app/src/main/java/com/stoutner/privacybrowser/activities/BookmarksDatabaseViewActivity.java

   1 /*
   2  * Copyright © 2016-2019 Soren Stoutner <soren@stoutner.com>.
   3  *
   4  * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
   5  *
   6  * Privacy Browser is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Privacy Browser is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with Privacy Browser.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 package com.stoutner.privacybrowser.activities;
  21
  22 import android.content.Context;
  23 import android.database.Cursor;
  24 import android.database.MatrixCursor;
  25 import android.database.MergeCursor;
  26 import android.graphics.Bitmap;
  27 import android.graphics.BitmapFactory;
  28 import android.graphics.Typeface;
  29 import android.graphics.drawable.BitmapDrawable;
  30 import android.graphics.drawable.Drawable;
  31 import android.os.Bundle;
  32 import android.support.design.widget.Snackbar;
  33 import android.support.v4.app.NavUtils;
  34 import android.support.v4.content.ContextCompat;
  35 import android.support.v4.widget.CursorAdapter;
  36 import android.support.v4.widget.ResourceCursorAdapter;
  37 import android.support.v7.app.ActionBar;
  38 import android.support.v7.app.AppCompatActivity;
  39 // `AppCompatDialogFragment` is required instead of `DialogFragment` or an error is produced on API <=22.
  40 import android.support.v7.app.AppCompatDialogFragment;
  41 import android.support.v7.widget.Toolbar;
  42 import android.view.Menu;
  43 import android.view.MenuItem;
  44 import android.view.View;
  45 import android.view.ViewGroup;
  46 import android.view.WindowManager;
  47 import android.widget.AdapterView;
  48 import android.widget.EditText;
  49 import android.widget.ImageView;
  50 import android.widget.ListView;
  51 import android.widget.RadioButton;
  52 import android.widget.Spinner;
  53 import android.widget.TextView;
  54
  55 import com.stoutner.privacybrowser.R;
  56 import com.stoutner.privacybrowser.dialogs.EditBookmarkDatabaseViewDialog;
  57 import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDatabaseViewDialog;
  58 import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
  59
  60 import java.io.ByteArrayOutputStream;
  61
  62 public class BookmarksDatabaseViewActivity extends AppCompatActivity implements EditBookmarkDatabaseViewDialog.EditBookmarkDatabaseViewListener, EditBookmarkFolderDatabaseViewDialog.EditBookmarkFolderDatabaseViewListener {
  63     // Instantiate the constants.
  64     private static final int ALL_FOLDERS_DATABASE_ID = -2;
  65     private static final int HOME_FOLDER_DATABASE_ID = -1;
  66
  67     // `bookmarksDatabaseHelper` is used in `onCreate()`, `updateBookmarksListView()`, and `onDestroy()`.
  68     private BookmarksDatabaseHelper bookmarksDatabaseHelper;
  69
  70     // `bookmarksCursor` is used in `onCreate()`, `updateBookmarksListView()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, and `onDestroy()`.
  71     private Cursor bookmarksCursor;
  72
  73     // `bookmarksCursorAdapter` is used in `onCreate()` and `updateBookmarksListView()`.
  74     private CursorAdapter bookmarksCursorAdapter;
  75
  76     // `oldFolderNameString` is used in `onCreate()` and `onSaveBookmarkFolder()`.
  77     private String oldFolderNameString;
  78
  79     // `currentFolderDatabaseId` is used in `onCreate()`, `updateBookmarksListView()`, `onSaveBookmark()`, and `onSaveBookmarkFolder()`.
  80     private int currentFolderDatabaseId;
  81
  82     // `currentFolder` is used in `onCreate()`, `onSaveBookmark()`, and `onSaveBookmarkFolder()`.
  83     private String currentFolderName;
  84
  85     // `sortByDisplayOrder` is used in `onCreate()`, `onOptionsItemSelected()`, and `updateBookmarksListView()`.
  86     private boolean sortByDisplayOrder;
  87
  88     @Override
  89     public void onCreate(Bundle savedInstanceState) {
  90         // Disable screenshots if not allowed.
  91         if (!MainWebViewActivity.allowScreenshots) {
  92             getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
  93         }
  94
  95         // Set the activity theme.
  96         if (MainWebViewActivity.darkTheme) {
  97             setTheme(R.style.PrivacyBrowserDark_SecondaryActivity);
  98         } else {
  99             setTheme(R.style.PrivacyBrowserLight_SecondaryActivity);
 100         }
 101
 102         // Run the default commands.
