]> gitweb.stoutner.com Git - PrivacyBrowserAndroid.git/blobdiff - app/src/main/java/com/stoutner/privacybrowser/activities/BookmarksDatabaseViewActivity.java
Migrate the remaining classes to Kotlin. https://redmine.stoutner.com/issues/989
[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / activities / BookmarksDatabaseViewActivity.java
diff --git a/app/src/main/java/com/stoutner/privacybrowser/activities/BookmarksDatabaseViewActivity.java b/app/src/main/java/com/stoutner/privacybrowser/activities/BookmarksDatabaseViewActivity.java
deleted file mode 100644 (file)
index 2309a56..0000000
+++ /dev/null
@@ -1,935 +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.content.res.Configuration;
-import android.database.Cursor;
-import android.database.MatrixCursor;
-import android.database.MergeCursor;
-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.AdapterView;
-import android.widget.EditText;
-import android.widget.ImageView;
-import android.widget.ListView;
-import android.widget.RadioButton;
-import android.widget.ResourceCursorAdapter;
-import android.widget.Spinner;
-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;  // The AndroidX toolbar must be used until the minimum API is >= 21.
-import androidx.core.content.ContextCompat;
-import androidx.cursoradapter.widget.CursorAdapter;
-import androidx.fragment.app.DialogFragment;  // The AndroidX dialog fragment must be used or an error is produced on API <=22.
-import androidx.preference.PreferenceManager;
-
-import com.google.android.material.snackbar.Snackbar;
-
-import com.stoutner.privacybrowser.R;
-import com.stoutner.privacybrowser.dialogs.EditBookmarkDatabaseViewDialog;
-import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDatabaseViewDialog;
-import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
-
-import java.io.ByteArrayOutputStream;
-import java.util.Arrays;
-
-public class BookmarksDatabaseViewActivity extends AppCompatActivity implements EditBookmarkDatabaseViewDialog.EditBookmarkDatabaseViewListener,
-        EditBookmarkFolderDatabaseViewDialog.EditBookmarkFolderDatabaseViewListener {
-    // Define the class constants.
-    private static final int ALL_FOLDERS_DATABASE_ID = -2;
-    public static final int HOME_FOLDER_DATABASE_ID = -1;
-
-    // Define the saved instance state constants.
-    private final String CURRENT_FOLDER_DATABASE_ID = "current_folder_database_id";
-    private final String CURRENT_FOLDER_NAME = "current_folder_name";
-    private final String SORT_BY_DISPLAY_ORDER = "sort_by_display_order";
-
-    // Define the class variables.
-    private int currentFolderDatabaseId;
-    private String currentFolderName;
-    private boolean sortByDisplayOrder;
-    private BookmarksDatabaseHelper bookmarksDatabaseHelper;
-    private Cursor bookmarksCursor;
-    private CursorAdapter bookmarksCursorAdapter;
-    private String oldFolderNameString;
-    private Snackbar bookmarksDeletedSnackbar;
-    private boolean closeActivityAfterDismissingSnackbar;
-
-    @Override
-    public 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();
-
-        // Get the favorite icon byte array.
-        byte[] favoriteIconByteArray = launchingIntent.getByteArrayExtra("favorite_icon_byte_array");
-
-        // Remove the incorrect lint warning below that the favorite icon byte array might be null.
-        assert favoriteIconByteArray != null;
-
-        // Convert the favorite icon byte array to a bitmap and store it in a class variable.
-        Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
-
-        // Set the view according to the theme.
-        if (bottomAppBar) {
-            // Set the content view.
-            setContentView(R.layout.bookmarks_databaseview_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_databaseview_top_appbar);
-        }
-
-        // Get a handle for the toolbar.
-        Toolbar toolbar = findViewById(R.id.bookmarks_databaseview_toolbar);
-
-        // Set the support action bar.
-        setSupportActionBar(toolbar);
-
-        // Get a handle for the action bar.
-        ActionBar actionBar = getSupportActionBar();
-
-        // Remove the incorrect lint warning that the action bar might be null.
-        assert actionBar != null;
-
-        // Display the spinner and the back arrow in the action bar.
-        actionBar.setCustomView(R.layout.spinner);
-        actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_HOME_AS_UP);
-
-        // 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 handler.
