2 * Copyright © 2016-2021 Soren Stoutner <soren@stoutner.com>.
4 * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
6 * Privacy Browser is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
11 * Privacy Browser is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with Privacy Browser. If not, see <http://www.gnu.org/licenses/>.
20 package com.stoutner.privacybrowser.activities;
22 import android.annotation.SuppressLint;
23 import android.app.Dialog;
24 import android.content.Context;
25 import android.content.Intent;
26 import android.content.SharedPreferences;
27 import android.content.res.Configuration;
28 import android.database.Cursor;
29 import android.database.MatrixCursor;
30 import android.database.MergeCursor;
31 import android.graphics.Bitmap;
32 import android.graphics.BitmapFactory;
33 import android.graphics.Typeface;
34 import android.graphics.drawable.BitmapDrawable;
35 import android.graphics.drawable.Drawable;
36 import android.os.Bundle;
37 import android.preference.PreferenceManager;
38 import android.util.SparseBooleanArray;
39 import android.view.ActionMode;
40 import android.view.Menu;
41 import android.view.MenuItem;
42 import android.view.View;
43 import android.view.ViewGroup;
44 import android.view.WindowManager;
45 import android.widget.AbsListView;
46 import android.widget.AdapterView;
47 import android.widget.EditText;
48 import android.widget.ImageView;
49 import android.widget.ListView;
50 import android.widget.RadioButton;
51 import android.widget.ResourceCursorAdapter;
52 import android.widget.Spinner;
53 import android.widget.TextView;
55 import androidx.annotation.NonNull;
56 import androidx.appcompat.app.ActionBar;
57 import androidx.appcompat.app.AppCompatActivity;
58 import androidx.appcompat.widget.Toolbar; // The AndroidX toolbar must be used until the minimum API is >= 21.
59 import androidx.core.content.ContextCompat;
60 import androidx.cursoradapter.widget.CursorAdapter;
61 import androidx.fragment.app.DialogFragment; // The AndroidX dialog fragment must be used or an error is produced on API <=22.
63 import com.google.android.material.snackbar.Snackbar;
65 import com.stoutner.privacybrowser.R;
66 import com.stoutner.privacybrowser.dialogs.EditBookmarkDatabaseViewDialog;
67 import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDatabaseViewDialog;
68 import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
70 import java.io.ByteArrayOutputStream;
71 import java.util.Arrays;
73 public class BookmarksDatabaseViewActivity extends AppCompatActivity implements EditBookmarkDatabaseViewDialog.EditBookmarkDatabaseViewListener,
74 EditBookmarkFolderDatabaseViewDialog.EditBookmarkFolderDatabaseViewListener {
75 // Define the class constants.
76 private static final int ALL_FOLDERS_DATABASE_ID = -2;
77 public static final int HOME_FOLDER_DATABASE_ID = -1;
79 // Define the saved instance state constants.
80 private final String CURRENT_FOLDER_DATABASE_ID = "current_folder_database_id";
81 private final String CURRENT_FOLDER_NAME = "current_folder_name";
82 private final String SORT_BY_DISPLAY_ORDER = "sort_by_display_order";
84 // Define the class variables.
85 private int currentFolderDatabaseId;
86 private String currentFolderName;
87 private boolean sortByDisplayOrder;
88 private BookmarksDatabaseHelper bookmarksDatabaseHelper;
89 private Cursor bookmarksCursor;
90 private CursorAdapter bookmarksCursorAdapter;
91 private String oldFolderNameString;
92 private Snackbar bookmarksDeletedSnackbar;
93 private boolean closeActivityAfterDismissingSnackbar;
96 public void onCreate(Bundle savedInstanceState) {
97 // Get a handle for the shared preferences.
98 SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
100 // Get the screenshot preference.
101 boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
103 // Disable screenshots if not allowed.
104 if (!allowScreenshots) {
105 getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
108 // Set the activity theme.
109 setTheme(R.style.PrivacyBrowser);
111 // Run the default commands.
112 super.onCreate(savedInstanceState);
114 // Get the intent that launched the activity.
115 Intent launchingIntent = getIntent();
117 // Get the favorite icon byte array.
118 byte[] favoriteIconByteArray = launchingIntent.getByteArrayExtra("favorite_icon_byte_array");
120 // Remove the incorrect lint warning below that the favorite icon byte array might be null.
121 assert favoriteIconByteArray != null;
123 // Convert the favorite icon byte array to a bitmap and store it in a class variable.