 103         super.onCreate(savedInstanceState);
 104
 105         // Set the content view.
 106         setContentView(R.layout.bookmarks_databaseview_coordinatorlayout);
 107
 108         // The `SupportActionBar` from `android.support.v7.app.ActionBar` must be used until the minimum API is >= 21.
 109         Toolbar bookmarksDatabaseViewAppBar = findViewById(R.id.bookmarks_databaseview_toolbar);
 110         setSupportActionBar(bookmarksDatabaseViewAppBar);
 111
 112         // Get a handle for the `AppBar`.
 113         ActionBar appBar = getSupportActionBar();
 114
 115         // Remove the incorrect warning in Android Studio that `appBar` might be null.
 116         assert appBar != null;
 117
 118         // Display the spinner and the back arrow in the app bar.
 119         appBar.setCustomView(R.layout.spinner);
 120         appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_HOME_AS_UP);
 121
 122         // Initialize the database handler.  `this` specifies the context.  The two `null`s do not specify the database name or a `CursorFactory`.  The `0` is to specify a database version, but that is set instead using a constant in `BookmarksDatabaseHelper`.
 123         bookmarksDatabaseHelper = new BookmarksDatabaseHelper(this, null, null, 0);
 124
 125         // Setup a matrix cursor for "All Folders" and "Home Folder".
 126         String[] matrixCursorColumnNames = {BookmarksDatabaseHelper._ID, BookmarksDatabaseHelper.BOOKMARK_NAME};
 127         MatrixCursor matrixCursor = new MatrixCursor(matrixCursorColumnNames);
 128         matrixCursor.addRow(new Object[]{ALL_FOLDERS_DATABASE_ID, getString(R.string.all_folders)});
 129         matrixCursor.addRow(new Object[]{HOME_FOLDER_DATABASE_ID, getString(R.string.home_folder)});
 130
 131         // Get a `Cursor` with the list of all the folders.
 132         Cursor foldersCursor = bookmarksDatabaseHelper.getAllFoldersCursor();
 133
 134         // Combine `matrixCursor` and `foldersCursor`.
 135         MergeCursor foldersMergeCursor = new MergeCursor(new Cursor[]{matrixCursor, foldersCursor});
 136
 137         // Create a resource cursor adapter for the spinner.
 138         ResourceCursorAdapter foldersCursorAdapter = new ResourceCursorAdapter(this, R.layout.appbar_spinner_item, foldersMergeCursor, 0) {
 139             @Override
 140             public void bindView(View view, Context context, Cursor cursor) {
 141                 // Get a handle for the spinner item text view.
 142                 TextView spinnerItemTextView = view.findViewById(R.id.spinner_item_textview);
 143
 144                 // Set the text view to display the folder name.
 145                 spinnerItemTextView.setText(cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
 146             }
 147         };
 148
 149         // Set the resource cursor adapter drop drown view resource.
 150         foldersCursorAdapter.setDropDownViewResource(R.layout.appbar_spinner_dropdown_item);
 151
 152         // Get a handle for the folder spinner and set the adapter.
 153         Spinner folderSpinner = findViewById(R.id.spinner);
 154         folderSpinner.setAdapter(foldersCursorAdapter);
 155
 156         // Handle clicks on the spinner dropdown.
 157         folderSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
 158             @Override
 159             public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
 160                 // Store the current folder database ID.
 161                 currentFolderDatabaseId = (int) id;
 162
 163                 // Get a handle for the selected view.
 164                 TextView selectedFolderTextView = findViewById(R.id.spinner_item_textview);
 165
 166                 // Store the current folder name.
 167                 currentFolderName = selectedFolderTextView.getText().toString();
 168
 169                 // Update the list view.
 170                 updateBookmarksListView();
 171             }
 172
 173             @Override
 174             public void onNothingSelected(AdapterView<?> parent) {
 175                 // Do nothing.
 176             }
 177         });
 178
 179         // Get a handle for the bookmarks `ListView`.
 180         ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
 181
 182         // Get a `Cursor` with the current contents of the bookmarks database.
 183         bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor();
 184
 185         // Setup a `CursorAdapter` with `this` context.  `false` disables autoRequery.
 186         bookmarksCursorAdapter = new CursorAdapter(this, bookmarksCursor, false) {
 187             @Override
 188             public View newView(Context context, Cursor cursor, ViewGroup parent) {
 189                 // Inflate the individual item layout.  `false` does not attach it to the root.