-        bookmarksDatabaseHelper = new BookmarksDatabaseHelper(this);
-
-        // Create a matrix cursor column name string array.
-        String[] matrixCursorColumnNames = {BookmarksDatabaseHelper.ID, BookmarksDatabaseHelper.BOOKMARK_NAME};
-
-        // Create the matrix cursor in a try-with-resources block so it is correctly closed when finished.
-        try (MatrixCursor matrixCursor = new MatrixCursor(matrixCursorColumnNames)) {
-            // Add "All Folders" and "Home Folder" to the matrix cursor.
-            matrixCursor.addRow(new Object[]{ALL_FOLDERS_DATABASE_ID, getString(R.string.all_folders)});
-            matrixCursor.addRow(new Object[]{HOME_FOLDER_DATABASE_ID, getString(R.string.home_folder)});
-
-            // Get a cursor with the list of all the folders.
-            Cursor foldersCursor = bookmarksDatabaseHelper.getAllFolders();
-
-            // Combine the matrix cursor and the folders cursor.
-            MergeCursor foldersMergeCursor = new MergeCursor(new Cursor[]{matrixCursor, foldersCursor});
-
-
-            // Get the default folder bitmap.  `ContextCompat` must be used until the minimum API >= 21.
-            Drawable defaultFolderDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_blue_bitmap);
-
-            // Cast the default folder drawable to a bitmap drawable.
-            BitmapDrawable defaultFolderBitmapDrawable = (BitmapDrawable) defaultFolderDrawable;
-
-            // Remove the incorrect lint warning that `.getBitmap()` might be null.
-            assert defaultFolderBitmapDrawable != null;
-
-            // Convert the default folder bitmap drawable to a bitmap.
-            Bitmap defaultFolderBitmap = defaultFolderBitmapDrawable.getBitmap();
-
-
-            // Create a resource cursor adapter for the spinner.
-            ResourceCursorAdapter foldersCursorAdapter = new ResourceCursorAdapter(this, R.layout.appbar_spinner_item, foldersMergeCursor, 0) {
-                @Override
-                public void bindView(View view, Context context, Cursor cursor) {
-                    // Get handles for the spinner views.
-                    ImageView spinnerItemImageView = view.findViewById(R.id.spinner_item_imageview);
-                    TextView spinnerItemTextView = view.findViewById(R.id.spinner_item_textview);
-
-                    // Set the folder icon according to the type.
-                    if (foldersMergeCursor.getPosition() > 1) {  // Set a user folder icon.
-                        // Initialize a default folder icon byte array output stream.
-                        ByteArrayOutputStream defaultFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
-
-                        // Covert the default folder bitmap to a PNG and store it in the output stream.  `0` is for lossless compression (the only option for a PNG).
-                        defaultFolderBitmap.compress(Bitmap.CompressFormat.PNG, 0, defaultFolderIconByteArrayOutputStream);
-
-                        // Convert the default folder icon output stream to a byte array.
-                        byte[] defaultFolderIconByteArray = defaultFolderIconByteArrayOutputStream.toByteArray();
-
-
-                        // Get the folder icon byte array from the cursor.
-                        byte[] folderIconByteArray = 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 folderIconBitmap = BitmapFactory.decodeByteArray(folderIconByteArray, 0, folderIconByteArray.length);
-
-
-                        // Set the icon according to the type.
-                        if (Arrays.equals(folderIconByteArray, defaultFolderIconByteArray)) {  // The default folder icon is used.
-                            // Set a smaller and darker folder icon, which works well with the spinner.
-                            spinnerItemImageView.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.folder_dark_blue));
-                        } else {  // A custom folder icon is uses.
-                            // Set the folder image stored in the cursor.
-                            spinnerItemImageView.setImageBitmap(folderIconBitmap);
-                        }
-                    } else {  // Set the `All Folders` or `Home Folder` icon.
-                        // Set the gray folder image.  `ContextCompat` must be used until the minimum API >= 21.
-                        spinnerItemImageView.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.folder_gray));
-                    }
-
-                    // Set the text view to display the folder name.
-                    spinnerItemTextView.setText(cursor.getString(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_NAME)));
-                }
-            };
-
-            // Set the resource cursor adapter drop drown view resource.
