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.Activity;
24 import android.app.Dialog;
25 import android.content.Context;
26 import android.content.Intent;
27 import android.content.SharedPreferences;
28 import android.content.res.Configuration;
29 import android.database.Cursor;
30 import android.graphics.Bitmap;
31 import android.graphics.BitmapFactory;
32 import android.graphics.Typeface;
33 import android.graphics.drawable.BitmapDrawable;
34 import android.graphics.drawable.Drawable;
35 import android.os.Bundle;
36 import android.preference.PreferenceManager;
37 import android.util.SparseBooleanArray;
38 import android.view.ActionMode;
39 import android.view.Menu;
40 import android.view.MenuItem;
41 import android.view.View;
42 import android.view.ViewGroup;
43 import android.view.WindowManager;
44 import android.widget.AbsListView;
45 import android.widget.CursorAdapter;
46 import android.widget.EditText;
47 import android.widget.ImageView;
48 import android.widget.ListView;
49 import android.widget.RadioButton;
50 import android.widget.TextView;
52 import androidx.annotation.NonNull;
53 import androidx.appcompat.app.ActionBar;
54 import androidx.appcompat.app.AppCompatActivity;
55 import androidx.appcompat.widget.Toolbar;
56 import androidx.core.app.NavUtils;
57 import androidx.fragment.app.DialogFragment;
59 import com.google.android.material.floatingactionbutton.FloatingActionButton;
60 import com.google.android.material.snackbar.Snackbar;
62 import com.stoutner.privacybrowser.dialogs.CreateBookmarkDialog;
63 import com.stoutner.privacybrowser.dialogs.CreateBookmarkFolderDialog;
64 import com.stoutner.privacybrowser.dialogs.EditBookmarkDialog;
65 import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDialog;
66 import com.stoutner.privacybrowser.dialogs.MoveToFolderDialog;
67 import com.stoutner.privacybrowser.R;
68 import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
70 import java.io.ByteArrayOutputStream;
71 import java.util.ArrayList;
73 public class BookmarksActivity extends AppCompatActivity implements CreateBookmarkDialog.CreateBookmarkListener, CreateBookmarkFolderDialog.CreateBookmarkFolderListener, EditBookmarkDialog.EditBookmarkListener,
74 EditBookmarkFolderDialog.EditBookmarkFolderListener, MoveToFolderDialog.MoveToFolderListener {
76 // `currentFolder` is public static so it can be accessed from `MoveToFolderDialog` and `BookmarksDatabaseViewActivity`.
77 // It is used in `onCreate`, `onOptionsItemSelected()`, `onBackPressed()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`,
78 // and `loadFolder()`.
79 public static String currentFolder;
81 // `checkedItemIds` is public static so it can be accessed from `MoveToFolderDialog`. It is also used in `onCreate()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`,
82 // and `updateMoveIcons()`.
83 public static long[] checkedItemIds;
85 // `restartFromBookmarksDatabaseViewActivity` is public static so it can be accessed from `BookmarksDatabaseViewActivity`. It is also used in `onRestart()`.
86 public static boolean restartFromBookmarksDatabaseViewActivity;
89 // Define the saved instance state constants.
90 private final String CHECKED_BOOKMARKS_ARRAY_LIST = "checked_bookmarks_array_list";
92 // Define the class menu items.
93 private MenuItem moveBookmarkUpMenuItem;
94 private MenuItem moveBookmarkDownMenuItem;
96 // `bookmarksDatabaseHelper` is used in `onCreate()`, `onOptionsItemSelected()`, `onBackPressed()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`,
97 // `onMoveToFolder()`, `deleteBookmarkFolderContents()`, `loadFolder()`, and `onDestroy()`.
98 private BookmarksDatabaseHelper bookmarksDatabaseHelper;
100 // `bookmarksListView` is used in `onCreate()`, `onOptionsItemSelected()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`,
101 // `updateMoveIcons()`, `scrollBookmarks()`, and `loadFolder()`.
102 private ListView bookmarksListView;
104 // `bookmarksCursor` is used in `onCreate()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`, `deleteBookmarkFolderContents()`,
105 // `loadFolder()`, and `onDestroy()`.
106 private Cursor bookmarksCursor;
108 // `bookmarksCursorAdapter` is used in `onCreate(), `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`, and `onLoadFolder()`.
109 private CursorAdapter bookmarksCursorAdapter;
111 // `contextualActionMode` is used in `onCreate()`, `onSaveEditBookmark()`, `onSaveEditBookmarkFolder()` and `onMoveToFolder()`.
112 private ActionMode contextualActionMode;
114 // `appBar` is used in `onCreate()` and `loadFolder()`.
