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 // Instantiate the constants.
76 private static final int ALL_FOLDERS_DATABASE_ID = -2;
77 public static final int HOME_FOLDER_DATABASE_ID = -1;
79 // `bookmarksDatabaseHelper` is used in `onCreate()`, `updateBookmarksListView()`, `selectAllBookmarksInFolder()`, and `onDestroy()`.
80 private BookmarksDatabaseHelper bookmarksDatabaseHelper;
82 // `bookmarksCursor` is used in `onCreate()`, `updateBookmarksListView()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, and `onDestroy()`.
83 private Cursor bookmarksCursor;
85 // `bookmarksCursorAdapter` is used in `onCreate()`, `selectAllBookmarksInFolder()`, and `updateBookmarksListView()`.
86 private CursorAdapter bookmarksCursorAdapter;
88 // `oldFolderNameString` is used in `onCreate()` and `onSaveBookmarkFolder()`.
89 private String oldFolderNameString;
91 // `currentFolderDatabaseId` is used in `onCreate()`, `updateBookmarksListView()`, `onSaveBookmark()`, and `onSaveBookmarkFolder()`.
92 private int currentFolderDatabaseId;
94 // `currentFolder` is used in `onCreate()`, `onSaveBookmark()`, and `onSaveBookmarkFolder()`.
95 private String currentFolderName;
97 // `sortByDisplayOrder` is used in `onCreate()`, `onOptionsItemSelected()`, and `updateBookmarksListView()`.
98 private boolean sortByDisplayOrder;
100 // `bookmarksDeletedSnackbar` is used in `onCreate()`, `onOptionsItemSelected()`, and `onBackPressed()`.
101 private Snackbar bookmarksDeletedSnackbar;
103 // `closeActivityAfterDismissingSnackbar` is used in `onCreate()`, `onOptionsItemSelected()`, and `onBackPressed()`.
104 private boolean closeActivityAfterDismissingSnackbar;
107 public void onCreate(Bundle savedInstanceState) {
108 // Get a handle for the shared preferences.
109 SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
111 // Get the screenshot preference.
112 boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
114 // Disable screenshots if not allowed.
115 if (!allowScreenshots) {
116 getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
119 // Set the activity theme.
120 setTheme(R.style.PrivacyBrowser);
122 // Run the default commands.
123 super.onCreate(savedInstanceState);
125 // Get the intent that launched the activity.
126 Intent launchingIntent = getIntent();
128 // Get the favorite icon byte array.
129 byte[] favoriteIconByteArray = launchingIntent.getByteArrayExtra("favorite_icon_byte_array");
131 // Remove the incorrect lint warning below that the favorite icon byte array might be null.
132 assert favoriteIconByteArray != null;
134 // Convert the favorite icon byte array to a bitmap and store it in a class variable.
135 Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
137 // Set the content view.
138 setContentView(R.layout.bookmarks_databaseview_coordinatorlayout);
140 // The AndroidX toolbar must be used until the minimum API is >= 21.
141 Toolbar toolbar = findViewById(R.id.bookmarks_databaseview_toolbar);
142 setSupportActionBar(toolbar);
144 // Get a handle for the action bar.
145 ActionBar actionBar = getSupportActionBar();
147 // Remove the incorrect lint warning that the action bar might be null.
148 assert actionBar != null;
150 // Display the spinner and the back arrow in the action bar.
151 actionBar.setCustomView(R.layout.spinner);
152 actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_HOME_AS_UP);
154 // Initialize the database handler. The `0` is to specify a database version, but that is set instead using a constant in `BookmarksDatabaseHelper`.
155 bookmarksDatabaseHelper = new BookmarksDatabaseHelper(this, null, null, 0);
157 // Setup a matrix cursor for "All Folders" and "Home Folder".
