2 * Copyright © 2016-2022 Soren Stoutner <soren@stoutner.com>.
4 * This file is part of Privacy Browser Android <https://www.stoutner.com/privacy-browser-android>.
6 * Privacy Browser Android 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 Android 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 Android. 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.Window;
45 import android.view.WindowManager;
46 import android.widget.AbsListView;
47 import android.widget.AdapterView;
48 import android.widget.EditText;
49 import android.widget.ImageView;
50 import android.widget.ListView;
51 import android.widget.RadioButton;
52 import android.widget.ResourceCursorAdapter;
53 import android.widget.Spinner;
54 import android.widget.TextView;
56 import androidx.annotation.NonNull;
57 import androidx.appcompat.app.ActionBar;
58 import androidx.appcompat.app.AppCompatActivity;
59 import androidx.appcompat.widget.Toolbar; // The AndroidX toolbar must be used until the minimum API is >= 21.
60 import androidx.core.content.ContextCompat;
61 import androidx.cursoradapter.widget.CursorAdapter;
62 import androidx.fragment.app.DialogFragment; // The AndroidX dialog fragment must be used or an error is produced on API <=22.
64 import com.google.android.material.snackbar.Snackbar;
66 import com.stoutner.privacybrowser.R;
67 import com.stoutner.privacybrowser.dialogs.EditBookmarkDatabaseViewDialog;
68 import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDatabaseViewDialog;
69 import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
71 import java.io.ByteArrayOutputStream;
72 import java.util.Arrays;
74 public class BookmarksDatabaseViewActivity extends AppCompatActivity implements EditBookmarkDatabaseViewDialog.EditBookmarkDatabaseViewListener,
75 EditBookmarkFolderDatabaseViewDialog.EditBookmarkFolderDatabaseViewListener {
76 // Define the class constants.
77 private static final int ALL_FOLDERS_DATABASE_ID = -2;
78 public static final int HOME_FOLDER_DATABASE_ID = -1;
80 // Define the saved instance state constants.
81 private final String CURRENT_FOLDER_DATABASE_ID = "current_folder_database_id";
82 private final String CURRENT_FOLDER_NAME = "current_folder_name";
83 private final String SORT_BY_DISPLAY_ORDER = "sort_by_display_order";
85 // Define the class variables.
86 private int currentFolderDatabaseId;
87 private String currentFolderName;
88 private boolean sortByDisplayOrder;
89 private BookmarksDatabaseHelper bookmarksDatabaseHelper;
90 private Cursor bookmarksCursor;
91 private CursorAdapter bookmarksCursorAdapter;
92 private String oldFolderNameString;
93 private Snackbar bookmarksDeletedSnackbar;
94 private boolean closeActivityAfterDismissingSnackbar;
97 public void onCreate(Bundle savedInstanceState) {
98 // Get a handle for the shared preferences.
99 SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
101 // Get the preferences.
102 boolean allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false);
103 boolean bottomAppBar = sharedPreferences.getBoolean(getString(R.string.bottom_app_bar_key), false);
105 // Disable screenshots if not allowed.
106 if (!allowScreenshots) {
107 getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
110 // Run the default commands.
111 super.onCreate(savedInstanceState);
113 // Get the intent that launched the activity.
114 Intent launchingIntent = getIntent();
116 // Get the favorite icon byte array.
117 byte[] favoriteIconByteArray = launchingIntent.getByteArrayExtra("favorite_icon_byte_array");
119 // Remove the incorrect lint warning below that the favorite icon byte array might be null.
120 assert favoriteIconByteArray != null;
122 // Convert the favorite icon byte array to a bitmap and store it in a class variable.
123 Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
125 // Set the view according to the theme.
127 // Set the content view.
128 setContentView(R.layout.bookmarks_databaseview_bottom_appbar);
130 // `Window.FEATURE_ACTION_MODE_OVERLAY` makes the contextual action mode cover the support action bar. It must be requested before the content is set.
131 supportRequestWindowFeature(Window.FEATURE_ACTION_MODE_OVERLAY);
133 // Set the content view.
134 setContentView(R.layout.bookmarks_databaseview_top_appbar);
137 // Get a handle for the toolbar.
138 Toolbar toolbar = findViewById(R.id.bookmarks_databaseview_toolbar);
140 // Set the support action bar.
141 setSupportActionBar(toolbar);
143 // Get a handle for the action bar.
