2 * Copyright © 2016-2020 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 // Update the action mode subtitle according to the number of selected bookmarks.
430 mode.setSubtitle(getString(R.string.selected) + " " + numberOfSelectedBookmarks);
432 // Update the visibility of the the select all menu.
433 if (bookmarksListView.getCheckedItemCount() == bookmarksListView.getCount()) { // All of the bookmarks are checked.
434 // Hide the select all menu item.
435 selectAllMenuItem.setVisible(false);
436 } else { // Not all of the bookmarks are checked.
437 // Show the select all menu item.
438 selectAllMenuItem.setVisible(true);
441 // Convert the database ID to an int.
442 int databaseId = (int) id;
444 // If a folder was selected, also select all the contents.
445 if (checked && bookmarksDatabaseHelper.isFolder(databaseId)) {
446 selectAllBookmarksInFolder(databaseId);
449 // Do not allow a bookmark to be deselected if the folder is selected.
451 // Get the folder name.
452 String folderName = bookmarksDatabaseHelper.getParentFolderName((int) id);
454 // If the bookmark is not in the root folder, check to see if the folder is selected.
455 if (!folderName.isEmpty()) {
456 // Get the database ID of the folder.
457 int folderDatabaseId = bookmarksDatabaseHelper.getFolderDatabaseId(folderName);
459 // Move the bookmarks cursor to the first position.
460 bookmarksCursor.moveToFirst();
462 // Initialize the folder position variable.
463 int folderPosition = -1;
465 // Get the position of the folder in the bookmarks cursor.
466 while ((folderPosition < 0) && (bookmarksCursor.getPosition() < bookmarksCursor.getCount())) {
467 // Check if the folder database ID matches the bookmark database ID.
468 if (folderDatabaseId == bookmarksCursor.getInt((bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper._ID)))) {
469 // Get the folder position.
470 folderPosition = bookmarksCursor.getPosition();
472 // Check if the folder is selected.
473 if (bookmarksListView.isItemChecked(folderPosition)) {
474 // Reselect the bookmark.
475 bookmarksListView.setItemChecked(position, true);
477 // Display a snackbar explaining why the bookmark cannot be deselected.
478 Snackbar.make(bookmarksListView, R.string.cannot_deselect_bookmark, Snackbar.LENGTH_LONG).show();
482 // Increment the bookmarks cursor.
483 bookmarksCursor.moveToNext();
490 public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
491 switch (item.getItemId()) {
492 case R.id.select_all:
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);
503 // Set the deleting bookmarks flag, which prevents the delete menu item from being enabled until the current process finishes.
504 deletingBookmarks = true;
506 // Get an array of the selected row IDs.
507 long[] selectedBookmarksIdsLongArray = bookmarksListView.getCheckedItemIds();
509 // 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.
510 SparseBooleanArray selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions().clone();
512 // Update the bookmarks cursor with the current contents of the bookmarks database except for the specified database IDs.
513 switch (currentFolderDatabaseId) {
514 // Get a cursor with all the folders.
515 case ALL_FOLDERS_DATABASE_ID:
516 if (sortByDisplayOrder) {
517 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray);
519 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksExcept(selectedBookmarksIdsLongArray);
523 // Get a cursor for the home folder.
524 case HOME_FOLDER_DATABASE_ID:
525 if (sortByDisplayOrder) {
526 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, "");
528 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksExcept(selectedBookmarksIdsLongArray, "");
532 // Display the selected folder.
534 // Get a cursor for the selected folder.
535 if (sortByDisplayOrder) {
536 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, currentFolderName);
538 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksExcept(selectedBookmarksIdsLongArray, currentFolderName);
542 // Update the list view.
543 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
545 // Create a Snackbar with the number of deleted bookmarks.
546 bookmarksDeletedSnackbar = Snackbar.make(findViewById(R.id.bookmarks_databaseview_coordinatorlayout),
547 getString(R.string.bookmarks_deleted) + " " + selectedBookmarksIdsLongArray.length, Snackbar.LENGTH_LONG)
548 .setAction(R.string.undo, view -> {
549 // Do nothing because everything will be handled by `onDismissed()` below.
551 .addCallback(new Snackbar.Callback() {
552 @SuppressLint("SwitchIntDef") // Ignore the lint warning about not handling the other possible events as they are covered by `default:`.
554 public void onDismissed(Snackbar snackbar, int event) {
555 if (event == Snackbar.Callback.DISMISS_EVENT_ACTION) { // The user pushed the undo button.