158 String[] matrixCursorColumnNames = {BookmarksDatabaseHelper._ID, BookmarksDatabaseHelper.BOOKMARK_NAME};
159 MatrixCursor matrixCursor = new MatrixCursor(matrixCursorColumnNames);
160 matrixCursor.addRow(new Object[]{ALL_FOLDERS_DATABASE_ID, getString(R.string.all_folders)});
161 matrixCursor.addRow(new Object[]{HOME_FOLDER_DATABASE_ID, getString(R.string.home_folder)});
163 // Get a cursor with the list of all the folders.
164 Cursor foldersCursor = bookmarksDatabaseHelper.getAllFolders();
166 // Combine `matrixCursor` and `foldersCursor`.
167 MergeCursor foldersMergeCursor = new MergeCursor(new Cursor[]{matrixCursor, foldersCursor});
170 // Get the default folder bitmap. `ContextCompat` must be used until the minimum API >= 21.
171 Drawable defaultFolderDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_blue_bitmap);
173 // Cast the default folder drawable to a `BitmapDrawable`.
174 BitmapDrawable defaultFolderBitmapDrawable = (BitmapDrawable) defaultFolderDrawable;
176 // Remove the incorrect lint warning that `.getBitmap()` might be null.
177 assert defaultFolderBitmapDrawable != null;
179 // Convert the default folder `BitmapDrawable` to a bitmap.
180 Bitmap defaultFolderBitmap = defaultFolderBitmapDrawable.getBitmap();
183 // Create a resource cursor adapter for the spinner.
184 ResourceCursorAdapter foldersCursorAdapter = new ResourceCursorAdapter(this, R.layout.appbar_spinner_item, foldersMergeCursor, 0) {
186 public void bindView(View view, Context context, Cursor cursor) {
187 // Get handles for the spinner views.
188 ImageView spinnerItemImageView = view.findViewById(R.id.spinner_item_imageview);
189 TextView spinnerItemTextView = view.findViewById(R.id.spinner_item_textview);
191 // Set the folder icon according to the type.
192 if (foldersMergeCursor.getPosition() > 1) { // Set a user folder icon.
193 // Initialize a default folder icon byte array output stream.
194 ByteArrayOutputStream defaultFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
196 // 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).
197 defaultFolderBitmap.compress(Bitmap.CompressFormat.PNG, 0, defaultFolderIconByteArrayOutputStream);
199 // Convert the default folder icon output stream to a byte array.
200 byte[] defaultFolderIconByteArray = defaultFolderIconByteArrayOutputStream.toByteArray();
203 // Get the folder icon byte array from the cursor.
204 byte[] folderIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
206 // Convert the byte array to a bitmap beginning at the first byte and ending at the last.
207 Bitmap folderIconBitmap = BitmapFactory.decodeByteArray(folderIconByteArray, 0, folderIconByteArray.length);
210 // Set the icon according to the type.
211 if (Arrays.equals(folderIconByteArray, defaultFolderIconByteArray)) { // The default folder icon is used.
212 // Set a smaller and darker folder icon, which works well with the spinner.
213 spinnerItemImageView.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.folder_dark_blue));
214 } else { // A custom folder icon is uses.
215 // Set the folder image stored in the cursor.
216 spinnerItemImageView.setImageBitmap(folderIconBitmap);
218 } else { // Set the `All Folders` or `Home Folder` icon.
219 // Set the gray folder image. `ContextCompat` must be used until the minimum API >= 21.
220 spinnerItemImageView.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.folder_gray));
223 // Set the text view to display the folder name.
224 spinnerItemTextView.setText(cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
228 // Set the resource cursor adapter drop drown view resource.
229 foldersCursorAdapter.setDropDownViewResource(R.layout.appbar_spinner_dropdown_item);
231 // Get a handle for the folder spinner and set the adapter.
232 Spinner folderSpinner = findViewById(R.id.spinner);
233 folderSpinner.setAdapter(foldersCursorAdapter);
235 // Handle taps on the spinner dropdown.