124 Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
126 // Set the content view.
127 setContentView(R.layout.bookmarks_databaseview_coordinatorlayout);
129 // Get a handle for the toolbar.
130 Toolbar toolbar = findViewById(R.id.bookmarks_databaseview_toolbar);
132 // Set the support action bar.
133 setSupportActionBar(toolbar);
135 // Get a handle for the action bar.
136 ActionBar actionBar = getSupportActionBar();
138 // Remove the incorrect lint warning that the action bar might be null.
139 assert actionBar != null;
141 // Display the spinner and the back arrow in the action bar.
142 actionBar.setCustomView(R.layout.spinner);
143 actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_HOME_AS_UP);
145 // Initialize the database handler. The `0` is to specify a database version, but that is set instead using a constant in `BookmarksDatabaseHelper`.
146 bookmarksDatabaseHelper = new BookmarksDatabaseHelper(this, null, null, 0);
148 // Setup a matrix cursor for "All Folders" and "Home Folder".
149 String[] matrixCursorColumnNames = {BookmarksDatabaseHelper._ID, BookmarksDatabaseHelper.BOOKMARK_NAME};
150 MatrixCursor matrixCursor = new MatrixCursor(matrixCursorColumnNames);
151 matrixCursor.addRow(new Object[]{ALL_FOLDERS_DATABASE_ID, getString(R.string.all_folders)});
152 matrixCursor.addRow(new Object[]{HOME_FOLDER_DATABASE_ID, getString(R.string.home_folder)});
154 // Get a cursor with the list of all the folders.
155 Cursor foldersCursor = bookmarksDatabaseHelper.getAllFolders();
157 // Combine the matrix cursor and the folders cursor.
158 MergeCursor foldersMergeCursor = new MergeCursor(new Cursor[]{matrixCursor, foldersCursor});
161 // Get the default folder bitmap. `ContextCompat` must be used until the minimum API >= 21.
162 Drawable defaultFolderDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_blue_bitmap);
164 // Cast the default folder drawable to a bitmap drawable.
165 BitmapDrawable defaultFolderBitmapDrawable = (BitmapDrawable) defaultFolderDrawable;
167 // Remove the incorrect lint warning that `.getBitmap()` might be null.
168 assert defaultFolderBitmapDrawable != null;
170 // Convert the default folder bitmap drawable to a bitmap.
171 Bitmap defaultFolderBitmap = defaultFolderBitmapDrawable.getBitmap();
174 // Create a resource cursor adapter for the spinner.
175 ResourceCursorAdapter foldersCursorAdapter = new ResourceCursorAdapter(this, R.layout.appbar_spinner_item, foldersMergeCursor, 0) {
177 public void bindView(View view, Context context, Cursor cursor) {
178 // Get handles for the spinner views.
179 ImageView spinnerItemImageView = view.findViewById(R.id.spinner_item_imageview);
180 TextView spinnerItemTextView = view.findViewById(R.id.spinner_item_textview);
182 // Set the folder icon according to the type.
183 if (foldersMergeCursor.getPosition() > 1) { // Set a user folder icon.
184 // Initialize a default folder icon byte array output stream.
185 ByteArrayOutputStream defaultFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
187 // 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).
188 defaultFolderBitmap.compress(Bitmap.CompressFormat.PNG, 0, defaultFolderIconByteArrayOutputStream);
190 // Convert the default folder icon output stream to a byte array.
191 byte[] defaultFolderIconByteArray = defaultFolderIconByteArrayOutputStream.toByteArray();
194 // Get the folder icon byte array from the cursor.
195 byte[] folderIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
197 // Convert the byte array to a bitmap beginning at the first byte and ending at the last.
198 Bitmap folderIconBitmap = BitmapFactory.decodeByteArray(folderIconByteArray, 0, folderIconByteArray.length);
201 // Set the icon according to the type.
202 if (Arrays.equals(folderIconByteArray, defaultFolderIconByteArray)) { // The default folder icon is used.
203 // Set a smaller and darker folder icon, which works well with the spinner.
204 spinnerItemImageView.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.folder_dark_blue));
205 } else { // A custom folder icon is uses.
206 // Set the folder image stored in the cursor.
207 spinnerItemImageView.setImageBitmap(folderIconBitmap);
209 } else { // Set the `All Folders` or `Home Folder` icon.
210 // Set the gray folder image. `ContextCompat` must be used until the minimum API >= 21.