144 ActionBar actionBar = getSupportActionBar();
146 // Remove the incorrect lint warning that the action bar might be null.
147 assert actionBar != null;
149 // Display the spinner and the back arrow in the action bar.
150 actionBar.setCustomView(R.layout.spinner);
151 actionBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_HOME_AS_UP);
153 // Initialize the database handler.
154 bookmarksDatabaseHelper = new BookmarksDatabaseHelper(this);
156 // Setup a matrix cursor for "All Folders" and "Home Folder".
157 String[] matrixCursorColumnNames = {BookmarksDatabaseHelper.ID, BookmarksDatabaseHelper.BOOKMARK_NAME};
158 MatrixCursor matrixCursor = new MatrixCursor(matrixCursorColumnNames);
159 matrixCursor.addRow(new Object[]{ALL_FOLDERS_DATABASE_ID, getString(R.string.all_folders)});
160 matrixCursor.addRow(new Object[]{HOME_FOLDER_DATABASE_ID, getString(R.string.home_folder)});
162 // Get a cursor with the list of all the folders.
163 Cursor foldersCursor = bookmarksDatabaseHelper.getAllFolders();
165 // Combine the matrix cursor and the folders cursor.
166 MergeCursor foldersMergeCursor = new MergeCursor(new Cursor[]{matrixCursor, foldersCursor});
169 // Get the default folder bitmap. `ContextCompat` must be used until the minimum API >= 21.
170 Drawable defaultFolderDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_blue_bitmap);
172 // Cast the default folder drawable to a bitmap drawable.
173 BitmapDrawable defaultFolderBitmapDrawable = (BitmapDrawable) defaultFolderDrawable;
175 // Remove the incorrect lint warning that `.getBitmap()` might be null.
176 assert defaultFolderBitmapDrawable != null;
178 // Convert the default folder bitmap drawable to a bitmap.
179 Bitmap defaultFolderBitmap = defaultFolderBitmapDrawable.getBitmap();
182 // Create a resource cursor adapter for the spinner.
183 ResourceCursorAdapter foldersCursorAdapter = new ResourceCursorAdapter(this, R.layout.appbar_spinner_item, foldersMergeCursor, 0) {
185 public void bindView(View view, Context context, Cursor cursor) {
186 // Get handles for the spinner views.
187 ImageView spinnerItemImageView = view.findViewById(R.id.spinner_item_imageview);
188 TextView spinnerItemTextView = view.findViewById(R.id.spinner_item_textview);
190 // Set the folder icon according to the type.
191 if (foldersMergeCursor.getPosition() > 1) { // Set a user folder icon.
192 // Initialize a default folder icon byte array output stream.
193 ByteArrayOutputStream defaultFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
195 // 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).
196 defaultFolderBitmap.compress(Bitmap.CompressFormat.PNG, 0, defaultFolderIconByteArrayOutputStream);
198 // Convert the default folder icon output stream to a byte array.
199 byte[] defaultFolderIconByteArray = defaultFolderIconByteArrayOutputStream.toByteArray();
202 // Get the folder icon byte array from the cursor.
203 byte[] folderIconByteArray = cursor.getBlob(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.FAVORITE_ICON));
205 // Convert the byte array to a bitmap beginning at the first byte and ending at the last.
206 Bitmap folderIconBitmap = BitmapFactory.decodeByteArray(folderIconByteArray, 0, folderIconByteArray.length);
209 // Set the icon according to the type.
210 if (Arrays.equals(folderIconByteArray, defaultFolderIconByteArray)) { // The default folder icon is used.
211 // Set a smaller and darker folder icon, which works well with the spinner.
212 spinnerItemImageView.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.folder_dark_blue));
213 } else { // A custom folder icon is uses.
214 // Set the folder image stored in the cursor.
215 spinnerItemImageView.setImageBitmap(folderIconBitmap);
217 } else { // Set the `All Folders` or `Home Folder` icon.
218 // Set the gray folder image. `ContextCompat` must be used until the minimum API >= 21.
219 spinnerItemImageView.setImageDrawable(ContextCompat.getDrawable(context, R.drawable.folder_gray));
222 // Set the text view to display the folder name.
223 spinnerItemTextView.setText(cursor.getString(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_NAME)));
227 // Set the resource cursor adapter drop drown view resource.