-            foldersCursorAdapter.setDropDownViewResource(R.layout.appbar_spinner_dropdown_item);
-
-            // Get a handle for the folder spinner and set the adapter.
-            Spinner folderSpinner = findViewById(R.id.spinner);
-            folderSpinner.setAdapter(foldersCursorAdapter);
-
-            // Wait to set the on item selected listener until the spinner has been inflated.  Otherwise the activity will crash on restart.
-            folderSpinner.post(() -> {
-                // Handle taps on the spinner dropdown.
-                folderSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
-                    @Override
-                    public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
-                        // Store the current folder database ID.
-                        currentFolderDatabaseId = (int) id;
-
-                        // Get a handle for the selected view.
-                        TextView selectedFolderTextView = findViewById(R.id.spinner_item_textview);
-
-                        // Store the current folder name.
-                        currentFolderName = selectedFolderTextView.getText().toString();
-
-                        // Update the list view.
-                        updateBookmarksListView();
-                    }
-
-                    @Override
-                    public void onNothingSelected(AdapterView<?> parent) {
-                        // Do nothing.
-                    }
-                });
-            });
-
-
-            // Get a handle for the bookmarks listview.
-            ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
-
-            // Check to see if the activity was restarted.
-            if (savedInstanceState == null) {  // The activity was not restarted.
-                // Set the default current folder database ID.
-                currentFolderDatabaseId = ALL_FOLDERS_DATABASE_ID;
-            } else {  // The activity was restarted.
-                // Restore the class variables from the saved instance state.
-                currentFolderDatabaseId = savedInstanceState.getInt(CURRENT_FOLDER_DATABASE_ID);
-                currentFolderName = savedInstanceState.getString(CURRENT_FOLDER_NAME);
-                sortByDisplayOrder = savedInstanceState.getBoolean(SORT_BY_DISPLAY_ORDER);
-
-                // Update the spinner if the home folder is selected.  Android handles this by default for the main cursor but not the matrix cursor.
-                if (currentFolderDatabaseId == HOME_FOLDER_DATABASE_ID) {
-                    folderSpinner.setSelection(1);
-                }
-            }
-
-            // Update the bookmarks listview.
-            updateBookmarksListView();
-
-            // Setup a `CursorAdapter` with `this` 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_databaseview_item_linearlayout, parent, false);
-                }
-
-                @Override
-                public void bindView(View view, Context context, Cursor cursor) {
-                    boolean isFolder = (cursor.getInt(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.IS_FOLDER)) == 1);
-
-                    // Get the database ID from the `Cursor` and display it in `bookmarkDatabaseIdTextView`.
-                    int bookmarkDatabaseId = cursor.getInt(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID));
-                    TextView bookmarkDatabaseIdTextView = view.findViewById(R.id.bookmarks_databaseview_database_id);
-                    bookmarkDatabaseIdTextView.setText(String.valueOf(bookmarkDatabaseId));
-
-                    // 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 beginning at the first byte and ending at the last.
-                    Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
-                    // Display the bitmap in `bookmarkFavoriteIcon`.
-                    ImageView bookmarkFavoriteIcon = view.findViewById(R.id.bookmarks_databaseview_favorite_icon);
-                    bookmarkFavoriteIcon.setImageBitmap(favoriteIconBitmap);
-
-                    // Get the bookmark name from the `Cursor` and display it in `bookmarkNameTextView`.
-                    String bookmarkNameString = cursor.getString(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_NAME));
-                    TextView bookmarkNameTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_name);
-                    bookmarkNameTextView.setText(bookmarkNameString);
-
-                    // Make the font bold for folders.
-                    if (isFolder) {
-                        // The first argument is `null` prevent changing of the font.
-                        bookmarkNameTextView.setTypeface(null, Typeface.BOLD);
-                    } else {  // Reset the font to default.
-                        bookmarkNameTextView.setTypeface(Typeface.DEFAULT);
-                    }
-
-                    // Get the bookmark URL form the `Cursor` and display it in `bookmarkUrlTextView`.
-                    String bookmarkUrlString = cursor.getString(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_URL));
-                    TextView bookmarkUrlTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_url);
-                    bookmarkUrlTextView.setText(bookmarkUrlString);
-
-                    // Hide the URL if the bookmark is a folder.