211 spinnerItemImageView.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.folder_gray));
214 // Set the text view to display the folder name.
215 spinnerItemTextView.setText(cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
219 // Set the resource cursor adapter drop drown view resource.
220 foldersCursorAdapter.setDropDownViewResource(R.layout.appbar_spinner_dropdown_item);
222 // Get a handle for the folder spinner and set the adapter.
223 Spinner folderSpinner = findViewById(R.id.spinner);
224 folderSpinner.setAdapter(foldersCursorAdapter);
226 // Wait to set the on item selected listener until the spinner has been inflated. Otherwise the activity will crash on restart.
227 folderSpinner.post(() -> {
228 // Handle taps on the spinner dropdown.
229 folderSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
231 public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
232 // Store the current folder database ID.
233 currentFolderDatabaseId = (int) id;
235 // Get a handle for the selected view.
236 TextView selectedFolderTextView = findViewById(R.id.spinner_item_textview);
238 // Store the current folder name.
239 currentFolderName = selectedFolderTextView.getText().toString();
241 // Update the list view.
242 updateBookmarksListView();
246 public void onNothingSelected(AdapterView<?> parent) {
253 // Get a handle for the bookmarks listview.
254 ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
256 // Check to see if the activity was restarted.
257 if (savedInstanceState == null) { // The activity was not restarted.
258 // Set the default current folder database ID.
259 currentFolderDatabaseId = ALL_FOLDERS_DATABASE_ID;
260 } else { // The activity was restarted.
261 // Restore the class variables from the saved instance state.
262 currentFolderDatabaseId = savedInstanceState.getInt(CURRENT_FOLDER_DATABASE_ID);
263 currentFolderName = savedInstanceState.getString(CURRENT_FOLDER_NAME);
264 sortByDisplayOrder = savedInstanceState.getBoolean(SORT_BY_DISPLAY_ORDER);
266 // Update the spinner if the home folder is selected. Android handles this by default for the main cursor but not the matrix cursor.
267 if (currentFolderDatabaseId == HOME_FOLDER_DATABASE_ID) {
268 folderSpinner.setSelection(1);
272 // Update the bookmarks listview.
273 updateBookmarksListView();
275 // Setup a `CursorAdapter` with `this` context. `false` disables autoRequery.
276 bookmarksCursorAdapter = new CursorAdapter(this, bookmarksCursor, false) {
278 public View newView(Context context, Cursor cursor, ViewGroup parent) {
279 // Inflate the individual item layout. `false` does not attach it to the root.
280 return getLayoutInflater().inflate(R.layout.bookmarks_databaseview_item_linearlayout, parent, false);
284 public void bindView(View view, Context context, Cursor cursor) {
285 boolean isFolder = (cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1);
287 // Get the database ID from the `Cursor` and display it in `bookmarkDatabaseIdTextView`.
288 int bookmarkDatabaseId = cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper._ID));
289 TextView bookmarkDatabaseIdTextView = view.findViewById(R.id.bookmarks_databaseview_database_id);
290 bookmarkDatabaseIdTextView.setText(String.valueOf(bookmarkDatabaseId));
292 // Get the favorite icon byte array from the `Cursor`.
293 byte[] favoriteIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
294 // Convert the byte array to a `Bitmap` beginning at the beginning at the first byte and ending at the last.
295 Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
296 // Display the bitmap in `bookmarkFavoriteIcon`.
297 ImageView bookmarkFavoriteIcon = view.findViewById(R.id.bookmarks_databaseview_favorite_icon);
298 bookmarkFavoriteIcon.setImageBitmap(favoriteIconBitmap);
300 // Get the bookmark name from the `Cursor` and display it in `bookmarkNameTextView`.
301 String bookmarkNameString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
302 TextView bookmarkNameTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_name);
303 bookmarkNameTextView.setText(bookmarkNameString);
305 // Make the font bold for folders.
307 // The first argument is `null` prevent changing of the font.
308 bookmarkNameTextView.setTypeface(null, Typeface.BOLD);
309 } else { // Reset the font to default.
310 bookmarkNameTextView.setTypeface(Typeface.DEFAULT);
313 // Get the bookmark URL form the `Cursor` and display it in `bookmarkUrlTextView`.
314 String bookmarkUrlString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL));
315 TextView bookmarkUrlTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_url);
316 bookmarkUrlTextView.setText(bookmarkUrlString);
318 // Hide the URL if the bookmark is a folder.