236 folderSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
238 public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
239 // Store the current folder database ID.
240 currentFolderDatabaseId = (int) id;
242 // Get a handle for the selected view.
243 TextView selectedFolderTextView = findViewById(R.id.spinner_item_textview);
245 // Store the current folder name.
246 currentFolderName = selectedFolderTextView.getText().toString();
248 // Update the list view.
249 updateBookmarksListView();
253 public void onNothingSelected(AdapterView<?> parent) {
258 // Get a handle for the bookmarks `ListView`.
259 ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
261 // Get a `Cursor` with the current contents of the bookmarks database.
262 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks();
264 // Setup a `CursorAdapter` with `this` context. `false` disables autoRequery.
265 bookmarksCursorAdapter = new CursorAdapter(this, bookmarksCursor, false) {
267 public View newView(Context context, Cursor cursor, ViewGroup parent) {
268 // Inflate the individual item layout. `false` does not attach it to the root.
269 return getLayoutInflater().inflate(R.layout.bookmarks_databaseview_item_linearlayout, parent, false);
273 public void bindView(View view, Context context, Cursor cursor) {
274 boolean isFolder = (cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1);
276 // Get the database ID from the `Cursor` and display it in `bookmarkDatabaseIdTextView`.
277 int bookmarkDatabaseId = cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper._ID));
278 TextView bookmarkDatabaseIdTextView = view.findViewById(R.id.bookmarks_databaseview_database_id);
279 bookmarkDatabaseIdTextView.setText(String.valueOf(bookmarkDatabaseId));
281 // Get the favorite icon byte array from the `Cursor`.
282 byte[] favoriteIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
283 // Convert the byte array to a `Bitmap` beginning at the beginning at the first byte and ending at the last.
284 Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
285 // Display the bitmap in `bookmarkFavoriteIcon`.
286 ImageView bookmarkFavoriteIcon = view.findViewById(R.id.bookmarks_databaseview_favorite_icon);
287 bookmarkFavoriteIcon.setImageBitmap(favoriteIconBitmap);
289 // Get the bookmark name from the `Cursor` and display it in `bookmarkNameTextView`.
290 String bookmarkNameString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
291 TextView bookmarkNameTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_name);
292 bookmarkNameTextView.setText(bookmarkNameString);
294 // Make the font bold for folders.
296 // The first argument is `null` prevent changing of the font.
297 bookmarkNameTextView.setTypeface(null, Typeface.BOLD);
298 } else { // Reset the font to default.
299 bookmarkNameTextView.setTypeface(Typeface.DEFAULT);
302 // Get the bookmark URL form the `Cursor` and display it in `bookmarkUrlTextView`.
303 String bookmarkUrlString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL));
304 TextView bookmarkUrlTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_url);
305 bookmarkUrlTextView.setText(bookmarkUrlString);
307 // Hide the URL if the bookmark is a folder.
309 bookmarkUrlTextView.setVisibility(View.GONE);
311 bookmarkUrlTextView.setVisibility(View.VISIBLE);
314 // Get the display order from the `Cursor` and display it in `bookmarkDisplayOrderTextView`.
315 int bookmarkDisplayOrder = cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER));
316 TextView bookmarkDisplayOrderTextView = view.findViewById(R.id.bookmarks_databaseview_display_order);
317 bookmarkDisplayOrderTextView.setText(String.valueOf(bookmarkDisplayOrder));
319 // Get the parent folder from the `Cursor` and display it in `bookmarkParentFolder`.
320 String bookmarkParentFolder = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER));
321 ImageView parentFolderImageView = view.findViewById(R.id.bookmarks_databaseview_parent_folder_icon);
322 TextView bookmarkParentFolderTextView = view.findViewById(R.id.bookmarks_databaseview_parent_folder);
324 // Make the folder name gray if it is the home folder.