-                    if (isFolder) {
-                        bookmarkUrlTextView.setVisibility(View.GONE);
-                    } else {
-                        bookmarkUrlTextView.setVisibility(View.VISIBLE);
-                    }
-
-                    // Get the display order from the `Cursor` and display it in `bookmarkDisplayOrderTextView`.
-                    int bookmarkDisplayOrder = cursor.getInt(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.DISPLAY_ORDER));
-                    TextView bookmarkDisplayOrderTextView = view.findViewById(R.id.bookmarks_databaseview_display_order);
-                    bookmarkDisplayOrderTextView.setText(String.valueOf(bookmarkDisplayOrder));
-
-                    // Get the parent folder from the `Cursor` and display it in `bookmarkParentFolder`.
-                    String bookmarkParentFolder = cursor.getString(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.PARENT_FOLDER));
-                    ImageView parentFolderImageView = view.findViewById(R.id.bookmarks_databaseview_parent_folder_icon);
-                    TextView bookmarkParentFolderTextView = view.findViewById(R.id.bookmarks_databaseview_parent_folder);
-
-                    // Make the folder name gray if it is the home folder.
-                    if (bookmarkParentFolder.isEmpty()) {
-                        parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_gray));
-                        bookmarkParentFolderTextView.setText(R.string.home_folder);
-                        bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_500));
-                    } else {
-                        parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_dark_blue));
-                        bookmarkParentFolderTextView.setText(bookmarkParentFolder);
-
-                        // Get the current theme status.
-                        int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
-
-                        // Set the text color according to the theme.
-                        if (currentThemeStatus == Configuration.UI_MODE_NIGHT_YES) {
-                            // This color is a little darker than the default night mode text.  But the effect is rather nice.
-                            bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_300));
-                        } else {
-                            bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.black));
-                        }
-                    }
-                }
-            };
-
-
-            // Update the ListView.
-            bookmarksListView.setAdapter(bookmarksCursorAdapter);
-
-            // Set a listener to edit a bookmark when it is tapped.
-            bookmarksListView.setOnItemClickListener((AdapterView<?> parent, View view, int position, long id) -> {
-                // Convert the database ID to an int.
-                int databaseId = (int) id;
-
-                // Show the edit bookmark or edit bookmark folder dialog.
-                if (bookmarksDatabaseHelper.isFolder(databaseId)) {
-                    // Save the current folder name, which is used in `onSaveBookmarkFolder()`.
-                    oldFolderNameString = bookmarksCursor.getString(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_NAME));
-
-                    // Show the edit bookmark folder dialog.
-                    DialogFragment editBookmarkFolderDatabaseViewDialog = EditBookmarkFolderDatabaseViewDialog.folderDatabaseId(databaseId, favoriteIconBitmap);
-                    editBookmarkFolderDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_folder));
-                } else {
-                    // Show the edit bookmark dialog.
-                    DialogFragment editBookmarkDatabaseViewDialog = EditBookmarkDatabaseViewDialog.bookmarkDatabaseId(databaseId, favoriteIconBitmap);
-                    editBookmarkDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_bookmark));
-                }
-            });
-
-            // Handle long presses on the list view.
-            bookmarksListView.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() {
-                // Instantiate the common variables.
-                MenuItem selectAllMenuItem;
-                MenuItem deleteMenuItem;
-                boolean deletingBookmarks;
-
-                @Override
-                public boolean onCreateActionMode(ActionMode mode, Menu menu) {
-                    // Inflate the menu for the contextual app bar.
-                    getMenuInflater().inflate(R.menu.bookmarks_databaseview_context_menu, menu);
-
-                    // Set the title.
-                    mode.setTitle(R.string.bookmarks);
-
-                    // Get handles for the menu items.
-                    selectAllMenuItem = menu.findItem(R.id.select_all);
-                    deleteMenuItem = menu.findItem(R.id.delete);
-
-                    // Disable the delete menu item if a delete is pending.
-                    deleteMenuItem.setEnabled(!deletingBookmarks);
-
-                    // Get the number of currently selected bookmarks.
-                    int numberOfSelectedBookmarks = bookmarksListView.getCheckedItemCount();
-
-                    // Set the action mode subtitle according to the number of selected bookmarks.  This must be set here or it will be missing if the activity is restarted.