556 // Update the bookmarks list view with the current contents of the bookmarks database, including the "deleted bookmarks.
557 updateBookmarksListView();
559 // Re-select the previously selected bookmarks.
560 for (int i = 0; i < selectedBookmarksPositionsSparseBooleanArray.size(); i++) {
561 bookmarksListView.setItemChecked(selectedBookmarksPositionsSparseBooleanArray.keyAt(i), true);
563 } else { // The Snackbar was dismissed without the undo button being pushed.
564 // Delete each selected bookmark.
565 for (long databaseIdLong : selectedBookmarksIdsLongArray) {
566 // Convert `databaseIdLong` to an int.
567 int databaseIdInt = (int) databaseIdLong;
569 // Delete the selected bookmark.
570 bookmarksDatabaseHelper.deleteBookmark(databaseIdInt);
574 // Reset the deleting bookmarks flag.
575 deletingBookmarks = false;
577 // Enable the delete menu item.
578 deleteMenuItem.setEnabled(true);
580 // Close the activity if back has been pressed.
581 if (closeActivityAfterDismissingSnackbar) {
587 // Show the Snackbar.
588 bookmarksDeletedSnackbar.show();
592 // Consume the click.
597 public void onDestroyActionMode(ActionMode mode) {
604 public boolean onCreateOptionsMenu(Menu menu) {
606 getMenuInflater().inflate(R.menu.bookmarks_databaseview_options_menu, menu);
608 // Get the current theme status.
609 int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
611 // Get a handle for the sort menu item.
612 MenuItem sortMenuItem = menu.findItem(R.id.sort);
614 // Change the sort menu item icon if the listview is sorted by display order, which restores the state after a restart.
615 if (sortByDisplayOrder) {
616 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
617 sortMenuItem.setIcon(R.drawable.sort_selected_day);
619 sortMenuItem.setIcon(R.drawable.sort_selected_night);
628 public boolean onOptionsItemSelected(MenuItem menuItem) {
629 // Get the ID of the menu item that was selected.
630 int menuItemId = menuItem.getItemId();
632 // Run the command that corresponds to the selected menu item.
633 switch (menuItemId) {
634 case android.R.id.home: // The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
635 // Exit the activity.
640 // Update the sort by display order tracker.
641 sortByDisplayOrder = !sortByDisplayOrder;
643 // Get a handle for the bookmarks list view.
644 ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
646 // Get the current theme status.
647 int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
649 // Update the icon and display a snackbar.
650 if (sortByDisplayOrder) { // Sort by display order.
651 // Update the icon according to the theme.
652 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
653 menuItem.setIcon(R.drawable.sort_selected_day);
655 menuItem.setIcon(R.drawable.sort_selected_night);
658 // Display a Snackbar indicating the current sort type.
659 Snackbar.make(bookmarksListView, R.string.sorted_by_display_order, Snackbar.LENGTH_SHORT).show();
660 } else { // Sort by database id.
661 // Update the icon according to the theme.
662 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
663 menuItem.setIcon(R.drawable.sort_day);
665 menuItem.setIcon(R.drawable.sort_night);
668 // Display a Snackbar indicating the current sort type.
669 Snackbar.make(bookmarksListView, R.string.sorted_by_database_id, Snackbar.LENGTH_SHORT).show();
672 // Update the list view.
673 updateBookmarksListView();
680 public void onSaveInstanceState (@NonNull Bundle savedInstanceState) {
681 // Run the default commands.
682 super.onSaveInstanceState(savedInstanceState);
684 // Store the class variables in the bundle.
685 savedInstanceState.putInt(CURRENT_FOLDER_DATABASE_ID, currentFolderDatabaseId);
686 savedInstanceState.putString(CURRENT_FOLDER_NAME, currentFolderName);
687 savedInstanceState.putBoolean(SORT_BY_DISPLAY_ORDER, sortByDisplayOrder);
691 public void onBackPressed() {
692 // 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.
693 if ((bookmarksDeletedSnackbar != null) && bookmarksDeletedSnackbar.isShown()) { // Close the bookmarks deleted snackbar before going home.
694 // Set the close flag.
695 closeActivityAfterDismissingSnackbar = true;
697 // Dismiss the snackbar.
698 bookmarksDeletedSnackbar.dismiss();
699 } else { // Go home immediately.
700 // Update the current folder in the bookmarks activity.