320 bookmarkUrlTextView.setVisibility(View.GONE);
322 bookmarkUrlTextView.setVisibility(View.VISIBLE);
325 // Get the display order from the `Cursor` and display it in `bookmarkDisplayOrderTextView`.
326 int bookmarkDisplayOrder = cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER));
327 TextView bookmarkDisplayOrderTextView = view.findViewById(R.id.bookmarks_databaseview_display_order);
328 bookmarkDisplayOrderTextView.setText(String.valueOf(bookmarkDisplayOrder));
330 // Get the parent folder from the `Cursor` and display it in `bookmarkParentFolder`.
331 String bookmarkParentFolder = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER));
332 ImageView parentFolderImageView = view.findViewById(R.id.bookmarks_databaseview_parent_folder_icon);
333 TextView bookmarkParentFolderTextView = view.findViewById(R.id.bookmarks_databaseview_parent_folder);
335 // Make the folder name gray if it is the home folder.
336 if (bookmarkParentFolder.isEmpty()) {
337 parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_gray));
338 bookmarkParentFolderTextView.setText(R.string.home_folder);
339 bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_500));
341 parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_dark_blue));
342 bookmarkParentFolderTextView.setText(bookmarkParentFolder);
344 // Get the current theme status.
345 int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
347 // Set the text color according to the theme.
348 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_YES) {
349 // This color is a little darker than the default night mode text. But the effect is rather nice.
350 bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_300));
352 bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.black));
358 // Update the ListView.
359 bookmarksListView.setAdapter(bookmarksCursorAdapter);
361 // Set a listener to edit a bookmark when it is tapped.
362 bookmarksListView.setOnItemClickListener((AdapterView<?> parent, View view, int position, long id) -> {
363 // Convert the database ID to an int.
364 int databaseId = (int) id;
366 // Show the edit bookmark or edit bookmark folder dialog.
367 if (bookmarksDatabaseHelper.isFolder(databaseId)) {
368 // Save the current folder name, which is used in `onSaveBookmarkFolder()`.
369 oldFolderNameString = bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
371 // Show the edit bookmark folder dialog.
372 DialogFragment editBookmarkFolderDatabaseViewDialog = EditBookmarkFolderDatabaseViewDialog.folderDatabaseId(databaseId, favoriteIconBitmap);
373 editBookmarkFolderDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_folder));
375 // Show the edit bookmark dialog.
376 DialogFragment editBookmarkDatabaseViewDialog = EditBookmarkDatabaseViewDialog.bookmarkDatabaseId(databaseId, favoriteIconBitmap);
377 editBookmarkDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_bookmark));
381 // Handle long presses on the list view.
382 bookmarksListView.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() {
383 // Instantiate the common variables.
384 MenuItem selectAllMenuItem;
385 MenuItem deleteMenuItem;
386 boolean deletingBookmarks;
389 public boolean onCreateActionMode(ActionMode mode, Menu menu) {
390 // Inflate the menu for the contextual app bar.
391 getMenuInflater().inflate(R.menu.bookmarks_databaseview_context_menu, menu);
394 mode.setTitle(R.string.bookmarks);
396 // Get handles for the menu items.
397 selectAllMenuItem = menu.findItem(R.id.select_all);
398 deleteMenuItem = menu.findItem(R.id.delete);
400 // Disable the delete menu item if a delete is pending.
401 deleteMenuItem.setEnabled(!deletingBookmarks);
403 // Get the number of currently selected bookmarks.
404 int numberOfSelectedBookmarks = bookmarksListView.getCheckedItemCount();
406 // 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.
407 mode.setSubtitle(getString(R.string.selected) + " " + numberOfSelectedBookmarks);
409 // Do not show the select all menu item if all the bookmarks are already checked.
410 if (bookmarksListView.getCheckedItemCount() == bookmarksListView.getCount()) {
411 selectAllMenuItem.setVisible(false);
419 public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
425 public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) {
426 // Calculate the number of selected bookmarks.
427 int numberOfSelectedBookmarks = bookmarksListView.getCheckedItemCount();
429 // Only run the commands if at least one bookmark is selected. Otherwise, a context menu with 0 selected bookmarks is briefly displayed.
430 if (numberOfSelectedBookmarks > 0) {
431 // Update the action mode subtitle according to the number of selected bookmarks.
432 mode.setSubtitle(getString(R.string.selected) + " " + numberOfSelectedBookmarks);
434 // Only show the select all menu item if all of the bookmarks are not already selected.