325 if (bookmarkParentFolder.isEmpty()) {
326 parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_gray));
327 bookmarkParentFolderTextView.setText(R.string.home_folder);
328 bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_500));
330 parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_dark_blue));
331 bookmarkParentFolderTextView.setText(bookmarkParentFolder);
333 // Get the current theme status.
334 int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
336 // Set the text color according to the theme.
337 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_YES) {
338 // This color is a little darker than the default night mode text. But the effect is rather nice.
339 bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_300));
341 bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.black));
347 // Update the ListView.
348 bookmarksListView.setAdapter(bookmarksCursorAdapter);
350 // Set the current folder database ID.
351 currentFolderDatabaseId = ALL_FOLDERS_DATABASE_ID;
353 // Set a listener to edit a bookmark when it is tapped.
354 bookmarksListView.setOnItemClickListener((AdapterView<?> parent, View view, int position, long id) -> {
355 // Convert the database ID to an int.
356 int databaseId = (int) id;
358 // Show the edit bookmark or edit bookmark folder dialog.
359 if (bookmarksDatabaseHelper.isFolder(databaseId)) {
360 // Save the current folder name, which is used in `onSaveBookmarkFolder()`.
361 oldFolderNameString = bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
363 // Show the edit bookmark folder dialog.
364 DialogFragment editBookmarkFolderDatabaseViewDialog = EditBookmarkFolderDatabaseViewDialog.folderDatabaseId(databaseId, favoriteIconBitmap);
365 editBookmarkFolderDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_folder));
367 // Show the edit bookmark dialog.
368 DialogFragment editBookmarkDatabaseViewDialog = EditBookmarkDatabaseViewDialog.bookmarkDatabaseId(databaseId, favoriteIconBitmap);
369 editBookmarkDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_bookmark));
373 // Handle long presses on the list view.
374 bookmarksListView.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() {
375 // Instantiate the common variables.
376 MenuItem selectAllMenuItem;
377 MenuItem deleteMenuItem;
378 boolean deletingBookmarks;
381 public boolean onCreateActionMode(ActionMode mode, Menu menu) {
382 // Inflate the menu for the contextual app bar.
383 getMenuInflater().inflate(R.menu.bookmarks_databaseview_context_menu, menu);
386 mode.setTitle(R.string.bookmarks);
388 // Get handles for the menu items.
389 selectAllMenuItem = menu.findItem(R.id.select_all);
390 deleteMenuItem = menu.findItem(R.id.delete);
392 // Disable the delete menu item if a delete is pending.
393 deleteMenuItem.setEnabled(!deletingBookmarks);
400 public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
406 public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) {
407 // Calculate the number of selected bookmarks.
408 int numberOfSelectedBookmarks = bookmarksListView.getCheckedItemCount();
410 // Adjust the ActionMode according to the number of selected bookmarks.
411 mode.setSubtitle(getString(R.string.selected) + " " + numberOfSelectedBookmarks);
413 // Do not show the select all menu item if all the bookmarks are already checked.
414 if (bookmarksListView.getCheckedItemCount() == bookmarksListView.getCount()) {
415 selectAllMenuItem.setVisible(false);
417 selectAllMenuItem.setVisible(true);
420 // Convert the database ID to an int.
421 int databaseId = (int) id;
423 // If a folder was selected, also select all the contents.
424 if (checked && bookmarksDatabaseHelper.isFolder(databaseId)) {
425 selectAllBookmarksInFolder(databaseId);
428 // Do not allow a bookmark to be deselected if the folder is selected.
430 // Get the folder name.
431 String folderName = bookmarksDatabaseHelper.getParentFolderName((int) id);
433 // If the bookmark is not in the root folder, check to see if the folder is selected.
434 if (!folderName.isEmpty()) {
435 // Get the database ID of the folder.
436 int folderDatabaseId = bookmarksDatabaseHelper.getFolderDatabaseId(folderName);
438 // Move the bookmarks cursor to the first position.