115 private ActionBar appBar;
117 // `oldFolderName` is used in `onCreate()` and `onSaveBookmarkFolder()`.
118 private String oldFolderNameString;
120 // `bookmarksDeletedSnackbar` is used in `onCreate()`, `onOptionsItemSelected()`, and `onBackPressed()`.
121 private Snackbar bookmarksDeletedSnackbar;
123 // `closeActivityAfterDismissingSnackbar` is used in `onCreate()`, `onOptionsItemSelected()`, and `onBackPressed()`.
124 private boolean closeActivityAfterDismissingSnackbar;
126 // The favorite icon byte array is populated in `onCreate()` and used in `onOptionsItemSelected()`.
127 private byte[] favoriteIconByteArray;
130 protected void onCreate(Bundle savedInstanceState) {
131 // Get a handle for the shared preferences.
132 SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
134 // Get the screenshot preference.
135 boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
137 // Disable screenshots if not allowed.
138 if (!allowScreenshots) {
139 getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
143 setTheme(R.style.PrivacyBrowser);
145 // Run the default commands.
146 super.onCreate(savedInstanceState);
148 // Get the intent that launched the activity.
149 Intent launchingIntent = getIntent();
151 // Store the current URL and title.
152 String currentUrl = launchingIntent.getStringExtra("current_url");
153 String currentTitle = launchingIntent.getStringExtra("current_title");
155 // Set the current folder variable.
156 if (launchingIntent.getStringExtra("current_folder") != null) { // Set the current folder from the intent.
157 currentFolder = launchingIntent.getStringExtra("current_folder");
158 } else { // Set the current folder to be `""`, which is the home folder.
162 // Get the favorite icon byte array.
163 favoriteIconByteArray = launchingIntent.getByteArrayExtra("favorite_icon_byte_array");
165 // Remove the incorrect lint warning that the favorite icon byte array might be null.
166 assert favoriteIconByteArray != null;
168 // Convert the favorite icon byte array to a bitmap.
169 Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
171 // Set the content view.
172 setContentView(R.layout.bookmarks_coordinatorlayout);
174 // The AndroidX toolbar must be used until the minimum API is >= 21.
175 final Toolbar toolbar = findViewById(R.id.bookmarks_toolbar);
176 setSupportActionBar(toolbar);
178 // Get a handle for the activity, the app bar, and the ListView.
179 final Activity bookmarksActivity = this;
180 appBar = getSupportActionBar();
181 bookmarksListView = findViewById(R.id.bookmarks_listview);
183 // Remove the incorrect lint warning that `appBar` might be null.
184 assert appBar != null;
186 // Display the home arrow on the app bar.
187 appBar.setDisplayHomeAsUpEnabled(true);
189 // Initialize the database helper. `this` specifies the context. The two `nulls` do not specify the database name or a `CursorFactory`.
190 // The `0` specifies a database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
191 bookmarksDatabaseHelper = new BookmarksDatabaseHelper(this, null, null, 0);
193 // Load the home folder.
196 // Set a listener so that tapping a list item loads the URL or folder.
197 bookmarksListView.setOnItemClickListener((parent, view, position, id) -> {
198 // Convert the id from long to int to match the format of the bookmarks database.
199 int databaseID = (int) id;
201 // Get the bookmark cursor for this ID and move it to the first row.
202 Cursor bookmarkCursor = bookmarksDatabaseHelper.getBookmark(databaseID);
203 bookmarkCursor.moveToFirst();
205 // Act upon the bookmark according to the type.
206 if (bookmarkCursor.getInt(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1) { // The selected bookmark is a folder.
207 // Update the current folder.
208 currentFolder = bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
210 // Load the new folder.
212 } else { // The selected bookmark is not a folder.
213 // Get the bookmark URL and assign it to `formattedUrlString`.
214 MainWebViewActivity.urlToLoadOnRestart = bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL));
216 // Set `MainWebViewActivity` to load the new URL on restart.
217 MainWebViewActivity.loadUrlOnRestart = true;
219 // Update the bookmarks folder for the bookmarks drawer in `MainWebViewActivity`.
220 MainWebViewActivity.currentBookmarksFolder = currentFolder;
222 // Close the bookmarks drawer and reload the bookmarks `ListView` when returning to `MainWebViewActivity`.
223 MainWebViewActivity.restartFromBookmarksActivity = true;
225 // Return to `MainWebViewActivity`.
226 NavUtils.navigateUpFromSameTask(bookmarksActivity);
229 // Close the `Cursor`.
230 bookmarkCursor.close();
233 // Handle long presses on the list view.
234 bookmarksListView.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() {
235 // Instantiate the common variables.
