]> gitweb.stoutner.com Git - PrivacyBrowserAndroid.git/blobdiff - app/src/main/java/com/stoutner/privacybrowser/activities/BookmarksActivity.java
Migrate the remaining classes to Kotlin. https://redmine.stoutner.com/issues/989
[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / activities / BookmarksActivity.java
diff --git a/app/src/main/java/com/stoutner/privacybrowser/activities/BookmarksActivity.java b/app/src/main/java/com/stoutner/privacybrowser/activities/BookmarksActivity.java
deleted file mode 100644 (file)
index 8c14b0e..0000000
+++ /dev/null
@@ -1,1221 +0,0 @@
-/*
- * Copyright 2016-2023 Soren Stoutner <soren@stoutner.com>.
- *
- * This file is part of Privacy Browser Android <https://www.stoutner.com/privacy-browser-android>.
- *
- * Privacy Browser Android is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * Privacy Browser Android is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Privacy Browser Android.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-package com.stoutner.privacybrowser.activities;
-
-import android.annotation.SuppressLint;
-import android.app.Dialog;
-import android.content.Context;
-import android.content.Intent;
-import android.content.SharedPreferences;
-import android.database.Cursor;
-import android.graphics.Bitmap;
-import android.graphics.BitmapFactory;
-import android.graphics.Typeface;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
-import android.os.Bundle;
-import android.util.SparseBooleanArray;
-import android.view.ActionMode;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.ViewGroup;
-import android.view.Window;
-import android.view.WindowManager;
-import android.widget.AbsListView;
-import android.widget.CursorAdapter;
-import android.widget.EditText;
-import android.widget.ImageView;
-import android.widget.ListView;
-import android.widget.RadioButton;
-import android.widget.TextView;
-
-import androidx.activity.OnBackPressedCallback;
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.ActionBar;
-import androidx.appcompat.app.AppCompatActivity;
-import androidx.appcompat.widget.Toolbar;
-import androidx.fragment.app.DialogFragment;
-import androidx.preference.PreferenceManager;
-
-import com.google.android.material.floatingactionbutton.FloatingActionButton;
-import com.google.android.material.snackbar.Snackbar;
-
-import com.stoutner.privacybrowser.R;
-import com.stoutner.privacybrowser.dialogs.CreateBookmarkDialog;
-import com.stoutner.privacybrowser.dialogs.CreateBookmarkFolderDialog;
-import com.stoutner.privacybrowser.dialogs.EditBookmarkDialog;
-import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDialog;
-import com.stoutner.privacybrowser.dialogs.MoveToFolderDialog;
-import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
-
-import java.io.ByteArrayOutputStream;
-import java.util.ArrayList;
-
-public class BookmarksActivity extends AppCompatActivity implements CreateBookmarkDialog.CreateBookmarkListener, CreateBookmarkFolderDialog.CreateBookmarkFolderListener, EditBookmarkDialog.EditBookmarkListener,
-        EditBookmarkFolderDialog.EditBookmarkFolderListener, MoveToFolderDialog.MoveToFolderListener {
-
-    // Declare the public static variables, which are accessed from the bookmarks database view activity.
-    public static String currentFolder;
-    public static boolean restartFromBookmarksDatabaseViewActivity;
-
-    // Define the saved instance state constants.
-    private final String CHECKED_BOOKMARKS_ARRAY_LIST = "checked_bookmarks_array_list";
-    private final String CURRENT_FOLDER = "current_folder";
-
-    // Define the class menu items.
-    private MenuItem moveBookmarkUpMenuItem;
-    private MenuItem moveBookmarkDownMenuItem;
-
-    // Declare the class variables.
-    private BookmarksDatabaseHelper bookmarksDatabaseHelper;
-    private Snackbar bookmarksDeletedSnackbar;
-    private boolean closeActivityAfterDismissingSnackbar;
-
-    // `bookmarksListView` is used in `onCreate()`, `onOptionsItemSelected()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`,
-    // `updateMoveIcons()`, `scrollBookmarks()`, and `loadFolder()`.
-    private ListView bookmarksListView;
-
-    // `bookmarksCursor` is used in `onCreate()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`, `deleteBookmarkFolderContents()`,
-    // `loadFolder()`, and `onDestroy()`.
-    private Cursor bookmarksCursor;
-
-    // `bookmarksCursorAdapter` is used in `onCreate(), `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`, and `onLoadFolder()`.
-    private CursorAdapter bookmarksCursorAdapter;
-
-    // `contextualActionMode` is used in `onCreate()`, `onSaveEditBookmark()`, `onSaveEditBookmarkFolder()` and `onMoveToFolder()`.
-    private ActionMode contextualActionMode;
-
-    // `appBar` is used in `onCreate()` and `loadFolder()`.
-    private ActionBar appBar;
-
-    // `oldFolderName` is used in `onCreate()` and `onSaveBookmarkFolder()`.
-    private String oldFolderNameString;
-
-    // The favorite icon byte array is populated in `onCreate()` and used in `onOptionsItemSelected()`.
-    private byte[] favoriteIconByteArray;
-
-    @Override
-    protected void onCreate(Bundle savedInstanceState) {
-        // Get a handle for the shared preferences.
-        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
-
-        // Get the preferences.
-        boolean allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false);
-        boolean bottomAppBar = sharedPreferences.getBoolean(getString(R.string.bottom_app_bar_key), false);
-
-        // Disable screenshots if not allowed.
-        if (!allowScreenshots) {
-            getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
-        }
-
-        // Run the default commands.
-        super.onCreate(savedInstanceState);
-
-        // Get the intent that launched the activity.
-        Intent launchingIntent = getIntent();
-
-        // Store the current URL and title.
-        String currentUrl = launchingIntent.getStringExtra("current_url");
-        String currentTitle = launchingIntent.getStringExtra("current_title");
-
-        // Set the current folder variable.
-        if (launchingIntent.getStringExtra("current_folder") != null) {  // Set the current folder from the intent.
-            currentFolder = launchingIntent.getStringExtra("current_folder");
-        } else {  // Set the current folder to be `""`, which is the home folder.
-            currentFolder = "";
-        }
-
-        // Get the favorite icon byte array.
-        favoriteIconByteArray = launchingIntent.getByteArrayExtra("favorite_icon_byte_array");
-
-        // Remove the incorrect lint warning that the favorite icon byte array might be null.
-        assert favoriteIconByteArray != null;
-
-        // Convert the favorite icon byte array to a bitmap.
-        Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
-
-        // Set the content according to the app bar position.
-        if (bottomAppBar) {
-            // Set the content view.