435 selectAllMenuItem.setVisible(bookmarksListView.getCheckedItemCount() != bookmarksListView.getCount());
437 // Convert the database ID to an int.
438 int databaseId = (int) id;
440 // If a folder was selected, also select all the contents.
441 if (checked && bookmarksDatabaseHelper.isFolder(databaseId)) {
442 selectAllBookmarksInFolder(databaseId);
445 // Do not allow a bookmark to be deselected if the folder is selected.
447 // Get the folder name.
448 String folderName = bookmarksDatabaseHelper.getParentFolderName((int) id);
450 // If the bookmark is not in the root folder, check to see if the folder is selected.
451 if (!folderName.isEmpty()) {
452 // Get the database ID of the folder.
453 int folderDatabaseId = bookmarksDatabaseHelper.getFolderDatabaseId(folderName);
455 // Move the bookmarks cursor to the first position.
456 bookmarksCursor.moveToFirst();
458 // Initialize the folder position variable.
459 int folderPosition = -1;
461 // Get the position of the folder in the bookmarks cursor.
462 while ((folderPosition < 0) && (bookmarksCursor.getPosition() < bookmarksCursor.getCount())) {
463 // Check if the folder database ID matches the bookmark database ID.
464 if (folderDatabaseId == bookmarksCursor.getInt((bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper._ID)))) {
465 // Get the folder position.
466 folderPosition = bookmarksCursor.getPosition();
468 // Check if the folder is selected.
469 if (bookmarksListView.isItemChecked(folderPosition)) {
470 // Reselect the bookmark.
471 bookmarksListView.setItemChecked(position, true);
473 // Display a snackbar explaining why the bookmark cannot be deselected.
474 Snackbar.make(bookmarksListView, R.string.cannot_deselect_bookmark, Snackbar.LENGTH_LONG).show();
478 // Increment the bookmarks cursor.
479 bookmarksCursor.moveToNext();
487 public boolean onActionItemClicked(ActionMode mode, MenuItem menuItem) {
488 // Get a the menu item ID.
489 int menuItemId = menuItem.getItemId();
491 // Run the command that corresponds to the selected menu item.
492 if (menuItemId == R.id.select_all) { // Select all the bookmarks.
493 // Get the total number of bookmarks.
494 int numberOfBookmarks = bookmarksListView.getCount();
497 for (int i = 0; i < numberOfBookmarks; i++) {
498 bookmarksListView.setItemChecked(i, true);
500 } else if (menuItemId == R.id.delete) { // Delete the selected bookmarks.
501 // Set the deleting bookmarks flag, which prevents the delete menu item from being enabled until the current process finishes.
502 deletingBookmarks = true;
504 // Get an array of the selected row IDs.
505 long[] selectedBookmarksIdsLongArray = bookmarksListView.getCheckedItemIds();
507 // 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.
508 SparseBooleanArray selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions().clone();
510 // Update the bookmarks cursor with the current contents of the bookmarks database except for the specified database IDs.
511 switch (currentFolderDatabaseId) {
512 // Get a cursor with all the folders.
513 case ALL_FOLDERS_DATABASE_ID:
514 if (sortByDisplayOrder) {
515 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray);
517 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksExcept(selectedBookmarksIdsLongArray);
521 // Get a cursor for the home folder.
522 case HOME_FOLDER_DATABASE_ID:
523 if (sortByDisplayOrder) {
524 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, "");
526 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksExcept(selectedBookmarksIdsLongArray, "");
530 // Display the selected folder.
532 // Get a cursor for the selected folder.
533 if (sortByDisplayOrder) {
534 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, currentFolderName);
536 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksExcept(selectedBookmarksIdsLongArray, currentFolderName);
540 // Update the list view.
541 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
543 // Create a Snackbar with the number of deleted bookmarks.
544 bookmarksDeletedSnackbar = Snackbar.make(findViewById(R.id.bookmarks_databaseview_coordinatorlayout),
545 getString(R.string.bookmarks_deleted) + " " + selectedBookmarksIdsLongArray.length, Snackbar.LENGTH_LONG)
546 .setAction(R.string.undo, view -> {
547 // Do nothing because everything will be handled by `onDismissed()` below.
549 .addCallback(new Snackbar.Callback() {
550 @SuppressLint("SwitchIntDef") // Ignore the lint warning about not handling the other possible events as they are covered by `default:`.
