNLOAD_ID, 0);
 129                 final DownloadManager.Query query = new DownloadManager.Query();
 130                 query.setFilterById(downloadId);
 131                 final DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 132                 final Cursor cursor = downloadManager.query(query);
 133
 134                 if (!cursor.moveToFirst()) {
 135                     Log.e(LOG, "Couldn't find download.");
 136                     return;
 137                 }
 138
 139                 final String dest = cursor
 140                         .getString(cursor.getColumnIndex(DownloadManager.COLUMN_LOCAL_URI));
 141                 final int status = cursor
 142                         .getInt(cursor
 143                                 .getColumnIndex(DownloadManager.COLUMN_STATUS));
 144                 if (DownloadManager.STATUS_SUCCESSFUL != status) {
 145                     Log.w(LOG,
 146                             "Download failed: status=" + status +
 147                                     ", reason=" + cursor.getString(cursor
 148                                             .getColumnIndex(DownloadManager.COLUMN_REASON)));
 149                     new AlertDialog.Builder(context).setTitle(getString(R.string.error)).setMessage(getString(R.string.downloadFailed, dest)).setNeutralButton("Close", null).show();
 150                     return;
 151                 }
 152
 153                 Log.w(LOG, "Download finished: " + dest);
 154                 Toast.makeText(context, getString(R.string.unzippingDictionary, dest),
 155                         Toast.LENGTH_LONG).show();
 156
 157
 158                 final File localZipFile = new File(Uri.parse(dest).getPath());
 159                 try {
 160                     ZipFile zipFile = new ZipFile(localZipFile);
 161                     final ZipEntry zipEntry = zipFile.entries().nextElement();
 162                     Log.d(LOG, "Unzipping entry: " + zipEntry.getName());
 163                     final InputStream zipIn = zipFile.getInputStream(zipEntry);
 164                     File targetFile = new File(application.getDictDir(), zipEntry.getName());
 165                     if (targetFile.exists()) {
 166                         targetFile.renameTo(new File(targetFile.getAbsolutePath().replace(".quickdic", ".bak.quickdic")));
 167                         targetFile = new File(application.getDictDir(), zipEntry.getName());
 168                     }
 169                     final OutputStream zipOut = new FileOutputStream(targetFile);
 170                     copyStream(zipIn, zipOut);
 171                     zipFile.close();
 172                     application.backgroundUpdateDictionaries(dictionaryUpdater);
 173                     Toast.makeText(context, getString(R.string.installationFinished, dest),
 174                             Toast.LENGTH_LONG).show();
 175                 } catch (Exception e) {
 176                     new AlertDialog.Builder(context).setTitle(getString(R.string.error)).setMessage(getString(R.string.unzippingFailed, dest)).setNeutralButton("Close", null).show();
 177                     Log.e(LOG, "Failed to unzip.", e);
 178                 } finally {
 179                     localZipFile.delete();
 180                 }
 181             }
 182         }
 183     };
 184
 185     public static Intent getLaunchIntent(Context c) {
 186         final Intent intent = new Intent(c, DictionaryManagerActivity.class);
 187         intent.putExtra(C.CAN_AUTO_LAUNCH_DICT, false);
 188         return intent;
 189     }
 190
 191     @Override
 192     public void onCreate(Bundle savedInstanceState) {
 193         // This must be first, otherwise the actiona bar doesn't get
 194         // styled properly.
 195         setTheme(((DictionaryApplication) getApplication()).getSelectedTheme().themeId);
 196
 197         super.onCreate(savedInstanceState);
 198         Log.d(LOG, "onCreate:" + this);
 199
 200         application = (DictionaryApplication) getApplication();
 201
 202         blockAutoLaunch = false;
 203
 204         // UI init.