-            setContentView(R.layout.bookmarks_bottom_appbar);
-        } else {
-            // `Window.FEATURE_ACTION_MODE_OVERLAY` makes the contextual action mode cover the support action bar.  It must be requested before the content is set.
-            supportRequestWindowFeature(Window.FEATURE_ACTION_MODE_OVERLAY);
-
-            // Set the content view.
-            setContentView(R.layout.bookmarks_top_appbar);
-        }
-
-        // Get a handle for the toolbar.
-        final Toolbar toolbar = findViewById(R.id.bookmarks_toolbar);
-
-        // Set the support action bar.
-        setSupportActionBar(toolbar);
-
-        // Get handles for the views.
-        appBar = getSupportActionBar();
-        bookmarksListView = findViewById(R.id.bookmarks_listview);
-
-        // Remove the incorrect lint warning that `appBar` might be null.
-        assert appBar != null;
-
-        // Display the home arrow on the app bar.
-        appBar.setDisplayHomeAsUpEnabled(true);
-
-        // Control what the system back command does.
-        OnBackPressedCallback onBackPressedCallback = new OnBackPressedCallback(true) {
-            @Override
-            public void handleOnBackPressed() {
-                // Prepare to finish the activity.
-                prepareFinish();
-            }
-        };
-
-        // Register the on back pressed callback.
-        getOnBackPressedDispatcher().addCallback(this, onBackPressedCallback);
-
-        // Initialize the database helper.
-        bookmarksDatabaseHelper = new BookmarksDatabaseHelper(this);
-
-        // Set a listener so that tapping a list item loads the URL or folder.
-        bookmarksListView.setOnItemClickListener((parent, view, position, id) -> {
-            // Convert the id from long to int to match the format of the bookmarks database.
-            int databaseId = (int) id;
-
-            // Get the bookmark cursor for this ID.
-            Cursor bookmarkCursor = bookmarksDatabaseHelper.getBookmark(databaseId);
-
-            // Move the cursor to the first entry.
-            bookmarkCursor.moveToFirst();
-
-            // Act upon the bookmark according to the type.
-            if (bookmarkCursor.getInt(bookmarkCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.IS_FOLDER)) == 1) {  // The selected bookmark is a folder.
-                // Update the current folder.
-                currentFolder = bookmarkCursor.getString(bookmarkCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_NAME));
-
-                // Load the new folder.
-                loadFolder();
-            } else {  // The selected bookmark is not a folder.
-                // Instantiate the edit bookmark dialog.
-                DialogFragment editBookmarkDialog = EditBookmarkDialog.bookmarkDatabaseId(databaseId, favoriteIconBitmap);
-
-                // Make it so.
-                editBookmarkDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_bookmark));
-            }
-
-            // Close the cursor.
-            bookmarkCursor.close();
-        });
-
-        // Handle long presses on the list view.
-        bookmarksListView.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() {
-            // Instantiate the common variables.
-            MenuItem editBookmarkMenuItem;
-            MenuItem deleteBookmarksMenuItem;
-            MenuItem selectAllBookmarksMenuItem;
-            boolean deletingBookmarks;
-
-            @Override
-            public boolean onCreateActionMode(ActionMode mode, Menu menu) {
-                // Inflate the menu for the contextual app bar.
-                getMenuInflater().inflate(R.menu.bookmarks_context_menu, menu);
-
-                // Set the title.
-                if (currentFolder.isEmpty()) {  // Use `R.string.bookmarks` if in the home folder.
-                    mode.setTitle(R.string.bookmarks);
-                } else {  // Use the current folder name as the title.
-                    mode.setTitle(currentFolder);
-                }
-
-                // Get handles for menu items that need to be selectively disabled.
-                moveBookmarkUpMenuItem = menu.findItem(R.id.move_bookmark_up);
-                moveBookmarkDownMenuItem = menu.findItem(R.id.move_bookmark_down);
-                editBookmarkMenuItem = menu.findItem(R.id.edit_bookmark);
-                deleteBookmarksMenuItem = menu.findItem(R.id.delete_bookmark);
-                selectAllBookmarksMenuItem = menu.findItem(R.id.context_menu_select_all_bookmarks);
-
-                // Disable the delete bookmarks menu item if a delete is pending.
-                deleteBookmarksMenuItem.setEnabled(!deletingBookmarks);
-
-                // Store a handle for the contextual action mode so it can be closed programatically.
-                contextualActionMode = mode;
-
-                // Make it so.
-                return true;
-            }
-
-            @Override
-            public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
-                // Get a handle for the move to folder menu item.
-                MenuItem moveToFolderMenuItem = menu.findItem(R.id.move_to_folder);
-
-                // Get a Cursor with all of the folders.
-                Cursor folderCursor = bookmarksDatabaseHelper.getAllFolders();
-
-                // Enable the move to folder menu item if at least one folder exists.
-                moveToFolderMenuItem.setVisible(folderCursor.getCount() > 0);
-
-                // Make it so.
-                return true;
-            }
-
-            @Override
-            public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) {
-                // Get the number of selected bookmarks.
-                int numberOfSelectedBookmarks = bookmarksListView.getCheckedItemCount();
-
-                // Only process commands if at least one bookmark is selected.  Otherwise, a context menu with 0 selected bookmarks is briefly displayed.
-                if (numberOfSelectedBookmarks > 0) {
-                    // Adjust the ActionMode and the menu according to the number of selected bookmarks.
-                    if (numberOfSelectedBookmarks == 1) {  // One bookmark is selected.
-                        // List the number of selected bookmarks in the subtitle.
-                        mode.setSubtitle(getString(R.string.selected) + "1");
-
-                        // Show the `Move Up`, `Move Down`, and  `Edit` options.
-                        moveBookmarkUpMenuItem.setVisible(true);
-                        moveBookmarkDownMenuItem.setVisible(true);
-                        editBookmarkMenuItem.setVisible(true);
-
-                        // Update the enabled status of the move icons.
-                        updateMoveIcons();
-                    } else {  // More than one bookmark is selected.
-                        // List the number of selected bookmarks in the subtitle.
-                        mode.setSubtitle(getString(R.string.selected) + numberOfSelectedBookmarks);
-
-                        // Hide non-applicable `MenuItems`.
-                        moveBookmarkUpMenuItem.setVisible(false);
-                        moveBookmarkDownMenuItem.setVisible(false);
-                        editBookmarkMenuItem.setVisible(false);
-                    }
-
-                    // Show the select all menu item if all the bookmarks are not selected.