 190                 return getLayoutInflater().inflate(R.layout.bookmarks_databaseview_item_linearlayout, parent, false);
 191             }
 192
 193             @Override
 194             public void bindView(View view, Context context, Cursor cursor) {
 195                 boolean isFolder = (cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1);
 196
 197                 // Get the database ID from the `Cursor` and display it in `bookmarkDatabaseIdTextView`.
 198                 int bookmarkDatabaseId = cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper._ID));
 199                 TextView bookmarkDatabaseIdTextView = view.findViewById(R.id.bookmarks_databaseview_database_id);
 200                 bookmarkDatabaseIdTextView.setText(String.valueOf(bookmarkDatabaseId));
 201
 202                 // Get the favorite icon byte array from the `Cursor`.
 203                 byte[] favoriteIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
 204                 // Convert the byte array to a `Bitmap` beginning at the beginning at the first byte and ending at the last.
 205                 Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
 206                 // Display the bitmap in `bookmarkFavoriteIcon`.
 207                 ImageView bookmarkFavoriteIcon = view.findViewById(R.id.bookmarks_databaseview_favorite_icon);
 208                 bookmarkFavoriteIcon.setImageBitmap(favoriteIconBitmap);
 209
 210                 // Get the bookmark name from the `Cursor` and display it in `bookmarkNameTextView`.
 211                 String bookmarkNameString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
 212                 TextView bookmarkNameTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_name);
 213                 bookmarkNameTextView.setText(bookmarkNameString);
 214
 215                 // Make the font bold for folders.
 216                 if (isFolder) {
 217                     // The first argument is `null` prevent changing of the font.
 218                     bookmarkNameTextView.setTypeface(null, Typeface.BOLD);
 219                 } else {  // Reset the font to default.
 220                     bookmarkNameTextView.setTypeface(Typeface.DEFAULT);
 221                 }
 222
 223                 // Get the bookmark URL form the `Cursor` and display it in `bookmarkUrlTextView`.
 224                 String bookmarkUrlString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL));
 225                 TextView bookmarkUrlTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_url);
 226                 bookmarkUrlTextView.setText(bookmarkUrlString);
 227
 228                 // Hide the URL if the bookmark is a folder.
 229                 if (isFolder) {
 230                     bookmarkUrlTextView.setVisibility(View.GONE);
 231                 } else {
 232                     bookmarkUrlTextView.setVisibility(View.VISIBLE);
 233                 }
 234
 235                 // Get the display order from the `Cursor` and display it in `bookmarkDisplayOrderTextView`.
 236                 int bookmarkDisplayOrder = cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER));
 237                 TextView bookmarkDisplayOrderTextView = view.findViewById(R.id.bookmarks_databaseview_display_order);
 238                 bookmarkDisplayOrderTextView.setText(String.valueOf(bookmarkDisplayOrder));
 239
 240                 // Get the parent folder from the `Cursor` and display it in `bookmarkParentFolder`.
 241                 String bookmarkParentFolder = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER));
 242                 ImageView parentFolderImageView = view.findViewById(R.id.bookmarks_databaseview_parent_folder_icon);
 243                 TextView bookmarkParentFolderTextView = view.findViewById(R.id.bookmarks_databaseview_parent_folder);
 244
 245                 // Make the folder name gray if it is the home folder.
 246                 if (bookmarkParentFolder.isEmpty()) {
 247                     parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_gray));
 248                     bookmarkParentFolderTextView.setText(R.string.home_folder);
 249                     bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_500));
 250                 } else {
 251                     parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_dark_blue));
 252                     bookmarkParentFolderTextView.setText(bookmarkParentFolder);
 253
 254                     // Set the text color according to the theme.
 255                     if (MainWebViewActivity.darkTheme) {
 256                         bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_300));
 257                     } else {
 258                         bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.black));
 259                     }
 260                 }
 261             }
 262         };
 263
 264         // Update the ListView.
 265         bookmarksListView.setAdapter(bookmarksCursorAdapter);
 266
 267         // Set the current folder database ID.
 268         currentFolderDatabaseId = ALL_FOLDERS_DATABASE_ID;
 269
 270         // Set a listener to edit a bookmark when it is tapped.
 271         bookmarksListView.setOnItemClickListener((AdapterView<?> parent, View view, int position, long id) -> {
 272             // Convert the database ID to an `int`.
 273             int databaseId = (int) id;
 274
 275             // Show the edit bookmark or edit bookmark folder dialog.
 276             if (bookmarksDatabaseHelper.isFolder(databaseId)) {
 277                 // Save the current folder name, which is used in `onSaveBookmarkFolder()`.