228 foldersCursorAdapter.setDropDownViewResource(R.layout.appbar_spinner_dropdown_item);
230 // Get a handle for the folder spinner and set the adapter.
231 Spinner folderSpinner = findViewById(R.id.spinner);
232 folderSpinner.setAdapter(foldersCursorAdapter);
234 // Wait to set the on item selected listener until the spinner has been inflated. Otherwise the activity will crash on restart.
235 folderSpinner.post(() -> {
236 // Handle taps on the spinner dropdown.
237 folderSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
239 public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
240 // Store the current folder database ID.
241 currentFolderDatabaseId = (int) id;
243 // Get a handle for the selected view.
244 TextView selectedFolderTextView = findViewById(R.id.spinner_item_textview);
246 // Store the current folder name.
247 currentFolderName = selectedFolderTextView.getText().toString();
249 // Update the list view.
250 updateBookmarksListView();
254 public void onNothingSelected(AdapterView<?> parent) {
261 // Get a handle for the bookmarks listview.
262 ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
264 // Check to see if the activity was restarted.
265 if (savedInstanceState == null) { // The activity was not restarted.
266 // Set the default current folder database ID.
267 currentFolderDatabaseId = ALL_FOLDERS_DATABASE_ID;
268 } else { // The activity was restarted.
269 // Restore the class variables from the saved instance state.
270 currentFolderDatabaseId = savedInstanceState.getInt(CURRENT_FOLDER_DATABASE_ID);
271 currentFolderName = savedInstanceState.getString(CURRENT_FOLDER_NAME);
272 sortByDisplayOrder = savedInstanceState.getBoolean(SORT_BY_DISPLAY_ORDER);
274 // Update the spinner if the home folder is selected. Android handles this by default for the main cursor but not the matrix cursor.
275 if (currentFolderDatabaseId == HOME_FOLDER_DATABASE_ID) {
276 folderSpinner.setSelection(1);
280 // Update the bookmarks listview.
281 updateBookmarksListView();
283 // Setup a `CursorAdapter` with `this` context. `false` disables autoRequery.
284 bookmarksCursorAdapter = new CursorAdapter(this, bookmarksCursor, false) {
286 public View newView(Context context, Cursor cursor, ViewGroup parent) {
287 // Inflate the individual item layout. `false` does not attach it to the root.
288 return getLayoutInflater().inflate(R.layout.bookmarks_databaseview_item_linearlayout, parent, false);
292 public void bindView(View view, Context context, Cursor cursor) {
293 boolean isFolder = (cursor.getInt(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.IS_FOLDER)) == 1);
295 // Get the database ID from the `Cursor` and display it in `bookmarkDatabaseIdTextView`.
296 int bookmarkDatabaseId = cursor.getInt(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID));
297 TextView bookmarkDatabaseIdTextView = view.findViewById(R.id.bookmarks_databaseview_database_id);
298 bookmarkDatabaseIdTextView.setText(String.valueOf(bookmarkDatabaseId));
300 // Get the favorite icon byte array from the `Cursor`.
301 byte[] favoriteIconByteArray = cursor.getBlob(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.FAVORITE_ICON));
302 // Convert the byte array to a `Bitmap` beginning at the beginning at the first byte and ending at the last.
303 Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
304 // Display the bitmap in `bookmarkFavoriteIcon`.
305 ImageView bookmarkFavoriteIcon = view.findViewById(R.id.bookmarks_databaseview_favorite_icon);
306 bookmarkFavoriteIcon.setImageBitmap(favoriteIconBitmap);
308 // Get the bookmark name from the `Cursor` and display it in `bookmarkNameTextView`.
309 String bookmarkNameString = cursor.getString(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_NAME));
310 TextView bookmarkNameTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_name);
311 bookmarkNameTextView.setText(bookmarkNameString);
313 // Make the font bold for folders.
315 // The first argument is `null` prevent changing of the font.
316 bookmarkNameTextView.setTypeface(null, Typeface.BOLD);
317 } else { // Reset the font to default.
318 bookmarkNameTextView.setTypeface(Typeface.DEFAULT);
321 // Get the bookmark URL form the `Cursor` and display it in `bookmarkUrlTextView`.
322 String bookmarkUrlString = cursor.getString(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_URL));
323 TextView bookmarkUrlTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_url);
324 bookmarkUrlTextView.setText(bookmarkUrlString);
326 // Hide the URL if the bookmark is a folder.