-                    selectAllBookmarksMenuItem.setVisible(bookmarksListView.getCheckedItemCount() != bookmarksListView.getCount());
-                }
-            }
-
-            @Override
-            public boolean onActionItemClicked(ActionMode actionMode, MenuItem menuItem) {
-                // Declare the common variables.
-                int selectedBookmarkNewPosition;
-                final SparseBooleanArray selectedBookmarksPositionsSparseBooleanArray;
-
-                // Initialize the selected bookmark position.
-                int selectedBookmarkPosition = 0;
-
-                // Get the menu item ID.
-                int menuItemId = menuItem.getItemId();
-
-                // Run the commands according to the selected action item.
-                if (menuItemId == R.id.move_bookmark_up) {  // Move the bookmark up.
-                    // Get the array of checked bookmark positions.
-                    selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
-
-                    // Get the position of the bookmark that is selected.  If other bookmarks have previously been selected they will be included in the sparse boolean array with a value of `false`.
-                    for (int i = 0; i < selectedBookmarksPositionsSparseBooleanArray.size(); i++) {
-                        // Check to see if the value for the bookmark is true, meaning it is currently selected.
-                        if (selectedBookmarksPositionsSparseBooleanArray.valueAt(i)) {
-                            // Only one bookmark should have a value of `true` when move bookmark up is enabled.
-                            selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(i);
-                        }
-                    }
-
-                    // Calculate the new position of the selected bookmark.
-                    selectedBookmarkNewPosition = selectedBookmarkPosition - 1;
-
-                    // Iterate through the bookmarks.
-                    for (int i = 0; i < bookmarksListView.getCount(); i++) {
-                        // Get the database ID for the current bookmark.
-                        int currentBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(i);
-
-                        // Update the display order for the current bookmark.
-                        if (i == selectedBookmarkPosition) {  // The current bookmark is the selected bookmark.
-                            // Move the current bookmark up one.
-                            bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i - 1);
-                        } else if ((i + 1) == selectedBookmarkPosition) {  // The current bookmark is immediately above the selected bookmark.
-                            // Move the current bookmark down one.
-                            bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i + 1);
-                        } else {  // The current bookmark is not changing positions.
-                            // Move `bookmarksCursor` to the current bookmark position.
-                            bookmarksCursor.moveToPosition(i);
-
-                            // Update the display order only if it is not correct in the database.
-                            if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i) {
-                                bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i);
-                            }
-                        }
-                    }
-
-                    // Update the bookmarks cursor with the current contents of the bookmarks database.
-                    bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
-
-                    // Update the list view.
-                    bookmarksCursorAdapter.changeCursor(bookmarksCursor);
-
-                    // Scroll with the bookmark.
-                    scrollBookmarks(selectedBookmarkNewPosition);
-
-                    // Update the enabled status of the move icons.
-                    updateMoveIcons();
-                } else if (menuItemId == R.id.move_bookmark_down) {  // Move the bookmark down.
-                    // Get the array of checked bookmark positions.
-                    selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
-
-                    // Get the position of the bookmark that is selected.  If other bookmarks have previously been selected they will be included in the sparse boolean array with a value of `false`.
-                    for (int i = 0; i < selectedBookmarksPositionsSparseBooleanArray.size(); i++) {
-                        // Check to see if the value for the bookmark is true, meaning it is currently selected.
-                        if (selectedBookmarksPositionsSparseBooleanArray.valueAt(i)) {
-                            // Only one bookmark should have a value of `true` when move bookmark down is enabled.
-                            selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(i);
-                        }
-                    }
-
-                    // Calculate the new position of the selected bookmark.
-                    selectedBookmarkNewPosition = selectedBookmarkPosition + 1;
-
-                    // Iterate through the bookmarks.
-                    for (int i = 0; i < bookmarksListView.getCount(); i++) {
-                        // Get the database ID for the current bookmark.
-                        int currentBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(i);
-
-                        // Update the display order for the current bookmark.
-                        if (i == selectedBookmarkPosition) {  // The current bookmark is the selected bookmark.
-                            // Move the current bookmark down one.
-                            bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i + 1);
-                        } else if ((i - 1) == selectedBookmarkPosition) {  // The current bookmark is immediately below the selected bookmark.
-                            // Move the bookmark below the selected bookmark up one.
-                            bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i - 1);
-                        } else {  // The current bookmark is not changing positions.
-                            // Move `bookmarksCursor` to the current bookmark position.
-                            bookmarksCursor.moveToPosition(i);
-
-                            // Update the display order only if it is not correct in the database.
-                            if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i) {
-                                bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i);
-                            }
-                        }
-                    }
-
-                    // Update the bookmarks cursor with the current contents of the bookmarks database.
-                    bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
-
-                    // Update the list view.
-                    bookmarksCursorAdapter.changeCursor(bookmarksCursor);
-
-                    // Scroll with the bookmark.
-                    scrollBookmarks(selectedBookmarkNewPosition);
-
-                    // Update the enabled status of the move icons.
-                    updateMoveIcons();
-                } else if (menuItemId == R.id.move_to_folder) {  // Move to folder.
-                    // Instantiate the move to folder alert dialog.
-                    DialogFragment moveToFolderDialog = MoveToFolderDialog.moveBookmarks(currentFolder, bookmarksListView.getCheckedItemIds());
-
-                    // Show the move to folder alert dialog.
-                    moveToFolderDialog.show(getSupportFragmentManager(), getResources().getString(R.string.move_to_folder));
-                } else if (menuItemId == R.id.edit_bookmark) {
-                    // Get the array of checked bookmark positions.
-                    selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
-
-                    // Get the position of the bookmark that is selected.  If other bookmarks have previously been selected they will be included in the sparse boolean array with a value of `false`.
-                    for (int i = 0; i < selectedBookmarksPositionsSparseBooleanArray.size(); i++) {
-                        // Check to see if the value for the bookmark is true, meaning it is currently selected.
-                        if (selectedBookmarksPositionsSparseBooleanArray.valueAt(i)) {
-                            // Only one bookmark should have a value of `true` when move edit bookmark is enabled.
-                            selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(i);
-                        }
-                    }
-
-                    // Move the cursor to the selected position.
-                    bookmarksCursor.moveToPosition(selectedBookmarkPosition);
-
-                    // Find out if this bookmark is a folder.
-                    boolean isFolder = (bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.IS_FOLDER)) == 1);
-
-                    // Get the selected bookmark database ID.
-                    int databaseId = bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID));
-
-                    // Show the edit bookmark or edit bookmark folder dialog.
-                    if (isFolder) {
-                        // Save the current folder name, which is used in `onSaveBookmarkFolder()`.