 278                 oldFolderNameString = bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
 279
 280                 // Show the edit bookmark folder dialog.
 281                 AppCompatDialogFragment editBookmarkFolderDatabaseViewDialog = EditBookmarkFolderDatabaseViewDialog.folderDatabaseId(databaseId);
 282                 editBookmarkFolderDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_folder));
 283             } else {
 284                 // Show the edit bookmark dialog.
 285                 AppCompatDialogFragment editBookmarkDatabaseViewDialog = EditBookmarkDatabaseViewDialog.bookmarkDatabaseId(databaseId);
 286                 editBookmarkDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_bookmark));
 287             }
 288         });
 289     }
 290
 291     @Override
 292     public boolean onCreateOptionsMenu(Menu menu) {
 293         // Inflate the menu.
 294         getMenuInflater().inflate(R.menu.bookmarks_databaseview_options_menu, menu);
 295
 296         // Success.
 297         return true;
 298     }
 299
 300     @Override
 301     public boolean onOptionsItemSelected(MenuItem menuItem) {
 302         // Get the ID of the menu item that was selected.
 303         int menuItemId = menuItem.getItemId();
 304
 305         switch (menuItemId) {
 306             case android.R.id.home:  // The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
 307                 // Return to `MainWebViewActivity`.
 308                 NavUtils.navigateUpFromSameTask(this);
 309                 break;
 310
 311             case R.id.options_menu_sort:
 312                 // Update the sort by display order tracker.
 313                 sortByDisplayOrder = !sortByDisplayOrder;
 314
 315                 // Get a handle for the bookmarks `ListView`.
 316                 ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
 317
 318                 // Update the icon and display a snackbar.
 319                 if (sortByDisplayOrder) {  // Sort by display order.
 320                     // Update the icon according to the theme.
 321                     if (MainWebViewActivity.darkTheme) {
 322                         menuItem.setIcon(R.drawable.sort_selected_dark);
 323                     } else {
 324                         menuItem.setIcon(R.drawable.sort_selected_light);
 325                     }
 326
 327                     // Display a Snackbar indicating the current sort type.
 328                     Snackbar.make(bookmarksListView, R.string.sorted_by_display_order, Snackbar.LENGTH_SHORT).show();
 329                 } else {  // Sort by database id.
 330                     // Update the icon according to the theme.
 331                     if (MainWebViewActivity.darkTheme) {
 332                         menuItem.setIcon(R.drawable.sort_dark);
 333                     } else {
 334                         menuItem.setIcon(R.drawable.sort_light);
 335                     }
 336
 337                     // Display a Snackbar indicating the current sort type.
 338                     Snackbar.make(bookmarksListView, R.string.sorted_by_database_id, Snackbar.LENGTH_SHORT).show();
 339                 }
 340
 341                 // Update the list view.
 342                 updateBookmarksListView();
 343                 break;
 344         }
 345         return true;
 346     }
 347
 348     private void updateBookmarksListView() {
 349         // Populate the bookmarks list view based on the spinner selection.
 350         switch (currentFolderDatabaseId) {
 351             // Get a cursor with all the folders.
 352             case ALL_FOLDERS_DATABASE_ID:
 353                 if (sortByDisplayOrder) {
 354                     bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursorByDisplayOrder();
 355                 } else {
 356                     bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor();
 357                 }
 358                 break;
 359
 360             // Get a cursor for the home folder.
 361             case HOME_FOLDER_DATABASE_ID:
 362                 if (sortByDisplayOrder) {
 363                     bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursorByDisplayOrder("");
 364                 } else {
 365                     bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor("");
 366                 }
 367                 break;
 368
 369             // Display the selected folder.
 370             default:
 371                 // Get a cursor for the selected folder.
 372                 if (sortByDisplayOrder) {
 373                     bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursorByDisplayOrder(currentFolderName);
 374                 } else {
 375                     bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor(currentFolderName);
 376                 }
 377         }
 378
 379         // Update the list view.
 380         bookmarksCursorAdapter.changeCursor(bookmarksCursor);
 381     }
 382
 383     @Override
 384     public void onSaveBookmark(AppCompatDialogFragment dialogFragment, int selectedBookmarkDatabaseId) {
 385         // Get handles for the views from dialog fragment.
 386         RadioButton currentBookmarkIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_current_icon_radiobutton);
 387         EditText editBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_name_edittext);
 388         EditText editBookmarkUrlEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_url_edittext);
 389         Spinner folderSpinner = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_folder_spinner);
 390         EditText displayOrderEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_display_order_edittext);
 391
 392         // Extract the bookmark information.