328 bookmarkUrlTextView.setVisibility(View.GONE);
330 bookmarkUrlTextView.setVisibility(View.VISIBLE);
333 // Get the display order from the `Cursor` and display it in `bookmarkDisplayOrderTextView`.
334 int bookmarkDisplayOrder = cursor.getInt(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.DISPLAY_ORDER));
335 TextView bookmarkDisplayOrderTextView = view.findViewById(R.id.bookmarks_databaseview_display_order);
336 bookmarkDisplayOrderTextView.setText(String.valueOf(bookmarkDisplayOrder));
338 // Get the parent folder from the `Cursor` and display it in `bookmarkParentFolder`.
339 String bookmarkParentFolder = cursor.getString(cursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.PARENT_FOLDER));
340 ImageView parentFolderImageView = view.findViewById(R.id.bookmarks_databaseview_parent_folder_icon);
341 TextView bookmarkParentFolderTextView = view.findViewById(R.id.bookmarks_databaseview_parent_folder);
343 // Make the folder name gray if it is the home folder.
344 if (bookmarkParentFolder.isEmpty()) {
345 parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_gray));
346 bookmarkParentFolderTextView.setText(R.string.home_folder);
347 bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_500));
349 parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_dark_blue));
350 bookmarkParentFolderTextView.setText(bookmarkParentFolder);
352 // Get the current theme status.
353 int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
355 // Set the text color according to the theme.
356 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_YES) {
357 // This color is a little darker than the default night mode text. But the effect is rather nice.
358 bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_300));
360 bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.black));
366 // Update the ListView.
367 bookmarksListView.setAdapter(bookmarksCursorAdapter);
369 // Set a listener to edit a bookmark when it is tapped.
370 bookmarksListView.setOnItemClickListener((AdapterView<?> parent, View view, int position, long id) -> {
371 // Convert the database ID to an int.
372 int databaseId = (int) id;
374 // Show the edit bookmark or edit bookmark folder dialog.
375 if (bookmarksDatabaseHelper.isFolder(databaseId)) {
376 // Save the current folder name, which is used in `onSaveBookmarkFolder()`.
377 oldFolderNameString = bookmarksCursor.getString(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_NAME));
379 // Show the edit bookmark folder dialog.
380 DialogFragment editBookmarkFolderDatabaseViewDialog = EditBookmarkFolderDatabaseViewDialog.folderDatabaseId(databaseId, favoriteIconBitmap);
381 editBookmarkFolderDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_folder));
383 // Show the edit bookmark dialog.
384 DialogFragment editBookmarkDatabaseViewDialog = EditBookmarkDatabaseViewDialog.bookmarkDatabaseId(databaseId, favoriteIconBitmap);
385 editBookmarkDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_bookmark));
389 // Handle long presses on the list view.
390 bookmarksListView.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() {
391 // Instantiate the common variables.
392 MenuItem selectAllMenuItem;
393 MenuItem deleteMenuItem;
394 boolean deletingBookmarks;
397 public boolean onCreateActionMode(ActionMode mode, Menu menu) {
398 // Inflate the menu for the contextual app bar.
399 getMenuInflater().inflate(R.menu.bookmarks_databaseview_context_menu, menu);
402 mode.setTitle(R.string.bookmarks);
404 // Get handles for the menu items.
405 selectAllMenuItem = menu.findItem(R.id.select_all);
406 deleteMenuItem = menu.findItem(R.id.delete);
408 // Disable the delete menu item if a delete is pending.
409 deleteMenuItem.setEnabled(!deletingBookmarks);
411 // Get the number of currently selected bookmarks.
412 int numberOfSelectedBookmarks = bookmarksListView.getCheckedItemCount();
414 // 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.
415 mode.setSubtitle(getString(R.string.selected) + " " + numberOfSelectedBookmarks);
417 // Do not show the select all menu item if all the bookmarks are already checked.
418 if (bookmarksListView.getCheckedItemCount() == bookmarksListView.getCount()) {
419 selectAllMenuItem.setVisible(false);
427 public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
433 public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) {
434 // Calculate the number of selected bookmarks.
435 int numberOfSelectedBookmarks = bookmarksListView.getCheckedItemCount();
437 // Only run the commands if at least one bookmark is selected. Otherwise, a context menu with 0 selected bookmarks is briefly displayed.