439 bookmarksCursor.moveToFirst();
441 // Initialize the folder position variable.
442 int folderPosition = -1;
444 // Get the position of the folder in the bookmarks cursor.
445 while ((folderPosition < 0) && (bookmarksCursor.getPosition() < bookmarksCursor.getCount())) {
446 // Check if the folder database ID matches the bookmark database ID.
447 if (folderDatabaseId == bookmarksCursor.getInt((bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper._ID)))) {
448 // Get the folder position.
449 folderPosition = bookmarksCursor.getPosition();
451 // Check if the folder is selected.
452 if (bookmarksListView.isItemChecked(folderPosition)) {
453 // Reselect the bookmark.
454 bookmarksListView.setItemChecked(position, true);
456 // Display a snackbar explaining why the bookmark cannot be deselected.
457 Snackbar.make(bookmarksListView, R.string.cannot_deselect_bookmark, Snackbar.LENGTH_LONG).show();
461 // Increment the bookmarks cursor.
462 bookmarksCursor.moveToNext();
469 public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
470 switch (item.getItemId()) {
471 case R.id.select_all:
472 // Get the total number of bookmarks.
473 int numberOfBookmarks = bookmarksListView.getCount();
476 for (int i = 0; i < numberOfBookmarks; i++) {
477 bookmarksListView.setItemChecked(i, true);
482 // Set the deleting bookmarks flag, which prevents the delete menu item from being enabled until the current process finishes.
483 deletingBookmarks = true;
485 // Get an array of the selected row IDs.
486 long[] selectedBookmarksIdsLongArray = bookmarksListView.getCheckedItemIds();
488 // 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.
489 SparseBooleanArray selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions().clone();
491 // Update the bookmarks cursor with the current contents of the bookmarks database except for the specified database IDs.
492 switch (currentFolderDatabaseId) {
493 // Get a cursor with all the folders.
494 case ALL_FOLDERS_DATABASE_ID:
495 if (sortByDisplayOrder) {
496 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray);
498 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksExcept(selectedBookmarksIdsLongArray);
502 // Get a cursor for the home folder.
503 case HOME_FOLDER_DATABASE_ID:
504 if (sortByDisplayOrder) {
505 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, "");
507 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksExcept(selectedBookmarksIdsLongArray, "");
511 // Display the selected folder.
513 // Get a cursor for the selected folder.
514 if (sortByDisplayOrder) {
515 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, currentFolderName);
517 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksExcept(selectedBookmarksIdsLongArray, currentFolderName);
521 // Update the list view.
522 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
524 // Create a Snackbar with the number of deleted bookmarks.
525 bookmarksDeletedSnackbar = Snackbar.make(findViewById(R.id.bookmarks_databaseview_coordinatorlayout),
526 getString(R.string.bookmarks_deleted) + " " + selectedBookmarksIdsLongArray.length, Snackbar.LENGTH_LONG)
527 .setAction(R.string.undo, view -> {
528 // Do nothing because everything will be handled by `onDismissed()` below.
530 .addCallback(new Snackbar.Callback() {
531 @SuppressLint("SwitchIntDef") // Ignore the lint warning about not handling the other possible events as they are covered by `default:`.
533 public void onDismissed(Snackbar snackbar, int event) {
534 if (event == Snackbar.Callback.DISMISS_EVENT_ACTION) { // The user pushed the undo button.
535 // Update the bookmarks list view with the current contents of the bookmarks database, including the "deleted bookmarks.
536 updateBookmarksListView();
538 // Re-select the previously selected bookmarks.
539 for (int i = 0; i < selectedBookmarksPositionsSparseBooleanArray.size(); i++) {
540 bookmarksListView.setItemChecked(selectedBookmarksPositionsSparseBooleanArray.keyAt(i), true);
542 } else { // The Snackbar was dismissed without the undo button being pushed.
543 // Delete each selected bookmark.