-                        oldFolderNameString = bookmarksCursor.getString(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_NAME));
-
-                        // Instantiate the edit bookmark folder dialog.
-                        DialogFragment editFolderDialog = EditBookmarkFolderDialog.folderDatabaseId(databaseId, favoriteIconBitmap);
-
-                        // Make it so.
-                        editFolderDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_folder));
-                    } else {
-                        // Instantiate the edit bookmark dialog.
-                        DialogFragment editBookmarkDialog = EditBookmarkDialog.bookmarkDatabaseId(databaseId, favoriteIconBitmap);
-
-                        // Make it so.
-                        editBookmarkDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_bookmark));
-                    }
-                } else if (menuItemId == R.id.delete_bookmark) {  // Delete bookmark.
-                    // Set the deleting bookmarks flag, which prevents the delete menu item from being enabled until the current process finishes.
-                    deletingBookmarks = true;
-
-                    // Get an array of the selected row IDs.
-                    final long[] selectedBookmarksIdsLongArray = bookmarksListView.getCheckedItemIds();
-
-                    // Initialize a variable to count the number of bookmarks to delete.
-                    int numberOfBookmarksToDelete = 0;
-
-                    // Count the number of bookmarks.
-                    for (long databaseIdLong : selectedBookmarksIdsLongArray) {
-                        // Convert the database ID long to an int.
-                        int databaseIdInt = (int) databaseIdLong;
-
-                        // Count the contents of the folder if the selected bookmark is a folder.
-                        if (bookmarksDatabaseHelper.isFolder(databaseIdInt)) {
-                            // Add the bookmarks from the folder to the running total.
-                            numberOfBookmarksToDelete = numberOfBookmarksToDelete + countBookmarkFolderContents(databaseIdInt);
-                        }
-
-                        // Increment the count of the number of bookmarks to delete.
-                        numberOfBookmarksToDelete++;
-                    }
-
-                    // Get an array of checked bookmarks.  `.clone()` makes a copy that won't change if the list view is reloaded, which is needed for re-selecting the bookmarks on undelete.
-                    selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions().clone();
-
-                    // Update the bookmarks cursor with the current contents of the bookmarks database except for the specified database IDs.
-                    bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, currentFolder);
-
-                    // Update the list view.
-                    bookmarksCursorAdapter.changeCursor(bookmarksCursor);
-
-                    // Create a Snackbar with the number of deleted bookmarks.
-                    bookmarksDeletedSnackbar = Snackbar.make(findViewById(R.id.bookmarks_coordinatorlayout), getString(R.string.bookmarks_deleted) + numberOfBookmarksToDelete,
-                            Snackbar.LENGTH_LONG)
-                            .setAction(R.string.undo, view -> {
-                                // Do nothing because everything will be handled by `onDismissed()` below.
-                            })
-                            .addCallback(new Snackbar.Callback() {
-                                @SuppressLint("SwitchIntDef")  // Ignore the lint warning about not handling the other possible events as they are covered by `default:`.
-                                @Override
-                                public void onDismissed(Snackbar snackbar, int event) {
-                                    if (event == Snackbar.Callback.DISMISS_EVENT_ACTION) {  // The user pushed the undo button.
-                                        // Update the bookmarks cursor with the current contents of the bookmarks database, including the "deleted" bookmarks.
-                                        bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
-
-                                        // Update the list view.
-                                        bookmarksCursorAdapter.changeCursor(bookmarksCursor);
-
-                                        // Re-select the previously selected bookmarks.
-                                        for (int i = 0; i < selectedBookmarksPositionsSparseBooleanArray.size(); i++) {
-                                            bookmarksListView.setItemChecked(selectedBookmarksPositionsSparseBooleanArray.keyAt(i), true);
-                                        }
-                                    } else {  // The snackbar was dismissed without the undo button being pushed.
-                                        // Delete each selected bookmark.
-                                        for (long databaseIdLong : selectedBookmarksIdsLongArray) {
-                                            // Convert `databaseIdLong` to an int.
-                                            int databaseIdInt = (int) databaseIdLong;
-
-                                            // Delete the contents of the folder if the selected bookmark is a folder.
-                                            if (bookmarksDatabaseHelper.isFolder(databaseIdInt)) {
-                                                deleteBookmarkFolderContents(databaseIdInt);
-                                            }
-
-                                            // Delete the selected bookmark.
-                                            bookmarksDatabaseHelper.deleteBookmark(databaseIdInt);
-                                        }
-
-                                        // Update the display order.
-                                        for (int i = 0; i < bookmarksListView.getCount(); i++) {
-                                            // Get the database ID for the current bookmark.
-                                            int currentBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(i);
-
-                                            // Move `bookmarksCursor` to the current bookmark position.
-                                            bookmarksCursor.moveToPosition(i);
-
-                                            // Update the display order only if it is not correct in the database.
-                                            if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i) {
-                                                bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i);
-                                            }
-                                        }
-                                    }
-
-                                    // Reset the deleting bookmarks flag.
-                                    deletingBookmarks = false;
-
-                                    // Enable the delete bookmarks menu item.
-                                    deleteBookmarksMenuItem.setEnabled(true);
-
-                                    // Close the activity if back has been pressed.
-                                    if (closeActivityAfterDismissingSnackbar) {
-                                        finish();
-                                    }
-                                }
-                            });
-
-                    //Show the Snackbar.
-                    bookmarksDeletedSnackbar.show();
-                } else if (menuItemId == R.id.context_menu_select_all_bookmarks) {  // Select all.
-                    // Get the total number of bookmarks.
-                    int numberOfBookmarks = bookmarksListView.getCount();
-
-                    // Select them all.
-                    for (int i = 0; i < numberOfBookmarks; i++) {
-                        bookmarksListView.setItemChecked(i, true);
-                    }
-                }
-
-                // Consume the click.
-                return true;
-            }
-
-            @Override
-            public void onDestroyActionMode(ActionMode mode) {
-                // Do nothing.
-            }
-        });
-
-        // Get handles for the floating action buttons.
-        FloatingActionButton createBookmarkFolderFab = findViewById(R.id.create_bookmark_folder_fab);
-        FloatingActionButton createBookmarkFab = findViewById(R.id.create_bookmark_fab);
-
-        // Set the create new bookmark folder FAB to display the `AlertDialog`.
-        createBookmarkFolderFab.setOnClickListener(v -> {
-            // Create a create bookmark folder dialog.
-            DialogFragment createBookmarkFolderDialog = CreateBookmarkFolderDialog.createBookmarkFolder(favoriteIconBitmap);
-
-            // Show the create bookmark folder dialog.