701 if ((currentFolderDatabaseId == ALL_FOLDERS_DATABASE_ID) || (currentFolderDatabaseId == HOME_FOLDER_DATABASE_ID)) { // All folders or the the home folder are currently displayed.
702 // Load the home folder.
703 BookmarksActivity.currentFolder = "";
704 } else { // A subfolder is currently displayed.
705 // Load the current folder.
706 BookmarksActivity.currentFolder = currentFolderName;
709 // Reload the bookmarks list view when returning to the bookmarks activity.
710 BookmarksActivity.restartFromBookmarksDatabaseViewActivity = true;
712 // Exit the bookmarks database view activity.
713 super.onBackPressed();
717 private void updateBookmarksListView() {
718 // Populate the bookmarks list view based on the spinner selection.
719 switch (currentFolderDatabaseId) {
720 // Get a cursor with all the folders.
721 case ALL_FOLDERS_DATABASE_ID:
722 if (sortByDisplayOrder) {
723 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksByDisplayOrder();
725 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks();
729 // Get a cursor for the home folder.
730 case HOME_FOLDER_DATABASE_ID:
731 if (sortByDisplayOrder) {
732 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder("");
734 bookmarksCursor = bookmarksDatabaseHelper.getBookmarks("");
738 // Display the selected folder.
740 // Get a cursor for the selected folder.
741 if (sortByDisplayOrder) {
742 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolderName);
744 bookmarksCursor = bookmarksDatabaseHelper.getBookmarks(currentFolderName);
748 // Update the cursor adapter if it isn't null, which happens when the activity is restarted.
749 if (bookmarksCursorAdapter != null) {
750 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
754 private void selectAllBookmarksInFolder(int folderId) {
755 // Get a handle for the bookmarks list view.
756 ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
758 // Get the folder name.
759 String folderName = bookmarksDatabaseHelper.getFolderName(folderId);
761 // Get a cursor with the contents of the folder.
762 Cursor folderCursor = bookmarksDatabaseHelper.getBookmarks(folderName);
764 // Move to the beginning of the cursor.
765 folderCursor.moveToFirst();
767 while (folderCursor.getPosition() < folderCursor.getCount()) {
768 // Get the bookmark database ID.
769 int bookmarkId = folderCursor.getInt(folderCursor.getColumnIndex(BookmarksDatabaseHelper._ID));
771 // Move the bookmarks cursor to the first position.
772 bookmarksCursor.moveToFirst();
774 // Initialize the bookmark position variable.
775 int bookmarkPosition = -1;
777 // Get the position of this bookmark in the bookmarks cursor.
778 while ((bookmarkPosition < 0) && (bookmarksCursor.getPosition() < bookmarksCursor.getCount())) {
779 // Check if the bookmark IDs match.
780 if (bookmarkId == bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper._ID))) {
781 // Get the bookmark position.
782 bookmarkPosition = bookmarksCursor.getPosition();
784 // If this bookmark is a folder, select all the bookmarks inside it.
785 if (bookmarksDatabaseHelper.isFolder(bookmarkId)) {
786 selectAllBookmarksInFolder(bookmarkId);
789 // Select the bookmark.
790 bookmarksListView.setItemChecked(bookmarkPosition, true);
793 // Increment the bookmarks cursor position.
794 bookmarksCursor.moveToNext();
797 // Move to the next position.
798 folderCursor.moveToNext();
803 public void onSaveBookmark(DialogFragment dialogFragment, int selectedBookmarkDatabaseId, @NonNull Bitmap favoriteIconBitmap) {
804 // Get the dialog from the dialog fragment.
805 Dialog dialog = dialogFragment.getDialog();
807 // Remove the incorrect lint warning below that the dialog might be null.
808 assert dialog != null;
810 // Get handles for the views from dialog fragment.
811 RadioButton currentBookmarkIconRadioButton = dialog.findViewById(R.id.edit_bookmark_current_icon_radiobutton);
812 EditText editBookmarkNameEditText = dialog.findViewById(R.id.edit_bookmark_name_edittext);
813 EditText editBookmarkUrlEditText = dialog.findViewById(R.id.edit_bookmark_url_edittext);
814 Spinner folderSpinner = dialog.findViewById(R.id.edit_bookmark_folder_spinner);
815 EditText displayOrderEditText = dialog.findViewById(R.id.edit_bookmark_display_order_edittext);
817 // Extract the bookmark information.