 205         setContentView(R.layout.dictionary_manager_activity);
 206
 207         dictionariesOnDeviceHeaderRow = (LinearLayout) LayoutInflater.from(
 208                 getListView().getContext()).inflate(
 209                 R.layout.dictionary_manager_header_row_on_device, getListView(), false);
 210
 211         downloadableDictionariesHeaderRow = (LinearLayout) LayoutInflater.from(
 212                 getListView().getContext()).inflate(
 213                 R.layout.dictionary_manager_header_row_downloadable, getListView(), false);
 214
 215         showDownloadable = (ToggleButton) downloadableDictionariesHeaderRow
 216                 .findViewById(R.id.hideDownloadable);
 217         showDownloadable.setOnCheckedChangeListener(new OnCheckedChangeListener() {
 218             @Override
 219             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 220                 onShowDownloadableChanged();
 221             }
 222         });
 223
 224         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 225         final String thanksForUpdatingLatestVersion = getString(R.string.thanksForUpdatingVersion);
 226         if (!prefs.getString(C.THANKS_FOR_UPDATING_VERSION, "").equals(
 227                 thanksForUpdatingLatestVersion)) {
 228             blockAutoLaunch = true;
 229             startActivity(HtmlDisplayActivity.getWhatsNewLaunchIntent(getApplicationContext()));
 230             prefs.edit().putString(C.THANKS_FOR_UPDATING_VERSION, thanksForUpdatingLatestVersion)
 231                     .commit();
 232         }
 233
 234         registerReceiver(broadcastReceiver, new IntentFilter(
 235                 DownloadManager.ACTION_DOWNLOAD_COMPLETE));
 236
 237         setMyListAdapater();
 238         registerForContextMenu(getListView());
 239
 240         final File dictDir = application.getDictDir();
 241         if (!dictDir.canRead() || !dictDir.canExecute()) {
 242             blockAutoLaunch = true;
 243
 244             AlertDialog.Builder builder = new AlertDialog.Builder(getListView().getContext());
 245             builder.setTitle(getString(R.string.error));
 246             builder.setMessage(getString(
 247                     R.string.unableToReadDictionaryDir,
 248                     dictDir.getAbsolutePath(),
 249                     Environment.getExternalStorageDirectory()));
 250             builder.setNeutralButton("Close", null);
 251             builder.create().show();
 252         }
 253
 254         onCreateSetupActionBar();
 255     }
 256
 257     private void onCreateSetupActionBar() {
 258         ActionBar actionBar = getSupportActionBar();
 259         actionBar.setDisplayShowTitleEnabled(false);
 260
 261         filterSearchView = new SearchView(getSupportActionBar().getThemedContext());
 262         filterSearchView.setIconifiedByDefault(false);
 263         // filterSearchView.setIconified(false); // puts the magnifying glass in
 264         // the
 265         // wrong place.
 266         filterSearchView.setQueryHint(getString(R.string.searchText));
 267         filterSearchView.setSubmitButtonEnabled(false);
 268         final int width = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 300,
 269                 getResources().getDisplayMetrics());
 270         FrameLayout.LayoutParams lp = new FrameLayout.LayoutParams(width,
 271                 FrameLayout.LayoutParams.WRAP_CONTENT);
 272         filterSearchView.setLayoutParams(lp);
 273         filterSearchView.setImeOptions(
 274                 EditorInfo.IME_ACTION_SEARCH |
 275                         EditorInfo.IME_FLAG_NO_EXTRACT_UI |
 276                         EditorInfo.IME_FLAG_NO_ENTER_ACTION |
 277                         // EditorInfo.IME_FLAG_NO_FULLSCREEN | // Requires API
 278                         // 11
 279                         EditorInfo.IME_MASK_ACTION |
 280                         EditorInfo.TYPE_TEXT_FLAG_NO_SUGGESTIONS);
 281
 282         filterSearchView.setOnQueryTextListener(new OnQueryTextListener() {
 283             @Override
 284             public boolean onQueryTextSubmit(String query) {
 285                 return true;
 286             }
 287
 288             @Override
 289             public boolean onQueryTextChange(String filterText) {
 290                 setMyListAdapater();
 291                 return true;
 292             }
 293         });