-                    mode.setSubtitle(getString(R.string.selected) + numberOfSelectedBookmarks);
-
-                    // Do not show the select all menu item if all the bookmarks are already checked.
-                    if (bookmarksListView.getCheckedItemCount() == bookmarksListView.getCount()) {
-                        selectAllMenuItem.setVisible(false);
-                    }
-
-                    // Make it so.
-                    return true;
-                }
-
-                @Override
-                public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
-                    // Do nothing.
-                    return false;
-                }
-
-                @Override
-                public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) {
-                    // Calculate the number of selected bookmarks.
-                    int numberOfSelectedBookmarks = bookmarksListView.getCheckedItemCount();
-
-                    // Only run the commands if at least one bookmark is selected.  Otherwise, a context menu with 0 selected bookmarks is briefly displayed.
-                    if (numberOfSelectedBookmarks > 0) {
-                        // Update the action mode subtitle according to the number of selected bookmarks.
-                        mode.setSubtitle(getString(R.string.selected) + numberOfSelectedBookmarks);
-
-                        // Only show the select all menu item if all of the bookmarks are not already selected.
-                        selectAllMenuItem.setVisible(bookmarksListView.getCheckedItemCount() != bookmarksListView.getCount());
-
-                        // Convert the database ID to an int.
-                        int databaseId = (int) id;
-
-                        // If a folder was selected, also select all the contents.
-                        if (checked && bookmarksDatabaseHelper.isFolder(databaseId)) {
-                            selectAllBookmarksInFolder(databaseId);
-                        }
-
-                        // Do not allow a bookmark to be deselected if the folder is selected.
-                        if (!checked) {
-                            // Get the folder name.
-                            String folderName = bookmarksDatabaseHelper.getParentFolderName((int) id);
-
-                            // If the bookmark is not in the root folder, check to see if the folder is selected.
-                            if (!folderName.isEmpty()) {
-                                // Get the database ID of the folder.
-                                int folderDatabaseId = bookmarksDatabaseHelper.getFolderDatabaseId(folderName);
-
-                                // Move the bookmarks cursor to the first position.
-                                bookmarksCursor.moveToFirst();
-
-                                // Initialize the folder position variable.
-                                int folderPosition = -1;
-
-                                // Get the position of the folder in the bookmarks cursor.
-                                while ((folderPosition < 0) && (bookmarksCursor.getPosition() < bookmarksCursor.getCount())) {
-                                    // Check if the folder database ID matches the bookmark database ID.
-                                    if (folderDatabaseId == bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID))) {
-                                        // Get the folder position.
-                                        folderPosition = bookmarksCursor.getPosition();
-
-                                        // Check if the folder is selected.
-                                        if (bookmarksListView.isItemChecked(folderPosition)) {
-                                            // Reselect the bookmark.
-                                            bookmarksListView.setItemChecked(position, true);
-
-                                            // Display a snackbar explaining why the bookmark cannot be deselected.
-                                            Snackbar.make(bookmarksListView, R.string.cannot_deselect_bookmark, Snackbar.LENGTH_LONG).show();
-                                        }
-                                    }
-
-                                    // Increment the bookmarks cursor.
-                                    bookmarksCursor.moveToNext();
-                                }
-                            }
-                        }
-                    }
-                }
-
-                @Override
-                public boolean onActionItemClicked(ActionMode mode, MenuItem menuItem) {
-                    // Get a the menu item ID.
-                    int menuItemId = menuItem.getItemId();
-
-                    // Run the command that corresponds to the selected menu item.
-                    if (menuItemId == R.id.select_all) {  // Select all the bookmarks.
-                        // 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.delete) {  // Delete the selected bookmarks.
-                        // 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.
-                        long[] selectedBookmarksIdsLongArray = bookmarksListView.getCheckedItemIds();
-
-                        // 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.
-                        SparseBooleanArray selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions().clone();
-
-                        // Update the bookmarks cursor with the current contents of the bookmarks database except for the specified database IDs.
-                        switch (currentFolderDatabaseId) {
-                            // Get a cursor with all the folders.
-                            case ALL_FOLDERS_DATABASE_ID:
-                                if (sortByDisplayOrder) {
-                                    bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray);
-                                } else {
-                                    bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksExcept(selectedBookmarksIdsLongArray);
-                                }
-                                break;
-
-                            // Get a cursor for the home folder.