438 if (numberOfSelectedBookmarks > 0) {
439 // Update the action mode subtitle according to the number of selected bookmarks.
440 mode.setSubtitle(getString(R.string.selected) + " " + numberOfSelectedBookmarks);
442 // Only show the select all menu item if all of the bookmarks are not already selected.
443 selectAllMenuItem.setVisible(bookmarksListView.getCheckedItemCount() != bookmarksListView.getCount());
445 // Convert the database ID to an int.
446 int databaseId = (int) id;
448 // If a folder was selected, also select all the contents.
449 if (checked && bookmarksDatabaseHelper.isFolder(databaseId)) {
450 selectAllBookmarksInFolder(databaseId);
453 // Do not allow a bookmark to be deselected if the folder is selected.
455 // Get the folder name.
456 String folderName = bookmarksDatabaseHelper.getParentFolderName((int) id);
458 // If the bookmark is not in the root folder, check to see if the folder is selected.
459 if (!folderName.isEmpty()) {
460 // Get the database ID of the folder.
461 int folderDatabaseId = bookmarksDatabaseHelper.getFolderDatabaseId(folderName);
463 // Move the bookmarks cursor to the first position.
464 bookmarksCursor.moveToFirst();
466 // Initialize the folder position variable.
467 int folderPosition = -1;
469 // Get the position of the folder in the bookmarks cursor.
470 while ((folderPosition < 0) && (bookmarksCursor.getPosition() < bookmarksCursor.getCount())) {
471 // Check if the folder database ID matches the bookmark database ID.
472 if (folderDatabaseId == bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID))) {
473 // Get the folder position.
474 folderPosition = bookmarksCursor.getPosition();
476 // Check if the folder is selected.
477 if (bookmarksListView.isItemChecked(folderPosition)) {
478 // Reselect the bookmark.
479 bookmarksListView.setItemChecked(position, true);
481 // Display a snackbar explaining why the bookmark cannot be deselected.
482 Snackbar.make(bookmarksListView, R.string.cannot_deselect_bookmark, Snackbar.LENGTH_LONG).show();
486 // Increment the bookmarks cursor.
487 bookmarksCursor.moveToNext();
495 public boolean onActionItemClicked(ActionMode mode, MenuItem menuItem) {
496 // Get a the menu item ID.
497 int menuItemId = menuItem.getItemId();
499 // Run the command that corresponds to the selected menu item.
500 if (menuItemId == R.id.select_all) { // Select all the bookmarks.
501 // Get the total number of bookmarks.
502 int numberOfBookmarks = bookmarksListView.getCount();
505 for (int i = 0; i < numberOfBookmarks; i++) {
506 bookmarksListView.setItemChecked(i, true);
508 } else if (menuItemId == R.id.delete) { // Delete the selected bookmarks.
509 // Set the deleting bookmarks flag, which prevents the delete menu item from being enabled until the current process finishes.
510 deletingBookmarks = true;
512 // Get an array of the selected row IDs.
513 long[] selectedBookmarksIdsLongArray = bookmarksListView.getCheckedItemIds();
515 // 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.
516 SparseBooleanArray selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions().clone();
518 // Update the bookmarks cursor with the current contents of the bookmarks database except for the specified database IDs.
519 switch (currentFolderDatabaseId) {
520 // Get a cursor with all the folders.
521 case ALL_FOLDERS_DATABASE_ID:
522 if (sortByDisplayOrder) {
523 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray);
525 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksExcept(selectedBookmarksIdsLongArray);
529 // Get a cursor for the home folder.
530 case HOME_FOLDER_DATABASE_ID:
531 if (sortByDisplayOrder) {
532 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, "");
534 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksExcept(selectedBookmarksIdsLongArray, "");
538 // Display the selected folder.
540 // Get a cursor for the selected folder.
541 if (sortByDisplayOrder) {
542 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, currentFolderName);
544 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksExcept(selectedBookmarksIdsLongArray, currentFolderName);
548 // Update the list view.
549 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
551 // Create a Snackbar with the number of deleted bookmarks.
552 bookmarksDeletedSnackbar = Snackbar.make(findViewById(R.id.bookmarks_databaseview_coordinatorlayout),
553 getString(R.string.bookmarks_deleted) + " " + selectedBookmarksIdsLongArray.length, Snackbar.LENGTH_LONG)
554 .setAction(R.string.undo, view -> {
555 // Do nothing because everything will be handled by `onDismissed()` below.