544 for (long databaseIdLong : selectedBookmarksIdsLongArray) {
545 // Convert `databaseIdLong` to an int.
546 int databaseIdInt = (int) databaseIdLong;
548 // Delete the selected bookmark.
549 bookmarksDatabaseHelper.deleteBookmark(databaseIdInt);
553 // Reset the deleting bookmarks flag.
554 deletingBookmarks = false;
556 // Enable the delete menu item.
557 deleteMenuItem.setEnabled(true);
559 // Close the activity if back has been pressed.
560 if (closeActivityAfterDismissingSnackbar) {
566 // Show the Snackbar.
567 bookmarksDeletedSnackbar.show();
571 // Consume the click.
576 public void onDestroyActionMode(ActionMode mode) {
583 public boolean onCreateOptionsMenu(Menu menu) {
585 getMenuInflater().inflate(R.menu.bookmarks_databaseview_options_menu, menu);
592 public boolean onOptionsItemSelected(MenuItem menuItem) {
593 // Get the ID of the menu item that was selected.
594 int menuItemId = menuItem.getItemId();
596 // Run the command that corresponds to the selected menu item.
597 switch (menuItemId) {
598 case android.R.id.home: // The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
599 // Exit the activity.
603 case R.id.options_menu_sort:
604 // Update the sort by display order tracker.
605 sortByDisplayOrder = !sortByDisplayOrder;
607 // Get a handle for the bookmarks list view.
608 ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
610 // Get the current theme status.
611 int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
613 // Update the icon and display a snackbar.
614 if (sortByDisplayOrder) { // Sort by display order.
615 // Update the icon according to the theme.
616 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_YES) {
617 menuItem.setIcon(R.drawable.sort_selected_night);
619 menuItem.setIcon(R.drawable.sort_selected_day);
622 // Display a Snackbar indicating the current sort type.
623 Snackbar.make(bookmarksListView, R.string.sorted_by_display_order, Snackbar.LENGTH_SHORT).show();
624 } else { // Sort by database id.
625 // Update the icon according to the theme.
626 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_YES) {
627 menuItem.setIcon(R.drawable.sort_night);
629 menuItem.setIcon(R.drawable.sort_day);
632 // Display a Snackbar indicating the current sort type.
633 Snackbar.make(bookmarksListView, R.string.sorted_by_database_id, Snackbar.LENGTH_SHORT).show();
636 // Update the list view.
637 updateBookmarksListView();
644 public void onBackPressed() {
645 // 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.
646 if ((bookmarksDeletedSnackbar != null) && bookmarksDeletedSnackbar.isShown()) { // Close the bookmarks deleted snackbar before going home.
647 // Set the close flag.
648 closeActivityAfterDismissingSnackbar = true;
650 // Dismiss the snackbar.
651 bookmarksDeletedSnackbar.dismiss();
652 } else { // Go home immediately.
653 // Update the current folder in the bookmarks activity.
654 if ((currentFolderDatabaseId == ALL_FOLDERS_DATABASE_ID) || (currentFolderDatabaseId == HOME_FOLDER_DATABASE_ID)) { // All folders or the the home folder are currently displayed.
655 // Load the home folder.
656 BookmarksActivity.currentFolder = "";
657 } else { // A subfolder is currently displayed.
658 // Load the current folder.
659 BookmarksActivity.currentFolder = currentFolderName;
662 // Reload the bookmarks list view when returning to the bookmarks activity.
663 BookmarksActivity.restartFromBookmarksDatabaseViewActivity = true;
665 // Exit the bookmarks database view activity.
666 super.onBackPressed();
670 private void updateBookmarksListView() {
671 // Populate the bookmarks list view based on the spinner selection.
672 switch (currentFolderDatabaseId) {
673 // Get a cursor with all the folders.