236 MenuItem editBookmarkMenuItem;
237 MenuItem deleteBookmarksMenuItem;
238 MenuItem selectAllBookmarksMenuItem;
239 boolean deletingBookmarks;
242 public boolean onCreateActionMode(ActionMode mode, Menu menu) {
243 // Inflate the menu for the contextual app bar.
244 getMenuInflater().inflate(R.menu.bookmarks_context_menu, menu);
247 if (currentFolder.isEmpty()) { // Use `R.string.bookmarks` if in the home folder.
248 mode.setTitle(R.string.bookmarks);
249 } else { // Use the current folder name as the title.
250 mode.setTitle(currentFolder);
253 // Get handles for menu items that need to be selectively disabled.
254 moveBookmarkUpMenuItem = menu.findItem(R.id.move_bookmark_up);
255 moveBookmarkDownMenuItem = menu.findItem(R.id.move_bookmark_down);
256 editBookmarkMenuItem = menu.findItem(R.id.edit_bookmark);
257 deleteBookmarksMenuItem = menu.findItem(R.id.delete_bookmark);
258 selectAllBookmarksMenuItem = menu.findItem(R.id.context_menu_select_all_bookmarks);
260 // Disable the delete bookmarks menu item if a delete is pending.
261 deleteBookmarksMenuItem.setEnabled(!deletingBookmarks);
263 // Store a handle for the contextual action mode so it can be closed programatically.
264 contextualActionMode = mode;
271 public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
272 // Get a handle for the move to folder menu item.
273 MenuItem moveToFolderMenuItem = menu.findItem(R.id.move_to_folder);
275 // Get a Cursor with all of the folders.
276 Cursor folderCursor = bookmarksDatabaseHelper.getAllFolders();
278 // Enable the move to folder menu item if at least one folder exists.
279 moveToFolderMenuItem.setVisible(folderCursor.getCount() > 0);
286 public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) {
287 // Get the number of selected bookmarks.
288 int numberOfSelectedBookmarks = bookmarksListView.getCheckedItemCount();
290 // Adjust the ActionMode and the menu according to the number of selected bookmarks.
291 if (numberOfSelectedBookmarks == 1) { // One bookmark is selected.
292 // List the number of selected bookmarks in the subtitle.
293 mode.setSubtitle(getString(R.string.selected) + " 1");
295 // Show the `Move Up`, `Move Down`, and `Edit` options.
296 moveBookmarkUpMenuItem.setVisible(true);
297 moveBookmarkDownMenuItem.setVisible(true);
298 editBookmarkMenuItem.setVisible(true);
300 // Update the enabled status of the move icons.
302 } else { // More than one bookmark is selected.
303 // List the number of selected bookmarks in the subtitle.
304 mode.setSubtitle(getString(R.string.selected) + " " + numberOfSelectedBookmarks);
306 // Hide non-applicable `MenuItems`.
307 moveBookmarkUpMenuItem.setVisible(false);
308 moveBookmarkDownMenuItem.setVisible(false);
309 editBookmarkMenuItem.setVisible(false);
312 // Do not show the select all menu item if all the bookmarks are already checked.
313 if (bookmarksListView.getCheckedItemCount() == bookmarksListView.getCount()) {
314 selectAllBookmarksMenuItem.setVisible(false);
316 selectAllBookmarksMenuItem.setVisible(true);
321 public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
322 // Instantiate the common variables.
323 int selectedBookmarkPosition;
324 int selectedBookmarkNewPosition;
325 final SparseBooleanArray selectedBookmarksPositionsSparseBooleanArray;
327 switch (item.getItemId()) {
328 case R.id.move_bookmark_up:
329 // Get the array of checked bookmark positions.
330 selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
332 // Store the position of the selected bookmark. Only one bookmark is selected when `move_bookmark_up` is enabled.
333 selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(0);
335 // Calculate the new position of the selected bookmark.
336 selectedBookmarkNewPosition = selectedBookmarkPosition - 1;
338 // Iterate through the bookmarks.
339 for (int i = 0; i < bookmarksListView.getCount(); i++) {
340 // Get the database ID for the current bookmark.
341 int currentBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(i);
343 // Update the display order for the current bookmark.
344 if (i == selectedBookmarkPosition) { // The current bookmark is the selected bookmark.
345 // Move the current bookmark up one.
346 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i - 1);
347 } else if ((i + 1) == selectedBookmarkPosition){ // The current bookmark is immediately above the selected bookmark.
348 // Move the current bookmark down one.
349 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i + 1);
350 } else { // The current bookmark is not changing positions.
351 // Move `bookmarksCursor` to the current bookmark position.
352 bookmarksCursor.moveToPosition(i);
354 // Update the display order only if it is not correct in the database.
355 if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i) {
356 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i);
361 // Update the bookmarks cursor with the current contents of the bookmarks database.