557 .addCallback(new Snackbar.Callback() {
558 @SuppressLint("SwitchIntDef") // Ignore the lint warning about not handling the other possible events as they are covered by `default:`.
560 public void onDismissed(Snackbar snackbar, int event) {
561 if (event == Snackbar.Callback.DISMISS_EVENT_ACTION) { // The user pushed the undo button.
562 // Update the bookmarks list view with the current contents of the bookmarks database, including the "deleted bookmarks.
563 updateBookmarksListView();
565 // Re-select the previously selected bookmarks.
566 for (int i = 0; i < selectedBookmarksPositionsSparseBooleanArray.size(); i++) {
567 bookmarksListView.setItemChecked(selectedBookmarksPositionsSparseBooleanArray.keyAt(i), true);
569 } else { // The Snackbar was dismissed without the undo button being pushed.
570 // Delete each selected bookmark.
571 for (long databaseIdLong : selectedBookmarksIdsLongArray) {
572 // Convert `databaseIdLong` to an int.
573 int databaseIdInt = (int) databaseIdLong;
575 // Delete the selected bookmark.
576 bookmarksDatabaseHelper.deleteBookmark(databaseIdInt);
580 // Reset the deleting bookmarks flag.
581 deletingBookmarks = false;
583 // Enable the delete menu item.
584 deleteMenuItem.setEnabled(true);
586 // Close the activity if back has been pressed.
587 if (closeActivityAfterDismissingSnackbar) {
593 // Show the Snackbar.
594 bookmarksDeletedSnackbar.show();
597 // Consume the click.
602 public void onDestroyActionMode(ActionMode mode) {
609 public boolean onCreateOptionsMenu(Menu menu) {
611 getMenuInflater().inflate(R.menu.bookmarks_databaseview_options_menu, menu);
613 // Get a handle for the sort menu item.
614 MenuItem sortMenuItem = menu.findItem(R.id.sort);
616 // Change the sort menu item icon if the listview is sorted by display order, which restores the state after a restart.
617 if (sortByDisplayOrder) {
618 sortMenuItem.setIcon(R.drawable.sort_selected);
626 public boolean onOptionsItemSelected(MenuItem menuItem) {
627 // Get the menu item ID.
628 int menuItemId = menuItem.getItemId();
630 // Run the command that corresponds to the selected menu item.
631 if (menuItemId == android.R.id.home) { // Go Home. The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
632 // Exit the activity.
634 } else if (menuItemId == R.id.sort) { // Toggle the sort mode.
635 // Update the sort by display order tracker.
636 sortByDisplayOrder = !sortByDisplayOrder;
638 // Get a handle for the bookmarks list view.
639 ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
641 // Update the icon and display a snackbar.
642 if (sortByDisplayOrder) { // Sort by display order.
644 menuItem.setIcon(R.drawable.sort_selected);
646 // Display a Snackbar indicating the current sort type.
647 Snackbar.make(bookmarksListView, R.string.sorted_by_display_order, Snackbar.LENGTH_SHORT).show();
648 } else { // Sort by database id.
650 menuItem.setIcon(R.drawable.sort);
652 // Display a Snackbar indicating the current sort type.
653 Snackbar.make(bookmarksListView, R.string.sorted_by_database_id, Snackbar.LENGTH_SHORT).show();
656 // Update the list view.
657 updateBookmarksListView();
660 // Consume the event.
665 public void onSaveInstanceState (@NonNull Bundle savedInstanceState) {
666 // Run the default commands.
667 super.onSaveInstanceState(savedInstanceState);
669 // Store the class variables in the bundle.
670 savedInstanceState.putInt(CURRENT_FOLDER_DATABASE_ID, currentFolderDatabaseId);
671 savedInstanceState.putString(CURRENT_FOLDER_NAME, currentFolderName);
672 savedInstanceState.putBoolean(SORT_BY_DISPLAY_ORDER, sortByDisplayOrder);
676 public void onBackPressed() {
677 // 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.
678 if ((bookmarksDeletedSnackbar != null) && bookmarksDeletedSnackbar.isShown()) { // Close the bookmarks deleted snackbar before going home.
679 // Set the close flag.
680 closeActivityAfterDismissingSnackbar = true;
682 // Dismiss the snackbar.
683 bookmarksDeletedSnackbar.dismiss();
684 } else { // Go home immediately.