674 case ALL_FOLDERS_DATABASE_ID:
675 if (sortByDisplayOrder) {
676 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksByDisplayOrder();
678 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks();
682 // Get a cursor for the home folder.
683 case HOME_FOLDER_DATABASE_ID:
684 if (sortByDisplayOrder) {
685 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder("");
687 bookmarksCursor = bookmarksDatabaseHelper.getBookmarks("");
691 // Display the selected folder.
693 // Get a cursor for the selected folder.
694 if (sortByDisplayOrder) {
695 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolderName);
697 bookmarksCursor = bookmarksDatabaseHelper.getBookmarks(currentFolderName);
701 // Update the list view.
702 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
705 private void selectAllBookmarksInFolder(int folderId) {
706 // Get a handle for the bookmarks list view.
707 ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
709 // Get the folder name.
710 String folderName = bookmarksDatabaseHelper.getFolderName(folderId);
712 // Get a cursor with the contents of the folder.
713 Cursor folderCursor = bookmarksDatabaseHelper.getBookmarks(folderName);
715 // Move to the beginning of the cursor.
716 folderCursor.moveToFirst();
718 while (folderCursor.getPosition() < folderCursor.getCount()) {
719 // Get the bookmark database ID.
720 int bookmarkId = folderCursor.getInt(folderCursor.getColumnIndex(BookmarksDatabaseHelper._ID));
722 // Move the bookmarks cursor to the first position.
723 bookmarksCursor.moveToFirst();
725 // Initialize the bookmark position variable.
726 int bookmarkPosition = -1;
728 // Get the position of this bookmark in the bookmarks cursor.
729 while ((bookmarkPosition < 0) && (bookmarksCursor.getPosition() < bookmarksCursor.getCount())) {
730 // Check if the bookmark IDs match.
731 if (bookmarkId == bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper._ID))) {
732 // Get the bookmark position.
733 bookmarkPosition = bookmarksCursor.getPosition();
735 // If this bookmark is a folder, select all the bookmarks inside it.
736 if (bookmarksDatabaseHelper.isFolder(bookmarkId)) {
737 selectAllBookmarksInFolder(bookmarkId);
740 // Select the bookmark.
741 bookmarksListView.setItemChecked(bookmarkPosition, true);
744 // Increment the bookmarks cursor position.
745 bookmarksCursor.moveToNext();
748 // Move to the next position.
749 folderCursor.moveToNext();
754 public void onSaveBookmark(DialogFragment dialogFragment, int selectedBookmarkDatabaseId, @NonNull Bitmap favoriteIconBitmap) {
755 // Get the dialog from the dialog fragment.
756 Dialog dialog = dialogFragment.getDialog();
758 // Remove the incorrect lint warning below that the dialog might be null.
759 assert dialog != null;
761 // Get handles for the views from dialog fragment.
762 RadioButton currentBookmarkIconRadioButton = dialog.findViewById(R.id.edit_bookmark_current_icon_radiobutton);
763 EditText editBookmarkNameEditText = dialog.findViewById(R.id.edit_bookmark_name_edittext);
764 EditText editBookmarkUrlEditText = dialog.findViewById(R.id.edit_bookmark_url_edittext);
765 Spinner folderSpinner = dialog.findViewById(R.id.edit_bookmark_folder_spinner);
766 EditText displayOrderEditText = dialog.findViewById(R.id.edit_bookmark_display_order_edittext);
768 // Extract the bookmark information.
769 String bookmarkNameString = editBookmarkNameEditText.getText().toString();
770 String bookmarkUrlString = editBookmarkUrlEditText.getText().toString();
771 int folderDatabaseId = (int) folderSpinner.getSelectedItemId();
772 int displayOrderInt = Integer.parseInt(displayOrderEditText.getText().toString());
774 // Instantiate the parent folder name `String`.
775 String parentFolderNameString;
777 // Set the parent folder name.
778 if (folderDatabaseId == HOME_FOLDER_DATABASE_ID) { // The home folder is selected. Use `""`.