362 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
364 // Update the `ListView`.
365 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
367 // Scroll with the bookmark.
368 scrollBookmarks(selectedBookmarkNewPosition);
370 // Update the enabled status of the move icons.
374 case R.id.move_bookmark_down:
375 // Get the array of checked bookmark positions.
376 selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
378 // Store the position of the selected bookmark. Only one bookmark is selected when `move_bookmark_down` is enabled.
379 selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(0);
381 // Calculate the new position of the selected bookmark.
382 selectedBookmarkNewPosition = selectedBookmarkPosition + 1;
384 // Iterate through the bookmarks.
385 for (int i = 0; i <bookmarksListView.getCount(); i++) {
386 // Get the database ID for the current bookmark.
387 int currentBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(i);
389 // Update the display order for the current bookmark.
390 if (i == selectedBookmarkPosition) { // The current bookmark is the selected bookmark.
391 // Move the current bookmark down one.
392 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i + 1);
393 } else if ((i - 1) == selectedBookmarkPosition) { // The current bookmark is immediately below the selected bookmark.
394 // Move the bookmark below the selected bookmark up one.
395 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i - 1);
396 } else { // The current bookmark is not changing positions.
397 // Move `bookmarksCursor` to the current bookmark position.
398 bookmarksCursor.moveToPosition(i);
400 // Update the display order only if it is not correct in the database.
401 if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i) {
402 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i);
407 // Update the bookmarks cursor with the current contents of the bookmarks database.
408 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
410 // Update the `ListView`.
411 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
413 // Scroll with the bookmark.
414 scrollBookmarks(selectedBookmarkNewPosition);
416 // Update the enabled status of the move icons.
420 case R.id.move_to_folder:
421 // Store `checkedItemIds` for use by the `AlertDialog`.
422 checkedItemIds = bookmarksListView.getCheckedItemIds();
424 // Show the `MoveToFolderDialog` `AlertDialog` and name the instance `@string/move_to_folder
425 DialogFragment moveToFolderDialog = new MoveToFolderDialog();
426 moveToFolderDialog.show(getSupportFragmentManager(), getResources().getString(R.string.move_to_folder));
429 case R.id.edit_bookmark:
430 // Get the array of checked bookmark positions.
431 selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
433 // Get the position of the selected bookmark. Only one bookmark is selected when `edit_bookmark_down` is enabled.
434 selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(0);
436 // Move the `Cursor` to the selected position and find out if it is a folder.
437 bookmarksCursor.moveToPosition(selectedBookmarkPosition);
438 boolean isFolder = (bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1);
440 // Get the selected bookmark database ID.
441 int databaseId = bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper._ID));
443 // Show the edit bookmark or edit bookmark folder dialog.
445 // Save the current folder name, which is used in `onSaveBookmarkFolder()`.
446 oldFolderNameString = bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
448 // Show the edit bookmark folder dialog.
449 DialogFragment editFolderDialog = EditBookmarkFolderDialog.folderDatabaseId(databaseId, favoriteIconBitmap);
450 editFolderDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_folder));
452 // Show the edit bookmark dialog.
453 DialogFragment editBookmarkDialog = EditBookmarkDialog.bookmarkDatabaseId(databaseId, favoriteIconBitmap);
454 editBookmarkDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_bookmark));
458 case R.id.delete_bookmark:
459 // Set the deleting bookmarks flag, which prevents the delete menu item from being enabled until the current process finishes.
460 deletingBookmarks = true;
462 // Get an array of the selected row IDs.
463 final long[] selectedBookmarksIdsLongArray = bookmarksListView.getCheckedItemIds();
465 // 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.
466 selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions().clone();
468 // Update the bookmarks cursor with the current contents of the bookmarks database except for the specified database IDs.
469 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, currentFolder);
471 // Update the list view.
472 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
474 // Create a Snackbar with the number of deleted bookmarks.
475 bookmarksDeletedSnackbar = Snackbar.make(findViewById(R.id.bookmarks_coordinatorlayout), getString(R.string.bookmarks_deleted) + " " + selectedBookmarksIdsLongArray.length,
476 Snackbar.LENGTH_LONG)
477 .setAction(R.string.undo, view -> {
478 // Do nothing because everything will be handled by `onDismissed()` below.
480 .addCallback(new Snackbar.Callback() {
481 @SuppressLint("SwitchIntDef") // Ignore the lint warning about not handling the other possible events as they are covered by `default:`.
483 public void onDismissed(Snackbar snackbar, int event) {
484 if (event == Snackbar.Callback.DISMISS_EVENT_ACTION) { // The user pushed the undo button.
485 // Update the bookmarks cursor with the current contents of the bookmarks database, including the "deleted" bookmarks.
486 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
488 // Update the list view.