-                            case HOME_FOLDER_DATABASE_ID:
-                                if (sortByDisplayOrder) {
-                                    bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, "");
-                                } else {
-                                    bookmarksCursor = bookmarksDatabaseHelper.getBookmarksExcept(selectedBookmarksIdsLongArray, "");
-                                }
-                                break;
-
-                            // Display the selected folder.
-                            default:
-                                // Get a cursor for the selected folder.
-                                if (sortByDisplayOrder) {
-                                    bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, currentFolderName);
-                                } else {
-                                    bookmarksCursor = bookmarksDatabaseHelper.getBookmarksExcept(selectedBookmarksIdsLongArray, currentFolderName);
-                                }
-                        }
-
-                        // Update the list view.
-                        bookmarksCursorAdapter.changeCursor(bookmarksCursor);
-
-                        // Create a Snackbar with the number of deleted bookmarks.
-                        bookmarksDeletedSnackbar = Snackbar.make(findViewById(R.id.bookmarks_databaseview_coordinatorlayout),
-                                        getString(R.string.bookmarks_deleted) + selectedBookmarksIdsLongArray.length, 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 list view with the current contents of the bookmarks database, including the "deleted bookmarks.
-                                            updateBookmarksListView();
-
-                                            // 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 selected bookmark.
-                                                bookmarksDatabaseHelper.deleteBookmark(databaseIdInt);
-                                            }
-                                        }
-
-                                        // Reset the deleting bookmarks flag.
-                                        deletingBookmarks = false;
-
-                                        // Enable the delete menu item.
-                                        deleteMenuItem.setEnabled(true);
-
-                                        // Close the activity if back has been pressed.
-                                        if (closeActivityAfterDismissingSnackbar) {
-                                            finish();
-                                        }
-                                    }
-                                });
-
-                        // Show the Snackbar.
-                        bookmarksDeletedSnackbar.show();
-                    }
-
-                    // Consume the click.
-                    return false;
-                }
-
-                @Override
-                public void onDestroyActionMode(ActionMode mode) {
-                    // Do nothing.
-                }
-            });
-        }
-    }
-
-    @Override
-    public boolean onCreateOptionsMenu(Menu menu) {
-        // Inflate the menu.
-        getMenuInflater().inflate(R.menu.bookmarks_databaseview_options_menu, menu);
-
-        // Get a handle for the sort menu item.
-        MenuItem sortMenuItem = menu.findItem(R.id.sort);
-
-        // Change the sort menu item icon if the listview is sorted by display order, which restores the state after a restart.
-        if (sortByDisplayOrder) {
-            sortMenuItem.setIcon(R.drawable.sort_selected);
-        }
-
-        // Success.
-        return true;
-    }
-
-    @Override
-    public boolean onOptionsItemSelected(MenuItem menuItem) {
-        // Get the menu item ID.
-        int menuItemId = menuItem.getItemId();
-
-        // Run the command that corresponds to the selected menu item.
-        if (menuItemId == android.R.id.home) {  // Go Home.  The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
-            // Prepare to finish the activity.
-            prepareFinish();
-        } else if (menuItemId == R.id.sort) {  // Toggle the sort mode.
-            // Update the sort by display order tracker.
-            sortByDisplayOrder = !sortByDisplayOrder;
-
-            // Get a handle for the bookmarks list view.
-            ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
-
-            // Update the icon and display a snackbar.
-            if (sortByDisplayOrder) {  // Sort by display order.
-                // Update the icon.
-                menuItem.setIcon(R.drawable.sort_selected);
-
-                // Display a Snackbar indicating the current sort type.
-                Snackbar.make(bookmarksListView, R.string.sorted_by_display_order, Snackbar.LENGTH_SHORT).show();
-            } else {  // Sort by database id.
-                // Update the icon.
-                menuItem.setIcon(R.drawable.sort);
-
-                // Display a Snackbar indicating the current sort type.
-                Snackbar.make(bookmarksListView, R.string.sorted_by_database_id, Snackbar.LENGTH_SHORT).show();
-            }
-
-            // Update the list view.
-            updateBookmarksListView();
-        }
-
-        // Consume the event.