-            createBookmarkFolderDialog.show(getSupportFragmentManager(), getString(R.string.create_folder));
-        });
-
-        // Set the create new bookmark FAB to display the alert dialog.
-        createBookmarkFab.setOnClickListener(view -> {
-            // Remove the incorrect lint warning below.
-            assert currentUrl != null;
-            assert currentTitle != null;
-
-            // Instantiate the create bookmark dialog.
-            DialogFragment createBookmarkDialog = CreateBookmarkDialog.createBookmark(currentUrl, currentTitle, favoriteIconBitmap);
-
-            // Display the create bookmark dialog.
-            createBookmarkDialog.show(getSupportFragmentManager(), getResources().getString(R.string.create_bookmark));
-        });
-
-        // Restore the state if the app has been restarted.
-        if (savedInstanceState != null) {
-            // Restore the current folder.
-            currentFolder = savedInstanceState.getString(CURRENT_FOLDER);
-
-            // Update the bookmarks list view after it has loaded.
-            bookmarksListView.post(() -> {
-                // Get the checked bookmarks array list.
-                ArrayList<Integer> checkedBookmarksArrayList = savedInstanceState.getIntegerArrayList(CHECKED_BOOKMARKS_ARRAY_LIST);
-
-                // Check each previously checked bookmark in the list view.
-                if (checkedBookmarksArrayList != null)
-                    checkedBookmarksArrayList.forEach((position) -> bookmarksListView.setItemChecked(position, true));
-            });
-        }
-
-        // Load the home folder.
-        loadFolder();
-    }
-
-    @Override
-    public void onRestart() {
-        // Run the default commands.
-        super.onRestart();
-
-        // Update the list view if returning from the bookmarks database view activity.
-        if (restartFromBookmarksDatabaseViewActivity) {
-            // Load the current folder in the list view.
-            loadFolder();
-
-            // Reset `restartFromBookmarksDatabaseViewActivity`.
-            restartFromBookmarksDatabaseViewActivity = false;
-        }
-    }
-
-    @Override
-    public void onSaveInstanceState(@NonNull Bundle savedInstanceState) {
-        // Run the default commands.
-        super.onSaveInstanceState(savedInstanceState);
-
-        // Get the array of the checked items.
-        SparseBooleanArray checkedBookmarksSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
-
-        // Create a checked items array list.
-        ArrayList<Integer> checkedBookmarksArrayList = new ArrayList<>();
-
-        // Add each checked bookmark position to the array list.
-        for (int i = 0; i < checkedBookmarksSparseBooleanArray.size(); i++) {
-            // Check to see if the bookmark is currently checked.  Bookmarks that have previously been checked but currently aren't will be populated in the sparse boolean array, but will return false.
-            if (checkedBookmarksSparseBooleanArray.valueAt(i)) {
-                // Add the bookmark position to the checked bookmarks array list.
-                checkedBookmarksArrayList.add(checkedBookmarksSparseBooleanArray.keyAt(i));
-            }
-        }
-
-        // Store the variables in the saved instance state.
-        savedInstanceState.putString(CURRENT_FOLDER, currentFolder);
-        savedInstanceState.putIntegerArrayList(CHECKED_BOOKMARKS_ARRAY_LIST, checkedBookmarksArrayList);
-    }
-
-    @Override
-    public boolean onCreateOptionsMenu(Menu menu) {
-        // Inflate the menu.
-        getMenuInflater().inflate(R.menu.bookmarks_options_menu, menu);
-
-        // Success.
-        return true;
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem menuItem) {
-        // Get a handle for the menu item ID.
-        int menuItemId = menuItem.getItemId();
-
-        // Run the command according to the selected option.
-        if (menuItemId == android.R.id.home) {  // Home.  The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
-            if (currentFolder.isEmpty()) {  // Currently in the home folder.
-                // Prepare to finish the activity.
-                prepareFinish();
-            } else {  // Currently in a subfolder.
-                // Place the former parent folder in `currentFolder`.
-                currentFolder = bookmarksDatabaseHelper.getParentFolderName(currentFolder);
-
-                // Load the new folder.
-                loadFolder();
-            }
-        } else if (menuItemId == R.id.options_menu_select_all_bookmarks) {  // Select all.
-            // Get the total number of bookmarks.
-            int numberOfBookmarks = bookmarksListView.getCount();
-
-            // Select them all.
-            for (int i = 0; i < numberOfBookmarks; i++) {
-                bookmarksListView.setItemChecked(i, true);
-            }
-        } else if (menuItemId == R.id.bookmarks_database_view) {
-            // Close the contextual action bar if it is displayed.  This can happen if the bottom app bar is enabled.
-            if (contextualActionMode != null) {
-                contextualActionMode.finish();
-            }
-
-            // Create an intent to launch the bookmarks database view activity.
-            Intent bookmarksDatabaseViewIntent = new Intent(this, BookmarksDatabaseViewActivity.class);
-
-            // Include the favorite icon byte array to the intent.
-            bookmarksDatabaseViewIntent.putExtra("favorite_icon_byte_array", favoriteIconByteArray);
-
-            // Make it so.
-            startActivity(bookmarksDatabaseViewIntent);
-        }
-        return true;
-    }
-
-    @Override
-    public void onCreateBookmark(DialogFragment dialogFragment, Bitmap favoriteIconBitmap) {
-        // Get the alert dialog from the fragment.
-        Dialog dialog = dialogFragment.getDialog();
-
-        // Remove the incorrect lint warning below that the dialog might be null.
-        assert dialog != null;
-
-        // Get the views from the dialog fragment.
-        EditText createBookmarkNameEditText = dialog.findViewById(R.id.create_bookmark_name_edittext);
-        EditText createBookmarkUrlEditText = dialog.findViewById(R.id.create_bookmark_url_edittext);
-
-        // Extract the strings from the edit texts.
-        String bookmarkNameString = createBookmarkNameEditText.getText().toString();
-        String bookmarkUrlString = createBookmarkUrlEditText.getText().toString();
-
-        // Create a favorite icon byte array output stream.
-        ByteArrayOutputStream favoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
-
-        // Convert the favorite icon bitmap to a byte array.  `0` is for lossless compression (the only option for a PNG).
-        favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, favoriteIconByteArrayOutputStream);
-
-        // Convert the favorite icon byte array stream to a byte array.
-        byte[] favoriteIconByteArray = favoriteIconByteArrayOutputStream.toByteArray();
-
-        // Display the new bookmark below the current items in the (0 indexed) list.
-        int newBookmarkDisplayOrder = bookmarksListView.getCount();
-
-        // Create the bookmark.