489 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
491 // Re-select the previously selected bookmarks.
492 for (int i = 0; i < selectedBookmarksPositionsSparseBooleanArray.size(); i++) {
493 bookmarksListView.setItemChecked(selectedBookmarksPositionsSparseBooleanArray.keyAt(i), true);
495 } else { // The snackbar was dismissed without the undo button being pushed.
496 // Delete each selected bookmark.
497 for (long databaseIdLong : selectedBookmarksIdsLongArray) {
498 // Convert `databaseIdLong` to an int.
499 int databaseIdInt = (int) databaseIdLong;
501 // Delete the contents of the folder if the selected bookmark is a folder.
502 if (bookmarksDatabaseHelper.isFolder(databaseIdInt)) {
503 deleteBookmarkFolderContents(databaseIdInt);
506 // Delete the selected bookmark.
507 bookmarksDatabaseHelper.deleteBookmark(databaseIdInt);
510 // Update the display order.
511 for (int i = 0; i < bookmarksListView.getCount(); i++) {
512 // Get the database ID for the current bookmark.
513 int currentBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(i);
515 // Move `bookmarksCursor` to the current bookmark position.
516 bookmarksCursor.moveToPosition(i);
518 // Update the display order only if it is not correct in the database.
519 if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i) {
520 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i);
525 // Reset the deleting bookmarks flag.
526 deletingBookmarks = false;
528 // Enable the delete bookmarks menu item.
529 deleteBookmarksMenuItem.setEnabled(true);
531 // Close the activity if back has been pressed.
532 if (closeActivityAfterDismissingSnackbar) {
539 bookmarksDeletedSnackbar.show();
542 case R.id.context_menu_select_all_bookmarks:
543 // Get the total number of bookmarks.
544 int numberOfBookmarks = bookmarksListView.getCount();
547 for (int i = 0; i < numberOfBookmarks; i++) {
548 bookmarksListView.setItemChecked(i, true);
553 // Consume the click.
558 public void onDestroyActionMode(ActionMode mode) {
563 // Get handles for the `FloatingActionButtons`.
564 FloatingActionButton createBookmarkFolderFab = findViewById(R.id.create_bookmark_folder_fab);
565 FloatingActionButton createBookmarkFab = findViewById(R.id.create_bookmark_fab);
567 // Set the create new bookmark folder FAB to display the `AlertDialog`.
568 createBookmarkFolderFab.setOnClickListener(v -> {
569 // Create a create bookmark folder dialog.
570 DialogFragment createBookmarkFolderDialog = CreateBookmarkFolderDialog.createBookmarkFolder(favoriteIconBitmap);
572 // Show the create bookmark folder dialog.
573 createBookmarkFolderDialog.show(getSupportFragmentManager(), getString(R.string.create_folder));
576 // Set the create new bookmark FAB to display the `AlertDialog`.
577 createBookmarkFab.setOnClickListener(view -> {
578 // Remove the incorrect lint warning below.
579 assert currentUrl != null;
580 assert currentTitle != null;
582 // Instantiate the create bookmark dialog.
583 DialogFragment createBookmarkDialog = CreateBookmarkDialog.createBookmark(currentUrl, currentTitle, favoriteIconBitmap);
585 // Display the create bookmark dialog.
586 createBookmarkDialog.show(getSupportFragmentManager(), getResources().getString(R.string.create_bookmark));
589 // Restore the state if the app has been restarted.
590 if (savedInstanceState != null) {
591 // Update the bookmarks list view after it has loaded.
592 bookmarksListView.post(() -> {
593 // Get the checked bookmarks array list.
594 ArrayList<Integer> checkedBookmarksArrayList = savedInstanceState.getIntegerArrayList(CHECKED_BOOKMARKS_ARRAY_LIST);
596 // Check each previously checked bookmark in the list view. When the minimum API >= 24 a `forEach()` command can be used instead.
597 if (checkedBookmarksArrayList != null) {
598 for (int i = 0; i < checkedBookmarksArrayList.size(); i++) {
599 bookmarksListView.setItemChecked(checkedBookmarksArrayList.get(i), true);
607 public void onRestart() {
608 // Run the default commands.
611 // Update the list view if returning from the bookmarks database view activity.
612 if (restartFromBookmarksDatabaseViewActivity) {
613 // Load the current folder in the list view.
616 // Reset `restartFromBookmarksDatabaseViewActivity`.
617 restartFromBookmarksDatabaseViewActivity = false;
622 public void onSaveInstanceState(@NonNull Bundle savedInstanceState) {
623 // Run the default commands.
624 super.onSaveInstanceState(savedInstanceState);
626 // Get the array of the checked items.
627 SparseBooleanArray checkedBookmarksSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
629 // Create a checked items array list.