685 // Update the current folder in the bookmarks activity.
686 if ((currentFolderDatabaseId == ALL_FOLDERS_DATABASE_ID) || (currentFolderDatabaseId == HOME_FOLDER_DATABASE_ID)) { // All folders or the the home folder are currently displayed.
687 // Load the home folder.
688 BookmarksActivity.currentFolder = "";
689 } else { // A subfolder is currently displayed.
690 // Load the current folder.
691 BookmarksActivity.currentFolder = currentFolderName;
694 // Reload the bookmarks list view when returning to the bookmarks activity.
695 BookmarksActivity.restartFromBookmarksDatabaseViewActivity = true;
697 // Exit the bookmarks database view activity.
698 super.onBackPressed();
702 private void updateBookmarksListView() {
703 // Populate the bookmarks list view based on the spinner selection.
704 switch (currentFolderDatabaseId) {
705 // Get a cursor with all the folders.
706 case ALL_FOLDERS_DATABASE_ID:
707 if (sortByDisplayOrder) {
708 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksByDisplayOrder();
710 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarks();
714 // Get a cursor for the home folder.
715 case HOME_FOLDER_DATABASE_ID:
716 if (sortByDisplayOrder) {
717 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder("");
719 bookmarksCursor = bookmarksDatabaseHelper.getBookmarks("");
723 // Display the selected folder.
725 // Get a cursor for the selected folder.
726 if (sortByDisplayOrder) {
727 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolderName);
729 bookmarksCursor = bookmarksDatabaseHelper.getBookmarks(currentFolderName);
733 // Update the cursor adapter if it isn't null, which happens when the activity is restarted.
734 if (bookmarksCursorAdapter != null) {
735 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
739 private void selectAllBookmarksInFolder(int folderId) {
740 // Get a handle for the bookmarks list view.
741 ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
743 // Get the folder name.
744 String folderName = bookmarksDatabaseHelper.getFolderName(folderId);
746 // Get a cursor with the contents of the folder.
747 Cursor folderCursor = bookmarksDatabaseHelper.getBookmarks(folderName);
749 // Move to the beginning of the cursor.
750 folderCursor.moveToFirst();
752 while (folderCursor.getPosition() < folderCursor.getCount()) {
753 // Get the bookmark database ID.
754 int bookmarkId = folderCursor.getInt(folderCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID));
756 // Move the bookmarks cursor to the first position.
757 bookmarksCursor.moveToFirst();
759 // Initialize the bookmark position variable.
760 int bookmarkPosition = -1;
762 // Get the position of this bookmark in the bookmarks cursor.
763 while ((bookmarkPosition < 0) && (bookmarksCursor.getPosition() < bookmarksCursor.getCount())) {
764 // Check if the bookmark IDs match.
765 if (bookmarkId == bookmarksCursor.getInt(bookmarksCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.ID))) {
766 // Get the bookmark position.
767 bookmarkPosition = bookmarksCursor.getPosition();
769 // If this bookmark is a folder, select all the bookmarks inside it.
770 if (bookmarksDatabaseHelper.isFolder(bookmarkId)) {
771 selectAllBookmarksInFolder(bookmarkId);
774 // Select the bookmark.
775 bookmarksListView.setItemChecked(bookmarkPosition, true);
778 // Increment the bookmarks cursor position.
779 bookmarksCursor.moveToNext();
782 // Move to the next position.
783 folderCursor.moveToNext();
788 public void onSaveBookmark(DialogFragment dialogFragment, int selectedBookmarkDatabaseId, @NonNull Bitmap favoriteIconBitmap) {
789 // Get the dialog from the dialog fragment.
790 Dialog dialog = dialogFragment.getDialog();
792 // Remove the incorrect lint warning below that the dialog might be null.
793 assert dialog != null;
795 // Get handles for the views from dialog fragment.
796 RadioButton currentIconRadioButton = dialog.findViewById(R.id.current_icon_radiobutton);
797 EditText bookmarkNameEditText = dialog.findViewById(R.id.bookmark_name_edittext);
798 EditText bookmarkUrlEditText = dialog.findViewById(R.id.bookmark_url_edittext);
799 Spinner folderSpinner = dialog.findViewById(R.id.bookmark_folder_spinner);
800 EditText displayOrderEditText = dialog.findViewById(R.id.bookmark_display_order_edittext);
802 // Extract the bookmark information.