 294         filterSearchView.setFocusable(true);
 295
 296         actionBar.setCustomView(filterSearchView);
 297         actionBar.setDisplayShowCustomEnabled(true);
 298     }
 299
 300     @Override
 301     public void onDestroy() {
 302         super.onDestroy();
 303         unregisterReceiver(broadcastReceiver);
 304     }
 305
 306     private static int copyStream(final InputStream in, final OutputStream out)
 307             throws IOException {
 308         int bytesRead;
 309         final byte[] bytes = new byte[1024 * 16];
 310         while ((bytesRead = in.read(bytes)) != -1) {
 311             out.write(bytes, 0, bytesRead);
 312         }
 313         in.close();
 314         out.close();
 315         return bytesRead;
 316     }
 317
 318     @Override
 319     protected void onStart() {
 320         super.onStart();
 321         uiHandler = new Handler();
 322     }
 323
 324     @Override
 325     protected void onStop() {
 326         super.onStop();
 327         uiHandler = null;
 328     }
 329
 330     @Override
 331     protected void onResume() {
 332         super.onResume();
 333
 334         if (PreferenceActivity.prefsMightHaveChanged) {
 335             PreferenceActivity.prefsMightHaveChanged = false;
 336             finish();
 337             startActivity(getIntent());
 338         }
 339
 340         final SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
 341         showDownloadable.setChecked(prefs.getBoolean(C.SHOW_DOWNLOADABLE, true));
 342
 343         if (!blockAutoLaunch &&
 344                 getIntent().getBooleanExtra(C.CAN_AUTO_LAUNCH_DICT, true) &&
 345                 prefs.contains(C.DICT_FILE) &&
 346                 prefs.contains(C.INDEX_SHORT_NAME)) {
 347             Log.d(LOG, "Skipping DictionaryManager, going straight to dictionary.");
 348             startActivity(DictionaryActivity.getLaunchIntent(getApplicationContext(),
 349                     new File(prefs.getString(C.DICT_FILE, "")),
 350                     prefs.getString(C.INDEX_SHORT_NAME, ""),
 351                     prefs.getString(C.SEARCH_TOKEN, "")));
 352             finish();
 353             return;
 354         }
 355
 356         // Remove the active dictionary from the prefs so we won't autolaunch
 357         // next time.
 358         final Editor editor = prefs.edit();
 359         editor.remove(C.DICT_FILE);
 360         editor.remove(C.INDEX_SHORT_NAME);
 361         editor.remove(C.SEARCH_TOKEN);
 362         editor.commit();
 363
 364         application.backgroundUpdateDictionaries(dictionaryUpdater);
 365
 366         setMyListAdapater();
 367     }
 368
 369     @Override
 370     public boolean onCreateOptionsMenu(final Menu menu) {
 371         application.onCreateGlobalOptionsMenu(this, menu);
 372         return true;
 373     }
 374
 375     @Override
 376     public void onCreateContextMenu(final ContextMenu menu, final View view,
 377             final ContextMenuInfo menuInfo) {
 378         super.onCreateContextMenu(menu, view, menuInfo);
 379         Log.d(LOG, "onCreateContextMenu, " + menuInfo);
 380
 381         final AdapterContextMenuInfo adapterContextMenuInfo =
 382                 (AdapterContextMenuInfo) menuInfo;
 383         final int position = adapterContextMenuInfo.position;
 384         final MyListAdapter.Row row = (MyListAdapter.Row) getListAdapter().getItem(position);
 385
 386         if (row.dictionaryInfo == null) {
 387             return;
 388         }
 389
 390         if (position > 0 && row.onDevice) {
 391             final android.view.MenuItem moveToTopMenuItem =
 392                     menu.add(R.string.moveToTop);
 393             moveToTopMenuItem.setOnMenuItemClickListener(new
 394                     android.view.MenuItem.OnMenuItemClickListener() {
 395                         @Override
 396                         public boolean onMenuItemClick(android.view.MenuItem item) {
 397                             application.moveDictionaryToTop(row.dictionaryInfo);
 398                             setMyListAdapater();
 399                             return true;
 400                         }
 401                     });
 402         }
 403
 404         if (row.onDevice) {
 405             final android.view.MenuItem deleteMenuItem = menu.add(R.string.deleteDictionary);
 406             deleteMenuItem