630 ArrayList<Integer> checkedBookmarksArrayList = new ArrayList<>();
632 // Add each checked bookmark position to the array list.
633 for (int i = 0; i < checkedBookmarksSparseBooleanArray.size(); i++) {
634 // Check to see if the bookmark is currently checked. Bookmarks that have previously been checked but currently aren't will be populated in the sparse boolean array, but will return false.
635 if (checkedBookmarksSparseBooleanArray.valueAt(i)) {
636 // Add the bookmark position to the checked bookmarks array list.
637 checkedBookmarksArrayList.add(checkedBookmarksSparseBooleanArray.keyAt(i));
641 // Store the checked items array list in the saved instance state.
642 savedInstanceState.putIntegerArrayList(CHECKED_BOOKMARKS_ARRAY_LIST, checkedBookmarksArrayList);
646 public boolean onCreateOptionsMenu(Menu menu) {
648 getMenuInflater().inflate(R.menu.bookmarks_options_menu, menu);
655 public boolean onOptionsItemSelected(MenuItem menuItem) {
656 switch (menuItem.getItemId()) {
657 case android.R.id.home: // The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
658 if (currentFolder.isEmpty()) { // Currently in the home folder.
659 // Run the back commands.
661 } else { // Currently in a subfolder.
662 // Place the former parent folder in `currentFolder`.
663 currentFolder = bookmarksDatabaseHelper.getParentFolderName(currentFolder);
665 // Load the new folder.
670 case R.id.options_menu_select_all_bookmarks:
671 // Get the total number of bookmarks.
672 int numberOfBookmarks = bookmarksListView.getCount();
675 for (int i = 0; i < numberOfBookmarks; i++) {
676 bookmarksListView.setItemChecked(i, true);
680 case R.id.bookmarks_database_view:
681 // Create an intent to launch the bookmarks database view activity.
682 Intent bookmarksDatabaseViewIntent = new Intent(this, BookmarksDatabaseViewActivity.class);
684 // Include the favorite icon byte array to the intent.
685 bookmarksDatabaseViewIntent.putExtra("favorite_icon_byte_array", favoriteIconByteArray);
688 startActivity(bookmarksDatabaseViewIntent);
695 public void onBackPressed() {
696 // Check to see if a snackbar is currently displayed. If so, it must be closed before exiting so that a pending delete is completed before reloading the list view in the bookmarks drawer.
697 if ((bookmarksDeletedSnackbar != null) && bookmarksDeletedSnackbar.isShown()) { // Close the bookmarks deleted snackbar before going home.
698 // Set the close flag.
699 closeActivityAfterDismissingSnackbar = true;
701 // Dismiss the snackbar.
702 bookmarksDeletedSnackbar.dismiss();
703 } else { // Go home immediately.
704 // Update the bookmarks folder for the bookmarks drawer in the main WebView activity.
705 MainWebViewActivity.currentBookmarksFolder = currentFolder;
707 // Close the bookmarks drawer and reload the bookmarks ListView when returning to the main WebView activity.
708 MainWebViewActivity.restartFromBookmarksActivity = true;
710 // Exit the bookmarks activity.
711 super.onBackPressed();
716 public void onCreateBookmark(DialogFragment dialogFragment, Bitmap favoriteIconBitmap) {
717 // Get the alert dialog from the fragment.
718 Dialog dialog = dialogFragment.getDialog();
720 // Remove the incorrect lint warning below that the dialog might be null.
721 assert dialog != null;
723 // Get the views from the dialog fragment.
724 EditText createBookmarkNameEditText = dialog.findViewById(R.id.create_bookmark_name_edittext);
725 EditText createBookmarkUrlEditText = dialog.findViewById(R.id.create_bookmark_url_edittext);
727 // Extract the strings from the edit texts.
728 String bookmarkNameString = createBookmarkNameEditText.getText().toString();
729 String bookmarkUrlString = createBookmarkUrlEditText.getText().toString();
731 // Create a favorite icon byte array output stream.
732 ByteArrayOutputStream favoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
734 // Convert the favorite icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
735 favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, favoriteIconByteArrayOutputStream);
737 // Convert the favorite icon byte array stream to a byte array.
738 byte[] favoriteIconByteArray = favoriteIconByteArrayOutputStream.toByteArray();
740 // Display the new bookmark below the current items in the (0 indexed) list.
741 int newBookmarkDisplayOrder = bookmarksListView.getCount();
743 // Create the bookmark.
744 bookmarksDatabaseHelper.createBookmark(bookmarkNameString, bookmarkUrlString, currentFolder, newBookmarkDisplayOrder, favoriteIconByteArray);
746 // Update the bookmarks cursor with the current contents of this folder.