779 parentFolderNameString = "";
780 } else { // Get the parent folder name from the database.
781 parentFolderNameString = bookmarksDatabaseHelper.getFolderName(folderDatabaseId);
784 // Update the bookmark.
785 if (currentBookmarkIconRadioButton.isChecked()) { // Update the bookmark without changing the favorite icon.
786 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt);
787 } else { // Update the bookmark using the `WebView` favorite icon.
788 // Create a favorite icon byte array output stream.
789 ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
791 // Convert the favorite icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
792 favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
794 // Convert the favorite icon byte array stream to a byte array.
795 byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
797 // Update the bookmark and the favorite icon.
798 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt, newFavoriteIconByteArray);
801 // Update the list view.
802 updateBookmarksListView();
806 public void onSaveBookmarkFolder(DialogFragment dialogFragment, int selectedBookmarkDatabaseId, Bitmap favoriteIconBitmap) {
807 // Get the dialog from the dialog fragment.
808 Dialog dialog = dialogFragment.getDialog();
810 // Remove the incorrect lint warning below that the dialog might be null.
811 assert dialog != null;
813 // Get handles for the views from dialog fragment.
814 RadioButton currentBookmarkIconRadioButton = dialog.findViewById(R.id.edit_folder_current_icon_radiobutton);
815 RadioButton defaultFolderIconRadioButton = dialog.findViewById(R.id.edit_folder_default_icon_radiobutton);
816 ImageView defaultFolderIconImageView = dialog.findViewById(R.id.edit_folder_default_icon_imageview);
817 EditText editBookmarkNameEditText = dialog.findViewById(R.id.edit_folder_name_edittext);
818 Spinner parentFolderSpinner = dialog.findViewById(R.id.edit_folder_parent_folder_spinner);
819 EditText displayOrderEditText = dialog.findViewById(R.id.edit_folder_display_order_edittext);
821 // Extract the folder information.
822 String newFolderNameString = editBookmarkNameEditText.getText().toString();
823 int parentFolderDatabaseId = (int) parentFolderSpinner.getSelectedItemId();
824 int displayOrderInt = Integer.parseInt(displayOrderEditText.getText().toString());
826 // Instantiate the parent folder name `String`.
827 String parentFolderNameString;
829 // Set the parent folder name.
830 if (parentFolderDatabaseId == HOME_FOLDER_DATABASE_ID) { // The home folder is selected. Use `""`.
831 parentFolderNameString = "";
832 } else { // Get the parent folder name from the database.
833 parentFolderNameString = bookmarksDatabaseHelper.getFolderName(parentFolderDatabaseId);
836 // Update the folder.
837 if (currentBookmarkIconRadioButton.isChecked()) { // Update the folder without changing the favorite icon.
838 bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt);
839 } else { // Update the folder and the icon.
840 // Create the new folder icon Bitmap.
841 Bitmap folderIconBitmap;
843 // Populate the new folder icon bitmap.
844 if (defaultFolderIconRadioButton.isChecked()) {
845 // Get the default folder icon drawable.
846 Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
848 // Convert the folder icon drawable to a bitmap drawable.
849 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
851 // Convert the folder icon bitmap drawable to a bitmap.
852 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
853 } else { // Use the `WebView` favorite icon.
854 // Get a copy of the favorite icon bitmap.
855 folderIconBitmap = favoriteIconBitmap;
858 // Create a folder icon byte array output stream.
859 ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
861 // Convert the folder icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
862 folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
864 // Convert the folder icon byte array stream to a byte array.
865 byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
867 // Update the folder and the icon.
868 bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt, newFolderIconByteArray);
871 // Update the list view.
872 updateBookmarksListView();
876 public void onDestroy() {
877 // Close the bookmarks cursor and database.
878 bookmarksCursor.close();
879 bookmarksDatabaseHelper.close();
881 // Run the default commands.