-        bookmarksDatabaseHelper.createBookmark(bookmarkNameString, bookmarkUrlString, currentFolder, newBookmarkDisplayOrder, favoriteIconByteArray);
-
-        // Update the bookmarks cursor with the current contents of this folder.
-        bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
-
-        // Update the `ListView`.
-        bookmarksCursorAdapter.changeCursor(bookmarksCursor);
-
-        // Scroll to the new bookmark.
-        bookmarksListView.setSelection(newBookmarkDisplayOrder);
-    }
-
-    @Override
-    public void onCreateBookmarkFolder(DialogFragment dialogFragment, @NonNull Bitmap favoriteIconBitmap) {
-        // Get the dialog from the dialog fragment.
-        Dialog dialog = dialogFragment.getDialog();
-
-        // Remove the incorrect lint warning below that the dialog might be null.
-        assert dialog != null;
-
-        // Get handles for the views in the dialog fragment.
-        EditText folderNameEditText = dialog.findViewById(R.id.folder_name_edittext);
-        RadioButton defaultIconRadioButton = dialog.findViewById(R.id.default_icon_radiobutton);
-        ImageView defaultIconImageView = dialog.findViewById(R.id.default_icon_imageview);
-
-        // Get new folder name string.
-        String folderNameString = folderNameEditText.getText().toString();
-
-        // Create a folder icon bitmap.
-        Bitmap folderIconBitmap;
-
-        // Set the folder icon bitmap according to the dialog.
-        if (defaultIconRadioButton.isChecked()) {  // Use the default folder icon.
-            // Get the default folder icon drawable.
-            Drawable folderIconDrawable = defaultIconImageView.getDrawable();
-
-            // Convert the folder icon drawable to a bitmap drawable.
-            BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
-
-            // Convert the folder icon bitmap drawable to a bitmap.
-            folderIconBitmap = folderIconBitmapDrawable.getBitmap();
-        } else {  // Use the WebView favorite icon.
-            // Copy the favorite icon bitmap to the folder icon bitmap.
-            folderIconBitmap = favoriteIconBitmap;
-        }
-
-        // Create a folder icon byte array output stream.
-        ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
-
-        // Convert the folder icon bitmap to a byte array.  `0` is for lossless compression (the only option for a PNG).
-        folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
-
-        // Convert the folder icon byte array stream to a byte array.
-        byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
-
-        // Move all the bookmarks down one in the display order.
-        for (int i = 0; i < bookmarksListView.getCount(); i++) {
-            int databaseId = (int) bookmarksListView.getItemIdAtPosition(i);
-            bookmarksDatabaseHelper.updateDisplayOrder(databaseId, i + 1);
-        }
-
-        // Create the folder, which will be placed at the top of the `ListView`.
-        bookmarksDatabaseHelper.createFolder(folderNameString, currentFolder, folderIconByteArray);
-
-        // Update the bookmarks cursor with the current contents of this folder.
-        bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
-
-        // Update the list view.
-        bookmarksCursorAdapter.changeCursor(bookmarksCursor);
-
-        // Scroll to the new folder.
-        bookmarksListView.setSelection(0);
-    }
-
-    @Override
-    public void onSaveBookmark(DialogFragment dialogFragment, int selectedBookmarkDatabaseId, @NonNull Bitmap favoriteIconBitmap) {
-        // Get the dialog from the dialog fragment.
-        Dialog dialog = dialogFragment.getDialog();
-
-        // Remove the incorrect lint warning below that the dialog might be null.
-        assert dialog != null;
-
-        // Get handles for the views from the dialog fragment.
-        EditText bookmarkNameEditText = dialog.findViewById(R.id.bookmark_name_edittext);
-        EditText bookmarkUrlEditText = dialog.findViewById(R.id.bookmark_url_edittext);
-        RadioButton currentIconRadioButton = dialog.findViewById(R.id.current_icon_radiobutton);
-
-        // Store the bookmark strings.
-        String bookmarkNameString = bookmarkNameEditText.getText().toString();
-        String bookmarkUrlString = bookmarkUrlEditText.getText().toString();
-
-        // Update the bookmark.
-        if (currentIconRadioButton.isChecked()) {  // Update the bookmark without changing the favorite icon.
-            bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString);
-        } else {  // Update the bookmark using the WebView favorite icon.
-            // Create a favorite icon byte array output stream.
-            ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
-
-            // Convert the favorite icon bitmap to a byte array.  `0` is for lossless compression (the only option for a PNG).
-            favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
-
-            // Convert the favorite icon byte array stream to a byte array.
-            byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
-
-            //  Update the bookmark and the favorite icon.
-            bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, newFavoriteIconByteArray);
-        }
-
-        // Check to see if the contextual action mode has been created.
-        if (contextualActionMode != null) {
-            // Close the contextual action mode if it is open.
-            contextualActionMode.finish();
-        }
-
-        // Update the bookmarks cursor with the contents of the current folder.
-        bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
-
-        // Update the `ListView`.
-        bookmarksCursorAdapter.changeCursor(bookmarksCursor);
-    }
-
-    @Override
-    public void onSaveBookmarkFolder(DialogFragment dialogFragment, int selectedFolderDatabaseId, @NonNull Bitmap favoriteIconBitmap) {
-        // Get the dialog from the dialog fragment.
-        Dialog dialog = dialogFragment.getDialog();
-
-        // Remove the incorrect lint warning below that the dialog might be null.
-        assert dialog != null;
-
-        // Get handles for the views from the dialog fragment.
-        RadioButton currentFolderIconRadioButton = dialog.findViewById(R.id.current_icon_radiobutton);
-        RadioButton defaultFolderIconRadioButton = dialog.findViewById(R.id.default_icon_radiobutton);
-        ImageView defaultFolderIconImageView = dialog.findViewById(R.id.default_icon_imageview);
-        EditText editFolderNameEditText = dialog.findViewById(R.id.folder_name_edittext);
-
-        // Get the new folder name.
-        String newFolderNameString = editFolderNameEditText.getText().toString();
-
-        // Check if the favorite icon has changed.
-        if (currentFolderIconRadioButton.isChecked()) {  // Only the name has changed.
-            // Update the name in the database.
-            bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString);
-        } else if (!currentFolderIconRadioButton.isChecked() && newFolderNameString.equals(oldFolderNameString)) {  // Only the icon has changed.
-            // Create the new folder icon Bitmap.
-            Bitmap folderIconBitmap;
-
-            // Populate the new folder icon bitmap.
-            if (defaultFolderIconRadioButton.isChecked()) {
-                // Get the default folder icon drawable.