552 public void onDismissed(Snackbar snackbar, int event) {
553 if (event == Snackbar.Callback.DISMISS_EVENT_ACTION) { // The user pushed the undo button.
554 // Update the bookmarks list view with the current contents of the bookmarks database, including the "deleted bookmarks.
555 updateBookmarksListView();
557 // Re-select the previously selected bookmarks.
558 for (int i = 0; i < selectedBookmarksPositionsSparseBooleanArray.size(); i++) {
559 bookmarksListView.setItemChecked(selectedBookmarksPositionsSparseBooleanArray.keyAt(i), true);
561 } else { // The Snackbar was dismissed without the undo button being pushed.
562 // Delete each selected bookmark.
563 for (long databaseIdLong : selectedBookmarksIdsLongArray) {
564 // Convert `databaseIdLong` to an int.
565 int databaseIdInt = (int) databaseIdLong;
567 // Delete the selected bookmark.
568 bookmarksDatabaseHelper.deleteBookmark(databaseIdInt);
572 // Reset the deleting bookmarks flag.
573 deletingBookmarks = false;
575 // Enable the delete menu item.
576 deleteMenuItem.setEnabled(true);
578 // Close the activity if back has been pressed.
579 if (closeActivityAfterDismissingSnackbar) {
585 // Show the Snackbar.
586 bookmarksDeletedSnackbar.show();
589 // Consume the click.
594 public void onDestroyActionMode(ActionMode mode) {
601 public boolean onCreateOptionsMenu(Menu menu) {
603 getMenuInflater().inflate(R.menu.bookmarks_databaseview_options_menu, menu);
605 // Get the current theme status.
606 int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
608 // Get a handle for the sort menu item.
609 MenuItem sortMenuItem = menu.findItem(R.id.sort);
611 // Change the sort menu item icon if the listview is sorted by display order, which restores the state after a restart.
612 if (sortByDisplayOrder) {
613 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
614 sortMenuItem.setIcon(R.drawable.sort_selected_day);
616 sortMenuItem.setIcon(R.drawable.sort_selected_night);
625 public boolean onOptionsItemSelected(MenuItem menuItem) {
626 // Get the menu item ID.
627 int menuItemId = menuItem.getItemId();
629 // Run the command that corresponds to the selected menu item.
630 if (menuItemId == android.R.id.home) { // Go Home. The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
631 // Exit the activity.
633 } else if (menuItemId == R.id.sort) { // Toggle the sort mode.
634 // Update the sort by display order tracker.
635 sortByDisplayOrder = !sortByDisplayOrder;
637 // Get a handle for the bookmarks list view.
638 ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
640 // Get the current theme status.
641 int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
643 // Update the icon and display a snackbar.
644 if (sortByDisplayOrder) { // Sort by display order.
645 // Update the icon according to the theme.
646 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
647 menuItem.setIcon(R.drawable.sort_selected_day);
649 menuItem.setIcon(R.drawable.sort_selected_night);
652 // Display a Snackbar indicating the current sort type.
653 Snackbar.make(bookmarksListView, R.string.sorted_by_display_order, Snackbar.LENGTH_SHORT).show();
654 } else { // Sort by database id.
655 // Update the icon according to the theme.
656 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
657 menuItem.setIcon(R.drawable.sort_day);
659 menuItem.setIcon(R.drawable.sort_night);
662 // Display a Snackbar indicating the current sort type.
663 Snackbar.make(bookmarksListView, R.string.sorted_by_database_id, Snackbar.LENGTH_SHORT).show();
666 // Update the list view.
667 updateBookmarksListView();
670 // Consume the event.
675 public void onSaveInstanceState (@NonNull Bundle savedInstanceState) {
676 // Run the default commands.
677 super.onSaveInstanceState(savedInstanceState);
679 // Store the class variables in the bundle.
680 savedInstanceState.putInt(CURRENT_FOLDER_DATABASE_ID, currentFolderDatabaseId);
681 savedInstanceState.putString(CURRENT_FOLDER_NAME, currentFolderName);
682 savedInstanceState.putBoolean(SORT_BY_DISPLAY_ORDER, sortByDisplayOrder);
686 public void onBackPressed() {
687 // 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.
688 if ((bookmarksDeletedSnackbar != null) && bookmarksDeletedSnackbar.isShown()) { // Close the bookmarks deleted snackbar before going home.
689 // Set the close flag.