 407                     .setOnMenuItemClickListener(new android.view.MenuItem.OnMenuItemClickListener() {
 408                         @Override
 409                         public boolean onMenuItemClick(android.view.MenuItem item) {
 410                             application.deleteDictionary(row.dictionaryInfo);
 411                             setMyListAdapater();
 412                             return true;
 413                         }
 414                     });
 415         }
 416     }
 417
 418     private void onShowDownloadableChanged() {
 419         setMyListAdapater();
 420         Editor prefs = PreferenceManager.getDefaultSharedPreferences(this).edit();
 421         prefs.putBoolean(C.SHOW_DOWNLOADABLE, showDownloadable.isChecked());
 422         prefs.commit();
 423     }
 424
 425     class MyListAdapter extends BaseAdapter {
 426
 427         List<DictionaryInfo> dictionariesOnDevice;
 428         List<DictionaryInfo> downloadableDictionaries;
 429
 430         class Row {
 431             DictionaryInfo dictionaryInfo;
 432             boolean onDevice;
 433
 434             private Row(DictionaryInfo dictinoaryInfo, boolean onDevice) {
 435                 this.dictionaryInfo = dictinoaryInfo;
 436                 this.onDevice = onDevice;
 437             }
 438         }
 439
 440         private MyListAdapter(final String[] filters) {
 441             dictionariesOnDevice = application.getDictionariesOnDevice(filters);
 442             if (showDownloadable.isChecked()) {
 443                 downloadableDictionaries = application.getDownloadableDictionaries(filters);
 444             } else {
 445                 downloadableDictionaries = Collections.emptyList();
 446             }
 447         }
 448
 449         @Override
 450         public int getCount() {
 451             return 2 + dictionariesOnDevice.size() + downloadableDictionaries.size();
 452         }
 453
 454         @Override
 455         public Row getItem(int position) {
 456             if (position == 0) {
 457                 return new Row(null, true);
 458             }
 459             position -= 1;
 460
 461             if (position < dictionariesOnDevice.size()) {
 462                 return new Row(dictionariesOnDevice.get(position), true);
 463             }
 464             position -= dictionariesOnDevice.size();
 465
 466             if (position == 0) {
 467                 return new Row(null, false);
 468             }
 469             position -= 1;
 470
 471             assert position < downloadableDictionaries.size();
 472             return new Row(downloadableDictionaries.get(position), false);
 473         }
 474
 475         @Override
 476         public long getItemId(int position) {
 477             return position;
 478         }
 479
 480         @Override
 481         public View getView(int position, View convertView, ViewGroup parent) {
 482             if (convertView instanceof LinearLayout &&
 483                     convertView != dictionariesOnDeviceHeaderRow &&
 484                     convertView != downloadableDictionariesHeaderRow) {
 485                 /*
 486                  * This is done to try to avoid leaking memory that used to
 487                  * happen on Android 4.0.3
 488                  */
 489                 ((LinearLayout) convertView).removeAllViews();
 490             }
 491
 492             final Row row = getItem(position);
 493
 494             if (row.onDevice) {
 495                 if (row.dictionaryInfo == null) {
 496                     return dictionariesOnDeviceHeaderRow;
 497                 }
 498                 return createDictionaryRow(row.dictionaryInfo, parent, true);
 499             }
 500
 501             if (row.dictionaryInfo == null) {
 502                 return downloadableDictionariesHeaderRow;
 503             }
 504             return createDictionaryRow(row.dictionaryInfo, parent, false);
 505         }
 506
 507     }
 508
 509     private void setMyListAdapater() {
 510         final String filter = filterSearchView == null ? "" : filterSearchView.getQuery()
 511                 .toString();
 512         final String[] filters = filter.trim().toLowerCase().split("(\\s|-)+");
 513         setListAdapter(new MyListAdapter(filters));
 514     }
 515
 516     private View createDictionaryRow(final DictionaryInfo dictionaryInfo,