-        return true;
-    }
-
-    @Override
-    public void onSaveInstanceState (@NonNull Bundle savedInstanceState) {
-        // Run the default commands.
-        super.onSaveInstanceState(savedInstanceState);
-
-        // Store the class variables in the bundle.
-        savedInstanceState.putInt(CURRENT_FOLDER_DATABASE_ID, currentFolderDatabaseId);
-        savedInstanceState.putString(CURRENT_FOLDER_NAME, currentFolderName);
-        savedInstanceState.putBoolean(SORT_BY_DISPLAY_ORDER, sortByDisplayOrder);
-    }
-
-    private void prepareFinish() {
-        // Check to see if a snackbar is currently displayed.  If so, it must be closed before existing so that a pending delete is completed before reloading the list view in the bookmarks activity.
-        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 current folder in the bookmarks activity.
-            if ((currentFolderDatabaseId == ALL_FOLDERS_DATABASE_ID) || (currentFolderDatabaseId == HOME_FOLDER_DATABASE_ID)) {  // All folders or the the home folder are currently displayed.
-                // Load the home folder.
-                BookmarksActivity.currentFolder = "";
-            } else {  // A subfolder is currently displayed.
-                // Load the current folder.
-                BookmarksActivity.currentFolder = currentFolderName;
-            }
-
-            // Reload the bookmarks list view when returning to the bookmarks activity.
-            BookmarksActivity.restartFromBookmarksDatabaseViewActivity = true;
-
-            // Exit the bookmarks database view activity.
-            finish();
-        }
-    }
-
-    private void updateBookmarksListView() {
-        // Populate the bookmarks list view based on the spinner selection.
-        switch (currentFolderDatabaseId) {
-            // Get a cursor with all the folders.
-            case ALL_FOLDERS_DATABASE_ID:
-                if (sortByDisplayOrder) {
-                    bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksByDisplayOrder();
-                } else {
-                    bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks();
-                }
-                break;
-
-            // Get a cursor for the home folder.
-            case HOME_FOLDER_DATABASE_ID:
-                if (sortByDisplayOrder) {
-                    bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder("");
-                } else {
-                    bookmarksCursor = bookmarksDatabaseHelper.getBookmarks("");
-                }
-                break;
-
-            // Display the selected folder.
-            default:
-                // Get a cursor for the selected folder.
-                if (sortByDisplayOrder) {
-                    bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolderName);
-                } else {
-                    bookmarksCursor = bookmarksDatabaseHelper.getBookmarks(currentFolderName);
-                }
-        }
-
-        // Update the cursor adapter if it isn't null, which happens when the activity is restarted.
-        if (bookmarksCursorAdapter != null) {
-            bookmarksCursorAdapter.changeCursor(bookmarksCursor);
-        }
-    }
-
-    private void selectAllBookmarksInFolder(int folderId) {
-        // Get a handle for the bookmarks list view.
-        ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
-
-        // Get the folder name.
-        String folderName = bookmarksDatabaseHelper.getFolderName(folderId);
-
-        // Get a cursor with the contents of the folder.
-        Cursor folderCursor = bookmarksDatabaseHelper.getBookmarks(folderName);
-
-        // Move to the beginning of the cursor.
-        folderCursor.moveToFirst();
-
-        while (folderCursor.getPosition() < folderCursor.getCount()) {
-            // Get the bookmark database ID.
-            int bookmarkId = folderCursor.getInt(folderCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID));
-
-            // Move the bookmarks cursor to the first position.
-            bookmarksCursor.moveToFirst();
-
-            // Initialize the bookmark position variable.
-            int bookmarkPosition = -1;
-
-            // Get the position of this bookmark in the bookmarks cursor.
-            while ((bookmarkPosition < 0) && (bookmarksCursor.getPosition() < bookmarksCursor.getCount())) {
-                // Check if the bookmark IDs match.
-                if (bookmarkId == bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID))) {
-                    // Get the bookmark position.
-                    bookmarkPosition = bookmarksCursor.getPosition();
-
-                    // If this bookmark is a folder, select all the bookmarks inside it.
-                    if (bookmarksDatabaseHelper.isFolder(bookmarkId)) {
-                        selectAllBookmarksInFolder(bookmarkId);
-                    }
-
-                    // Select the bookmark.