803 String bookmarkNameString = bookmarkNameEditText.getText().toString();
804 String bookmarkUrlString = bookmarkUrlEditText.getText().toString();
805 int folderDatabaseId = (int) folderSpinner.getSelectedItemId();
806 int displayOrderInt = Integer.parseInt(displayOrderEditText.getText().toString());
808 // Instantiate the parent folder name `String`.
809 String parentFolderNameString;
811 // Set the parent folder name.
812 if (folderDatabaseId == HOME_FOLDER_DATABASE_ID) { // The home folder is selected. Use `""`.
813 parentFolderNameString = "";
814 } else { // Get the parent folder name from the database.
815 parentFolderNameString = bookmarksDatabaseHelper.getFolderName(folderDatabaseId);
818 // Update the bookmark.
819 if (currentIconRadioButton.isChecked()) { // Update the bookmark without changing the favorite icon.
820 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt);
821 } else { // Update the bookmark using the `WebView` favorite icon.
822 // Create a favorite icon byte array output stream.
823 ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
825 // Convert the favorite icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
826 favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
828 // Convert the favorite icon byte array stream to a byte array.
829 byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
831 // Update the bookmark and the favorite icon.
832 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt, newFavoriteIconByteArray);
835 // Update the list view.
836 updateBookmarksListView();
840 public void onSaveBookmarkFolder(DialogFragment dialogFragment, int selectedBookmarkDatabaseId, @NonNull Bitmap favoriteIconBitmap) {
841 // Get the dialog from the dialog fragment.
842 Dialog dialog = dialogFragment.getDialog();
844 // Remove the incorrect lint warning below that the dialog might be null.
845 assert dialog != null;
847 // Get handles for the views from dialog fragment.
848 RadioButton currentIconRadioButton = dialog.findViewById(R.id.current_icon_radiobutton);
849 RadioButton defaultIconRadioButton = dialog.findViewById(R.id.default_icon_radiobutton);
850 ImageView defaultIconImageView = dialog.findViewById(R.id.default_icon_imageview);
851 EditText folderNameEditText = dialog.findViewById(R.id.folder_name_edittext);
852 Spinner parentFolderSpinner = dialog.findViewById(R.id.parent_folder_spinner);
853 EditText displayOrderEditText = dialog.findViewById(R.id.display_order_edittext);
855 // Extract the folder information.
856 String newFolderNameString = folderNameEditText.getText().toString();
857 int parentFolderDatabaseId = (int) parentFolderSpinner.getSelectedItemId();
858 int displayOrderInt = Integer.parseInt(displayOrderEditText.getText().toString());
860 // Instantiate the parent folder name `String`.
861 String parentFolderNameString;
863 // Set the parent folder name.
864 if (parentFolderDatabaseId == HOME_FOLDER_DATABASE_ID) { // The home folder is selected. Use `""`.
865 parentFolderNameString = "";
866 } else { // Get the parent folder name from the database.
867 parentFolderNameString = bookmarksDatabaseHelper.getFolderName(parentFolderDatabaseId);
870 // Update the folder.
871 if (currentIconRadioButton.isChecked()) { // Update the folder without changing the favorite icon.
872 bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt);
873 } else { // Update the folder and the icon.
874 // Create the new folder icon Bitmap.
875 Bitmap folderIconBitmap;
877 // Populate the new folder icon bitmap.
878 if (defaultIconRadioButton.isChecked()) {
879 // Get the default folder icon drawable.
880 Drawable folderIconDrawable = defaultIconImageView.getDrawable();
882 // Convert the folder icon drawable to a bitmap drawable.
883 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
885 // Convert the folder icon bitmap drawable to a bitmap.
886 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
887 } else { // Use the `WebView` favorite icon.
888 // Get a copy of the favorite icon bitmap.
889 folderIconBitmap = favoriteIconBitmap;
892 // Create a folder icon byte array output stream.
893 ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
895 // Convert the folder icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
896 folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
898 // Convert the folder icon byte array stream to a byte array.
899 byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
901 // Update the folder and the icon.
902 bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt, newFolderIconByteArray);
905 // Update the list view.
906 updateBookmarksListView();
910 public void onDestroy() {
911 // Close the bookmarks cursor and database.
912 bookmarksCursor.close();
913 bookmarksDatabaseHelper.close();
915 // Run the default commands.