-                Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
-
-                // Convert the folder icon drawable to a bitmap drawable.
-                BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
-
-                // Convert the folder icon bitmap drawable to a bitmap.
-                folderIconBitmap = folderIconBitmapDrawable.getBitmap();
-            } else {  // Use the WebView favorite icon.
-                // Copy the favorite icon bitmap to the folder icon bitmap.
-                folderIconBitmap = favoriteIconBitmap;
-            }
-
-            // Create a folder icon byte array output stream.
-            ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
-
-            // Convert the folder icon bitmap to a byte array.  `0` is for lossless compression (the only option for a PNG).
-            folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
-
-            // Convert the folder icon byte array stream to a byte array.
-            byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
-
-            // Update the folder icon in the database.
-            bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, newFolderIconByteArray);
-        } else {  // The folder icon and the name have changed.
-            // Instantiate the new folder icon `Bitmap`.
-            Bitmap folderIconBitmap;
-
-            // Populate the new folder icon bitmap.
-            if (defaultFolderIconRadioButton.isChecked()) {
-                // Get the default folder icon drawable.
-                Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
-
-                // Convert the folder icon drawable to a bitmap drawable.
-                BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
-
-                // Convert the folder icon bitmap drawable to a bitmap.
-                folderIconBitmap = folderIconBitmapDrawable.getBitmap();
-            } else {  // Use the WebView favorite icon.
-                // Copy the favorite icon bitmap to the folder icon bitmap.
-                folderIconBitmap = favoriteIconBitmap;
-            }
-
-            // Create a folder icon byte array output stream.
-            ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
-
-            // Convert the folder icon bitmap to a byte array.  `0` is for lossless compression (the only option for a PNG).
-            folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
-
-            // Convert the folder icon byte array stream to a byte array.
-            byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
-
-            // Update the folder name and icon in the database.
-            bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString, newFolderIconByteArray);
-        }
-
-        // Update the bookmarks cursor with the current contents of this folder.
-        bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
-
-        // Update the `ListView`.
-        bookmarksCursorAdapter.changeCursor(bookmarksCursor);
-
-        // Close the contextual action mode.
-        contextualActionMode.finish();
-    }
-
-    @Override
-    public void onMoveToFolder(DialogFragment dialogFragment) {
-        // Get the dialog from the dialog fragment.
-        Dialog dialog = dialogFragment.getDialog();
-
-        // Remove the incorrect lint warning below that the dialog might be null.
-        assert dialog != null;
-
-        // Get a handle for the list view from the dialog.
-        ListView folderListView = dialog.findViewById(R.id.move_to_folder_listview);
-
-        // Store a long array of the selected folders.
-        long[] newFolderLongArray = folderListView.getCheckedItemIds();
-
-        // Get the new folder database ID.  Only one folder will be selected.
-        int newFolderDatabaseId = (int) newFolderLongArray[0];
-
-        // Instantiate `newFolderName`.
-        String newFolderName;
-
-        // Set the new folder name.
-        if (newFolderDatabaseId == 0) {
-            // The new folder is the home folder, represented as `""` in the database.
-            newFolderName = "";
-        } else {
-            // Get the new folder name from the database.
-            newFolderName = bookmarksDatabaseHelper.getFolderName(newFolderDatabaseId);
-        }
-
-        // Get a long array with the the database ID of the selected bookmarks.
-        long[] selectedBookmarksLongArray = bookmarksListView.getCheckedItemIds();
-
-        // Move each of the selected bookmarks to the new folder.
-        for (long databaseIdLong : selectedBookmarksLongArray) {
-            // Get `databaseIdInt` for each selected bookmark.
-            int databaseIdInt = (int) databaseIdLong;
-
-            // Move the selected bookmark to the new folder.
-            bookmarksDatabaseHelper.moveToFolder(databaseIdInt, newFolderName);
-        }
-
-        // Update the bookmarks cursor with the current contents of this folder.
-        bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
-
-        // Update the `ListView`.
-        bookmarksCursorAdapter.changeCursor(bookmarksCursor);
-
-        // Close the contextual app bar.
-        contextualActionMode.finish();
-    }
-
-    private int countBookmarkFolderContents(int databaseId) {
-        // Initialize the bookmark counter.
-        int bookmarkCounter = 0;
-
-        // Get the name of the folder.
-        String folderName = bookmarksDatabaseHelper.getFolderName(databaseId);
-
-        // Get the contents of the folder.
-        Cursor folderCursor = bookmarksDatabaseHelper.getBookmarkIds(folderName);
-
-        // Count each of the bookmarks in the folder.
-        for (int i = 0; i < folderCursor.getCount(); i++) {
-            // Move the folder cursor to the current row.
-            folderCursor.moveToPosition(i);
-
-            // Get the database ID of the item.
-            int itemDatabaseId = folderCursor.getInt(folderCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID));
-
-            // If this is a folder, recursively count the contents first.
-            if (bookmarksDatabaseHelper.isFolder(itemDatabaseId)) {
-                // Add the bookmarks from the folder to the running total.
-                bookmarkCounter = bookmarkCounter + countBookmarkFolderContents(itemDatabaseId);
-            }
-
-            // Add the bookmark to the running total.
-            bookmarkCounter++;
-        }
-
-        // Return the bookmark counter.
-        return bookmarkCounter;
-    }
-
-    private void deleteBookmarkFolderContents(int databaseId) {
-        // Get the name of the folder.
-        String folderName = bookmarksDatabaseHelper.getFolderName(databaseId);
-
-        // Get the contents of the folder.
-        Cursor folderCursor = bookmarksDatabaseHelper.getBookmarkIds(folderName);
-
-        // Delete each of the bookmarks in the folder.
-        for (int i = 0; i < folderCursor.getCount(); i++) {
-            // Move the folder cursor to the current row.
-            folderCursor.moveToPosition(i);
-
-            // Get the database ID of the item.
-            int itemDatabaseId = folderCursor.getInt(folderCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID));
-
-            // If this is a folder, recursively delete the contents first.
-            if (bookmarksDatabaseHelper.isFolder(itemDatabaseId)) {
-                deleteBookmarkFolderContents(itemDatabaseId);
-            }
-
-            // Delete the bookmark.
-            bookmarksDatabaseHelper.deleteBookmark(itemDatabaseId);
-        }
-    }
-
-    private void prepareFinish() {
-        // Check to see if a snackbar is currently displayed.  If so, it must be closed before exiting so that a pending delete is completed before reloading the list view in the bookmarks drawer.