-                    bookmarksListView.setItemChecked(bookmarkPosition, true);
-                }
-
-                // Increment the bookmarks cursor position.
-                bookmarksCursor.moveToNext();
-            }
-
-            // Move to the next position.
-            folderCursor.moveToNext();
-        }
-    }
-
-    @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 dialog fragment.
-        RadioButton currentIconRadioButton = dialog.findViewById(R.id.current_icon_radiobutton);
-        EditText bookmarkNameEditText = dialog.findViewById(R.id.bookmark_name_edittext);
-        EditText bookmarkUrlEditText = dialog.findViewById(R.id.bookmark_url_edittext);
-        Spinner folderSpinner = dialog.findViewById(R.id.bookmark_folder_spinner);
-        EditText displayOrderEditText = dialog.findViewById(R.id.bookmark_display_order_edittext);
-
-        // Extract the bookmark information.
-        String bookmarkNameString = bookmarkNameEditText.getText().toString();
-        String bookmarkUrlString = bookmarkUrlEditText.getText().toString();
-        int folderDatabaseId = (int) folderSpinner.getSelectedItemId();
-        int displayOrderInt = Integer.parseInt(displayOrderEditText.getText().toString());
-
-        // Instantiate the parent folder name `String`.
-        String parentFolderNameString;
-
-        // Set the parent folder name.
-        if (folderDatabaseId == HOME_FOLDER_DATABASE_ID) {  // The home folder is selected.  Use `""`.
-            parentFolderNameString = "";
-        } else {  // Get the parent folder name from the database.
-            parentFolderNameString = bookmarksDatabaseHelper.getFolderName(folderDatabaseId);
-        }
-
-        // Update the bookmark.
-        if (currentIconRadioButton.isChecked()) {  // Update the bookmark without changing the favorite icon.
-            bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt);
-        } 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, parentFolderNameString, displayOrderInt, newFavoriteIconByteArray);
-        }
-
-        // Update the list view.
-        updateBookmarksListView();
-    }
-
-    @Override
-    public void onSaveBookmarkFolder(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 dialog fragment.
-        RadioButton currentIconRadioButton = dialog.findViewById(R.id.current_icon_radiobutton);
-        RadioButton defaultIconRadioButton = dialog.findViewById(R.id.default_icon_radiobutton);
-        ImageView defaultIconImageView = dialog.findViewById(R.id.default_icon_imageview);
-        EditText folderNameEditText = dialog.findViewById(R.id.folder_name_edittext);
-        Spinner parentFolderSpinner = dialog.findViewById(R.id.parent_folder_spinner);
-        EditText displayOrderEditText = dialog.findViewById(R.id.display_order_edittext);
-
-        // Extract the folder information.
-        String newFolderNameString = folderNameEditText.getText().toString();
-        int parentFolderDatabaseId = (int) parentFolderSpinner.getSelectedItemId();
-        int displayOrderInt = Integer.parseInt(displayOrderEditText.getText().toString());
-
-        // Instantiate the parent folder name `String`.
-        String parentFolderNameString;
-
-        // Set the parent folder name.
-        if (parentFolderDatabaseId == HOME_FOLDER_DATABASE_ID) {  // The home folder is selected.  Use `""`.
-            parentFolderNameString = "";
-        } else {  // Get the parent folder name from the database.
-            parentFolderNameString = bookmarksDatabaseHelper.getFolderName(parentFolderDatabaseId);
-        }
-
-        // Update the folder.
-        if (currentIconRadioButton.isChecked()) {  // Update the folder without changing the favorite icon.
-            bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt);
-        } else {  // Update the folder and the icon.
-            // Create the new folder icon Bitmap.
-            Bitmap folderIconBitmap;
-
-            // Populate the new folder icon bitmap.
-            if (defaultIconRadioButton.isChecked()) {
-                // 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.
-                // Get a copy of the favorite 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 and the icon.
-            bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt, newFolderIconByteArray);
-        }
-
-        // Update the list view.
-        updateBookmarksListView();
-    }
-
-    @Override
-    public void onDestroy() {
-        // Close the bookmarks cursor and database.
-        bookmarksCursor.close();
-        bookmarksDatabaseHelper.close();
-
-        // Run the default commands.
-        super.onDestroy();
-    }
-}