747 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
749 // Update the `ListView`.
750 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
752 // Scroll to the new bookmark.
753 bookmarksListView.setSelection(newBookmarkDisplayOrder);
757 public void onCreateBookmarkFolder(DialogFragment dialogFragment, @NonNull Bitmap favoriteIconBitmap) {
758 // Get the dialog from the dialog fragment.
759 Dialog dialog = dialogFragment.getDialog();
761 // Remove the incorrect lint warning below that the dialog might be null.
762 assert dialog != null;
764 // Get handles for the views in the dialog fragment.
765 EditText createFolderNameEditText = dialog.findViewById(R.id.create_folder_name_edittext);
766 RadioButton defaultFolderIconRadioButton = dialog.findViewById(R.id.create_folder_default_icon_radiobutton);
767 ImageView folderIconImageView = dialog.findViewById(R.id.create_folder_default_icon);
769 // Get new folder name string.
770 String folderNameString = createFolderNameEditText.getText().toString();
772 // Create a folder icon bitmap.
773 Bitmap folderIconBitmap;
775 // Set the folder icon bitmap according to the dialog.
776 if (defaultFolderIconRadioButton.isChecked()) { // Use the default folder icon.
777 // Get the default folder icon drawable.
778 Drawable folderIconDrawable = folderIconImageView.getDrawable();
780 // Convert the folder icon drawable to a bitmap drawable.
781 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
783 // Convert the folder icon bitmap drawable to a bitmap.
784 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
785 } else { // Use the WebView favorite icon.
786 // Copy the favorite icon bitmap to the folder icon bitmap.
787 folderIconBitmap = favoriteIconBitmap;
790 // Create a folder icon byte array output stream.
791 ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
793 // Convert the folder icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
794 folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
796 // Convert the folder icon byte array stream to a byte array.
797 byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
799 // Move all the bookmarks down one in the display order.
800 for (int i = 0; i < bookmarksListView.getCount(); i++) {
801 int databaseId = (int) bookmarksListView.getItemIdAtPosition(i);
802 bookmarksDatabaseHelper.updateDisplayOrder(databaseId, i + 1);
805 // Create the folder, which will be placed at the top of the `ListView`.
806 bookmarksDatabaseHelper.createFolder(folderNameString, currentFolder, folderIconByteArray);
808 // Update the bookmarks cursor with the current contents of this folder.
809 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
811 // Update the `ListView`.
812 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
814 // Scroll to the new folder.
815 bookmarksListView.setSelection(0);
819 public void onSaveBookmark(DialogFragment dialogFragment, int selectedBookmarkDatabaseId, Bitmap favoriteIconBitmap) {
820 // Get the dialog from the dialog fragment.
821 Dialog dialog = dialogFragment.getDialog();
823 // Remove the incorrect lint warning below that the dialog might be null.
824 assert dialog != null;
826 // Get handles for the views from `dialogFragment`.
827 EditText editBookmarkNameEditText = dialog.findViewById(R.id.edit_bookmark_name_edittext);
828 EditText editBookmarkUrlEditText = dialog.findViewById(R.id.edit_bookmark_url_edittext);
829 RadioButton currentBookmarkIconRadioButton = dialog.findViewById(R.id.edit_bookmark_current_icon_radiobutton);
831 // Store the bookmark strings.
832 String bookmarkNameString = editBookmarkNameEditText.getText().toString();
833 String bookmarkUrlString = editBookmarkUrlEditText.getText().toString();
835 // Update the bookmark.
836 if (currentBookmarkIconRadioButton.isChecked()) { // Update the bookmark without changing the favorite icon.
837 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString);
838 } else { // Update the bookmark using the WebView favorite icon.
839 // Create a favorite icon byte array output stream.
840 ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
842 // Convert the favorite icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
843 favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
845 // Convert the favorite icon byte array stream to a byte array.
846 byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
848 // Update the bookmark and the favorite icon.
849 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, newFavoriteIconByteArray);
852 // Close the contextual action mode.
853 contextualActionMode.finish();
855 // Update the bookmarks cursor with the contents of the current folder.
856 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
858 // Update the `ListView`.
859 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
863 public void onSaveBookmarkFolder(DialogFragment dialogFragment, int selectedFolderDatabaseId, Bitmap favoriteIconBitmap) {
864 // Get the dialog from the dialog fragment.
865 Dialog dialog = dialogFragment.getDialog();
867 // Remove the incorrect lint warning below that the dialog might be null.
868 assert dialog != null;
870 // Get handles for the views from `dialogFragment`.