690 closeActivityAfterDismissingSnackbar = true;
692 // Dismiss the snackbar.
693 bookmarksDeletedSnackbar.dismiss();
694 } else { // Go home immediately.
695 // Update the current folder in the bookmarks activity.
696 if ((currentFolderDatabaseId == ALL_FOLDERS_DATABASE_ID) || (currentFolderDatabaseId == HOME_FOLDER_DATABASE_ID)) { // All folders or the the home folder are currently displayed.
697 // Load the home folder.
698 BookmarksActivity.currentFolder = "";
699 } else { // A subfolder is currently displayed.
700 // Load the current folder.
701 BookmarksActivity.currentFolder = currentFolderName;
704 // Reload the bookmarks list view when returning to the bookmarks activity.
705 BookmarksActivity.restartFromBookmarksDatabaseViewActivity = true;
707 // Exit the bookmarks database view activity.
708 super.onBackPressed();
712 private void updateBookmarksListView() {
713 // Populate the bookmarks list view based on the spinner selection.
714 switch (currentFolderDatabaseId) {
715 // Get a cursor with all the folders.
716 case ALL_FOLDERS_DATABASE_ID:
717 if (sortByDisplayOrder) {
718 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksByDisplayOrder();
720 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks();
724 // Get a cursor for the home folder.
725 case HOME_FOLDER_DATABASE_ID:
726 if (sortByDisplayOrder) {
727 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder("");
729 bookmarksCursor = bookmarksDatabaseHelper.getBookmarks("");
733 // Display the selected folder.
735 // Get a cursor for the selected folder.
736 if (sortByDisplayOrder) {
737 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolderName);
739 bookmarksCursor = bookmarksDatabaseHelper.getBookmarks(currentFolderName);
743 // Update the cursor adapter if it isn't null, which happens when the activity is restarted.
744 if (bookmarksCursorAdapter != null) {
745 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
749 private void selectAllBookmarksInFolder(int folderId) {
750 // Get a handle for the bookmarks list view.
751 ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
753 // Get the folder name.
754 String folderName = bookmarksDatabaseHelper.getFolderName(folderId);
756 // Get a cursor with the contents of the folder.
757 Cursor folderCursor = bookmarksDatabaseHelper.getBookmarks(folderName);
759 // Move to the beginning of the cursor.
760 folderCursor.moveToFirst();
762 while (folderCursor.getPosition() < folderCursor.getCount()) {
763 // Get the bookmark database ID.
764 int bookmarkId = folderCursor.getInt(folderCursor.getColumnIndex(BookmarksDatabaseHelper._ID));
766 // Move the bookmarks cursor to the first position.
767 bookmarksCursor.moveToFirst();
769 // Initialize the bookmark position variable.
770 int bookmarkPosition = -1;
772 // Get the position of this bookmark in the bookmarks cursor.
773 while ((bookmarkPosition < 0) && (bookmarksCursor.getPosition() < bookmarksCursor.getCount())) {
774 // Check if the bookmark IDs match.
775 if (bookmarkId == bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper._ID))) {
776 // Get the bookmark position.
777 bookmarkPosition = bookmarksCursor.getPosition();
779 // If this bookmark is a folder, select all the bookmarks inside it.
780 if (bookmarksDatabaseHelper.isFolder(bookmarkId)) {
781 selectAllBookmarksInFolder(bookmarkId);
784 // Select the bookmark.
785 bookmarksListView.setItemChecked(bookmarkPosition, true);
788 // Increment the bookmarks cursor position.
789 bookmarksCursor.moveToNext();
792 // Move to the next position.
793 folderCursor.moveToNext();
798 public void onSaveBookmark(DialogFragment dialogFragment, int selectedBookmarkDatabaseId, @NonNull Bitmap favoriteIconBitmap) {
799 // Get the dialog from the dialog fragment.
800 Dialog dialog = dialogFragment.getDialog();
802 // Remove the incorrect lint warning below that the dialog might be null.
803 assert dialog != null;
805 // Get handles for the views from dialog fragment.
806 RadioButton currentIconRadioButton = dialog.findViewById(R.id.current_icon_radiobutton);
807 EditText bookmarkNameEditText = dialog.findViewById(R.id.bookmark_name_edittext);
808 EditText bookmarkUrlEditText = dialog.findViewById(R.id.bookmark_url_edittext);
809 Spinner folderSpinner = dialog.findViewById(R.id.bookmark_folder_spinner);
810 EditText displayOrderEditText = dialog.findViewById(R.id.bookmark_display_order_edittext);
812 // Extract the bookmark information.