-        if ((bookmarksDeletedSnackbar != null) && bookmarksDeletedSnackbar.isShown()) {  // Close the bookmarks deleted snackbar before going home.
-            // Set the close flag.
-            closeActivityAfterDismissingSnackbar = true;
-
-            // Dismiss the snackbar.
-            bookmarksDeletedSnackbar.dismiss();
-        } else {  // Go home immediately.
-            // Update the bookmarks folder for the bookmarks drawer in the main WebView activity.
-            MainWebViewActivity.currentBookmarksFolder = currentFolder;
-
-            // Close the bookmarks drawer and reload the bookmarks ListView when returning to the main WebView activity.
-            MainWebViewActivity.restartFromBookmarksActivity = true;
-
-            // Exit the bookmarks activity.
-            finish();
-        }
-    }
-
-    private void updateMoveIcons() {
-        // Get a long array of the selected bookmarks.
-        long[] selectedBookmarksLongArray = bookmarksListView.getCheckedItemIds();
-
-        // Get the database IDs for the first, last, and selected bookmarks.
-        int selectedBookmarkDatabaseId = (int) selectedBookmarksLongArray[0];
-        int firstBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(0);
-        // bookmarksListView is 0 indexed.
-        int lastBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(bookmarksListView.getCount() - 1);
-
-        // Update the move bookmark up menu item.
-        if (selectedBookmarkDatabaseId == firstBookmarkDatabaseId) {  // The selected bookmark is in the first position.
-            // Disable the move bookmark up menu item.
-            moveBookmarkUpMenuItem.setEnabled(false);
-
-            //  Set the icon.
-            moveBookmarkUpMenuItem.setIcon(R.drawable.move_up_disabled);
-        } else {  // The selected bookmark is not in the first position.
-            // Enable the move bookmark up menu item.
-            moveBookmarkUpMenuItem.setEnabled(true);
-
-            // Set the icon according to the theme.
-            moveBookmarkUpMenuItem.setIcon(R.drawable.move_up_enabled);
-        }
-
-        // Update the move bookmark down menu item.
-        if (selectedBookmarkDatabaseId == lastBookmarkDatabaseId) {  // The selected bookmark is in the last position.
-            // Disable the move bookmark down menu item.
-            moveBookmarkDownMenuItem.setEnabled(false);
-
-            // Set the icon.
-            moveBookmarkDownMenuItem.setIcon(R.drawable.move_down_disabled);
-        } else {  // The selected bookmark is not in the last position.
-            // Enable the move bookmark down menu item.
-            moveBookmarkDownMenuItem.setEnabled(true);
-
-            // Set the icon.
-            moveBookmarkDownMenuItem.setIcon(R.drawable.move_down_enabled);
-        }
-    }
-
-    private void scrollBookmarks(int selectedBookmarkPosition) {
-        // Get the first and last visible bookmark positions.
-        int firstVisibleBookmarkPosition = bookmarksListView.getFirstVisiblePosition();
-        int lastVisibleBookmarkPosition = bookmarksListView.getLastVisiblePosition();
-
-        // Calculate the number of bookmarks per screen.
-        int numberOfBookmarksPerScreen = lastVisibleBookmarkPosition - firstVisibleBookmarkPosition;
-
-        // Scroll with the moved bookmark if necessary.
-        if (selectedBookmarkPosition <= firstVisibleBookmarkPosition) {  // The selected bookmark position is at or above the top of the screen.
-            // Scroll to the selected bookmark position.
-            bookmarksListView.setSelection(selectedBookmarkPosition);
-        } else if (selectedBookmarkPosition >= (lastVisibleBookmarkPosition - 1)) {  // The selected bookmark is at or below the bottom of the screen.
-            // The `-1` handles partial bookmarks displayed at the bottom of the list view.  This command scrolls to display the selected bookmark at the bottom of the screen.
-            // `+1` assures that the entire bookmark will be displayed in situations where only a partial bookmark fits at the bottom of the list view.
-            bookmarksListView.setSelection(selectedBookmarkPosition - numberOfBookmarksPerScreen + 1);
-        }
-    }
-
-    private void loadFolder() {
-        // Update bookmarks cursor with the contents of the bookmarks database for the current folder.
-        bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
-
-        // Setup a `CursorAdapter`.  `this` specifies the `Context`.  `false` disables `autoRequery`.
-        bookmarksCursorAdapter = new CursorAdapter(this, bookmarksCursor, false) {
-            @Override
-            public View newView(Context context, Cursor cursor, ViewGroup parent) {
-                // Inflate the individual item layout.  `false` does not attach it to the root.
-                return getLayoutInflater().inflate(R.layout.bookmarks_activity_item_linearlayout, parent, false);
-            }
-
-            @Override
-            public void bindView(View view, Context context, Cursor cursor) {
-                // Get handles for the views.
-                ImageView bookmarkFavoriteIcon = view.findViewById(R.id.bookmark_favorite_icon);
-                TextView bookmarkNameTextView = view.findViewById(R.id.bookmark_name);
-
-                // Get the favorite icon byte array from the `Cursor`.
-                byte[] favoriteIconByteArray = cursor.getBlob(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.FAVORITE_ICON));
-
-                // Convert the byte array to a `Bitmap` beginning at the first byte and ending at the last.
-                Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
-
-                // Display the bitmap in `bookmarkFavoriteIcon`.
-                bookmarkFavoriteIcon.setImageBitmap(favoriteIconBitmap);
-
-                // Get the bookmark name from the cursor and display it in `bookmarkNameTextView`.
-                String bookmarkNameString = cursor.getString(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_NAME));
-                bookmarkNameTextView.setText(bookmarkNameString);
-
-                // Make the font bold for folders.
-                if (cursor.getInt(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.IS_FOLDER)) == 1) {
-                    bookmarkNameTextView.setTypeface(Typeface.DEFAULT_BOLD);
-                } else {  // Reset the font to default for normal bookmarks.
-                    bookmarkNameTextView.setTypeface(Typeface.DEFAULT);
-                }
-            }
-        };
-
-        // Populate the list view with the adapter.
-        bookmarksListView.setAdapter(bookmarksCursorAdapter);
-
-        // Set the `AppBar` title.
-        if (currentFolder.isEmpty()) {
-            appBar.setTitle(R.string.bookmarks);
-        } else {
-            appBar.setTitle(currentFolder);
-        }
-    }
-
-    @Override
-    public void onDestroy() {
-        // Close the bookmarks cursor and database.
-        bookmarksCursor.close();
-        bookmarksDatabaseHelper.close();
-
-        // Run the default commands.
-        super.onDestroy();
-    }
-}