818 String bookmarkNameString = editBookmarkNameEditText.getText().toString();
819 String bookmarkUrlString = editBookmarkUrlEditText.getText().toString();
820 int folderDatabaseId = (int) folderSpinner.getSelectedItemId();
821 int displayOrderInt = Integer.parseInt(displayOrderEditText.getText().toString());
823 // Instantiate the parent folder name `String`.
824 String parentFolderNameString;
826 // Set the parent folder name.
827 if (folderDatabaseId == HOME_FOLDER_DATABASE_ID) { // The home folder is selected. Use `""`.
828 parentFolderNameString = "";
829 } else { // Get the parent folder name from the database.
830 parentFolderNameString = bookmarksDatabaseHelper.getFolderName(folderDatabaseId);
833 // Update the bookmark.
834 if (currentBookmarkIconRadioButton.isChecked()) { // Update the bookmark without changing the favorite icon.
835 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt);
836 } else { // Update the bookmark using the `WebView` favorite icon.
837 // Create a favorite icon byte array output stream.
838 ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
840 // Convert the favorite icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
841 favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
843 // Convert the favorite icon byte array stream to a byte array.
844 byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
846 // Update the bookmark and the favorite icon.
847 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt, newFavoriteIconByteArray);
850 // Update the list view.
851 updateBookmarksListView();
855 public void onSaveBookmarkFolder(DialogFragment dialogFragment, int selectedBookmarkDatabaseId, Bitmap favoriteIconBitmap) {
856 // Get the dialog from the dialog fragment.
857 Dialog dialog = dialogFragment.getDialog();
859 // Remove the incorrect lint warning below that the dialog might be null.
860 assert dialog != null;
862 // Get handles for the views from dialog fragment.
863 RadioButton currentBookmarkIconRadioButton = dialog.findViewById(R.id.edit_folder_current_icon_radiobutton);
864 RadioButton defaultFolderIconRadioButton = dialog.findViewById(R.id.edit_folder_default_icon_radiobutton);
865 ImageView defaultFolderIconImageView = dialog.findViewById(R.id.edit_folder_default_icon_imageview);
866 EditText editBookmarkNameEditText = dialog.findViewById(R.id.edit_folder_name_edittext);
867 Spinner parentFolderSpinner = dialog.findViewById(R.id.edit_folder_parent_folder_spinner);
868 EditText displayOrderEditText = dialog.findViewById(R.id.edit_folder_display_order_edittext);
870 // Extract the folder information.
871 String newFolderNameString = editBookmarkNameEditText.getText().toString();
872 int parentFolderDatabaseId = (int) parentFolderSpinner.getSelectedItemId();
873 int displayOrderInt = Integer.parseInt(displayOrderEditText.getText().toString());
875 // Instantiate the parent folder name `String`.
876 String parentFolderNameString;
878 // Set the parent folder name.
879 if (parentFolderDatabaseId == HOME_FOLDER_DATABASE_ID) { // The home folder is selected. Use `""`.
880 parentFolderNameString = "";
881 } else { // Get the parent folder name from the database.
882 parentFolderNameString = bookmarksDatabaseHelper.getFolderName(parentFolderDatabaseId);
885 // Update the folder.
886 if (currentBookmarkIconRadioButton.isChecked()) { // Update the folder without changing the favorite icon.
887 bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt);
888 } else { // Update the folder and the icon.
889 // Create the new folder icon Bitmap.
890 Bitmap folderIconBitmap;
892 // Populate the new folder icon bitmap.
893 if (defaultFolderIconRadioButton.isChecked()) {
894 // Get the default folder icon drawable.
895 Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
897 // Convert the folder icon drawable to a bitmap drawable.
898 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
900 // Convert the folder icon bitmap drawable to a bitmap.
901 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
902 } else { // Use the `WebView` favorite icon.
903 // Get a copy of the favorite icon bitmap.
904 folderIconBitmap = favoriteIconBitmap;
907 // Create a folder icon byte array output stream.
908 ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
910 // Convert the folder icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
911 folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
913 // Convert the folder icon byte array stream to a byte array.
914 byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
916 // Update the folder and the icon.
917 bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt, newFolderIconByteArray);
920 // Update the list view.
921 updateBookmarksListView();
925 public void onDestroy() {
926 // Close the bookmarks cursor and database.
927 bookmarksCursor.close();
928 bookmarksDatabaseHelper.close();
930 // Run the default commands.