813 String bookmarkNameString = bookmarkNameEditText.getText().toString();
814 String bookmarkUrlString = bookmarkUrlEditText.getText().toString();
815 int folderDatabaseId = (int) folderSpinner.getSelectedItemId();
816 int displayOrderInt = Integer.parseInt(displayOrderEditText.getText().toString());
818 // Instantiate the parent folder name `String`.
819 String parentFolderNameString;
821 // Set the parent folder name.
822 if (folderDatabaseId == HOME_FOLDER_DATABASE_ID) { // The home folder is selected. Use `""`.
823 parentFolderNameString = "";
824 } else { // Get the parent folder name from the database.
825 parentFolderNameString = bookmarksDatabaseHelper.getFolderName(folderDatabaseId);
828 // Update the bookmark.
829 if (currentIconRadioButton.isChecked()) { // Update the bookmark without changing the favorite icon.
830 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt);
831 } else { // Update the bookmark using the `WebView` favorite icon.
832 // Create a favorite icon byte array output stream.
833 ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
835 // Convert the favorite icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
836 favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
838 // Convert the favorite icon byte array stream to a byte array.
839 byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
841 // Update the bookmark and the favorite icon.
842 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt, newFavoriteIconByteArray);
845 // Update the list view.
846 updateBookmarksListView();
850 public void onSaveBookmarkFolder(DialogFragment dialogFragment, int selectedBookmarkDatabaseId, @NonNull Bitmap favoriteIconBitmap) {
851 // Get the dialog from the dialog fragment.
852 Dialog dialog = dialogFragment.getDialog();
854 // Remove the incorrect lint warning below that the dialog might be null.
855 assert dialog != null;
857 // Get handles for the views from dialog fragment.
858 RadioButton currentIconRadioButton = dialog.findViewById(R.id.current_icon_radiobutton);
859 RadioButton defaultIconRadioButton = dialog.findViewById(R.id.default_icon_radiobutton);
860 ImageView defaultIconImageView = dialog.findViewById(R.id.default_icon_imageview);
861 EditText folderNameEditText = dialog.findViewById(R.id.folder_name_edittext);
862 Spinner parentFolderSpinner = dialog.findViewById(R.id.parent_folder_spinner);
863 EditText displayOrderEditText = dialog.findViewById(R.id.display_order_edittext);
865 // Extract the folder information.
866 String newFolderNameString = folderNameEditText.getText().toString();
867 int parentFolderDatabaseId = (int) parentFolderSpinner.getSelectedItemId();
868 int displayOrderInt = Integer.parseInt(displayOrderEditText.getText().toString());
870 // Instantiate the parent folder name `String`.
871 String parentFolderNameString;
873 // Set the parent folder name.
874 if (parentFolderDatabaseId == HOME_FOLDER_DATABASE_ID) { // The home folder is selected. Use `""`.
875 parentFolderNameString = "";
876 } else { // Get the parent folder name from the database.
877 parentFolderNameString = bookmarksDatabaseHelper.getFolderName(parentFolderDatabaseId);
880 // Update the folder.
881 if (currentIconRadioButton.isChecked()) { // Update the folder without changing the favorite icon.
882 bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt);
883 } else { // Update the folder and the icon.
884 // Create the new folder icon Bitmap.
885 Bitmap folderIconBitmap;
887 // Populate the new folder icon bitmap.
888 if (defaultIconRadioButton.isChecked()) {
889 // Get the default folder icon drawable.
890 Drawable folderIconDrawable = defaultIconImageView.getDrawable();
892 // Convert the folder icon drawable to a bitmap drawable.
893 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
895 // Convert the folder icon bitmap drawable to a bitmap.
896 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
897 } else { // Use the `WebView` favorite icon.
898 // Get a copy of the favorite icon bitmap.
899 folderIconBitmap = favoriteIconBitmap;
902 // Create a folder icon byte array output stream.
903 ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
905 // Convert the folder icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
906 folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
908 // Convert the folder icon byte array stream to a byte array.
909 byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
911 // Update the folder and the icon.
912 bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt, newFolderIconByteArray);
915 // Update the list view.
916 updateBookmarksListView();
920 public void onDestroy() {
921 // Close the bookmarks cursor and database.
922 bookmarksCursor.close();
923 bookmarksDatabaseHelper.close();
925 // Run the default commands.