 393         String bookmarkNameString = editBookmarkNameEditText.getText().toString();
 394         String bookmarkUrlString = editBookmarkUrlEditText.getText().toString();
 395         int folderDatabaseId = (int) folderSpinner.getSelectedItemId();
 396         int displayOrderInt = Integer.valueOf(displayOrderEditText.getText().toString());
 397
 398         // Instantiate the parent folder name `String`.
 399         String parentFolderNameString;
 400
 401         // Set the parent folder name.
 402         if (folderDatabaseId == EditBookmarkDatabaseViewDialog.HOME_FOLDER_DATABASE_ID) {  // The home folder is selected.  Use `""`.
 403             parentFolderNameString = "";
 404         } else {  // Get the parent folder name from the database.
 405             parentFolderNameString = bookmarksDatabaseHelper.getFolderName(folderDatabaseId);
 406         }
 407
 408         // Update the bookmark.
 409         if (currentBookmarkIconRadioButton.isChecked()) {  // Update the bookmark without changing the favorite icon.
 410             bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt);
 411         } else {  // Update the bookmark using the `WebView` favorite icon.
 412             // Convert the favorite icon to a byte array.  `0` is for lossless compression (the only option for a PNG).
 413             ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
 414             MainWebViewActivity.favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
 415             byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
 416
 417             //  Update the bookmark and the favorite icon.
 418             bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt, newFavoriteIconByteArray);
 419         }
 420
 421         // Update the list view.
 422         updateBookmarksListView();
 423     }
 424
 425     @Override
 426     public void onSaveBookmarkFolder(AppCompatDialogFragment dialogFragment, int selectedBookmarkDatabaseId) {
 427         // Get handles for the views from dialog fragment.
 428         RadioButton currentBookmarkIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_current_icon_radiobutton);
 429         RadioButton defaultFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_radiobutton);
 430         ImageView defaultFolderIconImageView = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_imageview);
 431         EditText editBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_folder_name_edittext);
 432         Spinner parentFolderSpinner = dialogFragment.getDialog().findViewById(R.id.edit_folder_parent_folder_spinner);
 433         EditText displayOrderEditText = dialogFragment.getDialog().findViewById(R.id.edit_folder_display_order_edittext);
 434
 435         // Extract the folder information.
 436         String newFolderNameString = editBookmarkNameEditText.getText().toString();
 437         int parentFolderDatabaseId = (int) parentFolderSpinner.getSelectedItemId();
 438         int displayOrderInt = Integer.valueOf(displayOrderEditText.getText().toString());
 439
 440         // Instantiate the parent folder name `String`.
 441         String parentFolderNameString;
 442
 443         // Set the parent folder name.
 444         if (parentFolderDatabaseId == EditBookmarkFolderDatabaseViewDialog.HOME_FOLDER_DATABASE_ID) {  // The home folder is selected.  Use `""`.
 445             parentFolderNameString = "";
 446         } else {  // Get the parent folder name from the database.
 447             parentFolderNameString = bookmarksDatabaseHelper.getFolderName(parentFolderDatabaseId);
 448         }
 449
 450         // Update the folder.
 451         if (currentBookmarkIconRadioButton.isChecked()) {  // Update the folder without changing the favorite icon.
 452             bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt);
 453         } else {  // Update the folder and the icon.
 454             // Instantiate the new folder icon `Bitmap`.
 455             Bitmap folderIconBitmap;
 456
 457             // Populate the new folder icon bitmap.
 458             if (defaultFolderIconRadioButton.isChecked()) {
 459                 // Get the default folder icon and convert it to a `Bitmap`.
 460                 Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
 461                 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
 462                 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
 463             } else {  // Use the `WebView` favorite icon.
 464                 folderIconBitmap = MainWebViewActivity.favoriteIconBitmap;
 465             }
 466
 467             // Convert the folder icon to a byte array.  `0` is for lossless compression (the only option for a PNG).
 468             ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
 469             folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
 470             byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
 471
 472             //  Update the folder and the icon.
 473             bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt, newFolderIconByteArray);
 474         }
 475
 476         // Update the list view.
 477         updateBookmarksListView();
 478     }
 479
 480     @Override
 481     public void onDestroy() {
 482         // Close the bookmarks cursor and database.
 483         bookmarksCursor.close();
 484         bookmarksDatabaseHelper.close();
 485
 486         // Run the default commands.
 487         super.onDestroy();
 488     }
 489 }