 517             final ViewGroup parent, final boolean canLaunch) {
 518
 519         View row = LayoutInflater.from(parent.getContext()).inflate(
 520                 R.layout.dictionary_manager_row, parent, false);
 521         final TextView name = (TextView) row.findViewById(R.id.dictionaryName);
 522         final TextView details = (TextView) row.findViewById(R.id.dictionaryDetails);
 523         name.setText(application.getDictionaryName(dictionaryInfo.uncompressedFilename));
 524
 525         final boolean updateAvailable = application.updateAvailable(dictionaryInfo);
 526         final Button downloadButton = (Button) row.findViewById(R.id.downloadButton);
 527         if (!canLaunch || updateAvailable) {
 528             final DictionaryInfo downloadable = application.getDownloadable(dictionaryInfo.uncompressedFilename);
 529             downloadButton
 530                     .setText(getString(
 531                             R.string.downloadButton,
 532                             downloadable.zipBytes / 1024.0 / 1024.0));
 533             downloadButton.setMinWidth(application.languageButtonPixels * 3 / 2);
 534             downloadButton.setOnClickListener(new OnClickListener() {
 535                 @Override
 536                 public void onClick(View arg0) {
 537                     downloadDictionary(downloadable.downloadUrl);
 538                 }
 539             });
 540         } else {
 541             downloadButton.setVisibility(View.INVISIBLE);
 542         }
 543
 544         LinearLayout buttons = (LinearLayout) row.findViewById(R.id.dictionaryLauncherButtons);
 545         final List<IndexInfo> sortedIndexInfos = application
 546                 .sortedIndexInfos(dictionaryInfo.indexInfos);
 547         final StringBuilder builder = new StringBuilder();
 548         if (updateAvailable) {
 549             builder.append(getString(R.string.updateAvailable));
 550         }
 551         for (IndexInfo indexInfo : sortedIndexInfos) {
 552             final View button = application.createButton(buttons.getContext(), dictionaryInfo,
 553                     indexInfo);
 554             buttons.addView(button);
 555
 556             if (canLaunch) {
 557                 button.setOnClickListener(
 558                         new IntentLauncher(buttons.getContext(),
 559                                 DictionaryActivity.getLaunchIntent(getApplicationContext(),
 560                                         application.getPath(dictionaryInfo.uncompressedFilename),
 561                                         indexInfo.shortName, "")));
 562
 563             } else {
 564                 button.setEnabled(false);
 565             }
 566             if (builder.length() != 0) {
 567                 builder.append("; ");
 568             }
 569             builder.append(getString(R.string.indexInfo, indexInfo.shortName,
 570                     indexInfo.mainTokenCount));
 571         }
 572         details.setText(builder.toString());
 573
 574         if (canLaunch) {
 575             row.setClickable(true);
 576             row.setOnClickListener(new IntentLauncher(parent.getContext(),
 577                     DictionaryActivity.getLaunchIntent(getApplicationContext(),
 578                             application.getPath(dictionaryInfo.uncompressedFilename),
 579                             dictionaryInfo.indexInfos.get(0).shortName, "")));
 580             row.setFocusable(true);
 581             row.setLongClickable(true);
 582         }
 583         row.setBackgroundResource(android.R.drawable.menuitem_background);
 584
 585         return row;
 586     }
 587
 588     private void downloadDictionary(final String downloadUrl) {
 589         DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
 590         Request request = new Request(
 591                 Uri.parse(downloadUrl));
 592         try {
 593             final String destFile = new File(new URL(downloadUrl).getFile())
 594                     .getName();
 595             Log.d(LOG, "Downloading to: " + destFile);
 596
 597             request.setDestinationUri(Uri.fromFile(new File(Environment
 598                     .getExternalStorageDirectory(), destFile)));
 599         } catch (MalformedURLException e) {
 600             throw new RuntimeException(e);
 601         }
 602         downloadManager.enqueue(request);
 603     }
 604
 605 }