871 RadioButton currentFolderIconRadioButton = dialog.findViewById(R.id.edit_folder_current_icon_radiobutton);
872 RadioButton defaultFolderIconRadioButton = dialog.findViewById(R.id.edit_folder_default_icon_radiobutton);
873 ImageView defaultFolderIconImageView = dialog.findViewById(R.id.edit_folder_default_icon_imageview);
874 EditText editFolderNameEditText = dialog.findViewById(R.id.edit_folder_name_edittext);
876 // Get the new folder name.
877 String newFolderNameString = editFolderNameEditText.getText().toString();
879 // Check if the favorite icon has changed.
880 if (currentFolderIconRadioButton.isChecked()) { // Only the name has changed.
881 // Update the name in the database.
882 bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString);
883 } else if (!currentFolderIconRadioButton.isChecked() && newFolderNameString.equals(oldFolderNameString)) { // Only the icon has changed.
884 // Create the new folder icon Bitmap.
885 Bitmap folderIconBitmap;
887 // Populate the new folder icon bitmap.
888 if (defaultFolderIconRadioButton.isChecked()) {
889 // Get the default folder icon drawable.
890 Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
892 // Convert the folder icon drawable to a bitmap drawable.
893 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
895 // Convert the folder icon bitmap drawable to a bitmap.
896 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
897 } else { // Use the WebView favorite icon.
898 // Copy the favorite icon bitmap to the folder icon bitmap.
899 folderIconBitmap = favoriteIconBitmap;
902 // Create a folder icon byte array output stream.
903 ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
905 // Convert the folder icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
906 folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
908 // Convert the folder icon byte array stream to a byte array.
909 byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
911 // Update the folder icon in the database.
912 bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, newFolderIconByteArray);
913 } else { // The folder icon and the name have changed.
914 // Instantiate the new folder icon `Bitmap`.
915 Bitmap folderIconBitmap;
917 // Populate the new folder icon bitmap.
918 if (defaultFolderIconRadioButton.isChecked()) {
919 // Get the default folder icon drawable.
920 Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
922 // Convert the folder icon drawable to a bitmap drawable.
923 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
925 // Convert the folder icon bitmap drawable to a bitmap.
926 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
927 } else { // Use the WebView favorite icon.
928 // Copy the favorite icon bitmap to the folder icon bitmap.
929 folderIconBitmap = favoriteIconBitmap;
932 // Create a folder icon byte array output stream.
933 ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
935 // Convert the folder icon bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
936 folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
938 // Convert the folder icon byte array stream to a byte array.
939 byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
941 // Update the folder name and icon in the database.
942 bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString, newFolderIconByteArray);
945 // Update the bookmarks cursor with the current contents of this folder.
946 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
948 // Update the `ListView`.
949 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
951 // Close the contextual action mode.
952 contextualActionMode.finish();
956 public void onMoveToFolder(DialogFragment dialogFragment) {
957 // Get the dialog from the dialog fragment.
958 Dialog dialog = dialogFragment.getDialog();
960 // Remove the incorrect lint warning below that the dialog might be null.
961 assert dialog != null;
963 // Get a handle for the list view from the dialog.
964 ListView folderListView = dialog.findViewById(R.id.move_to_folder_listview);
966 // Store a long array of the selected folders.
967 long[] newFolderLongArray = folderListView.getCheckedItemIds();
969 // Get the new folder database ID. Only one folder will be selected.
970 int newFolderDatabaseId = (int) newFolderLongArray[0];
972 // Instantiate `newFolderName`.
973 String newFolderName;
975 // Set the new folder name.
976 if (newFolderDatabaseId == 0) {
977 // The new folder is the home folder, represented as `""` in the database.
980 // Get the new folder name from the database.
981 newFolderName = bookmarksDatabaseHelper.getFolderName(newFolderDatabaseId);
984 // Get a long array with the the database ID of the selected bookmarks.
985 long[] selectedBookmarksLongArray = bookmarksListView.getCheckedItemIds();
987 // Move each of the selected bookmarks to the new folder.
988 for (long databaseIdLong : selectedBookmarksLongArray) {
989 // Get `databaseIdInt` for each selected bookmark.
990 int databaseIdInt = (int) databaseIdLong;
992 // Move the selected bookmark to the new folder.
993 bookmarksDatabaseHelper.moveToFolder(databaseIdInt, newFolderName);
996 // Update the bookmarks cursor with the current contents of this folder.
997 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
999 // Update the `ListView`.
1000 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
1002 // Close the contextual app bar.
1003 contextualActionMode.finish();
1006 private void deleteBookmarkFolderContents(int databaseId) {
1007 // Get the name of the folder.
1008 String folderName = bookmarksDatabaseHelper.getFolderName(databaseId);
1010 // Get the contents of the folder.
1011 Cursor folderCursor = bookmarksDatabaseHelper.getBookmarkIDs(folderName);
1013 // Delete each of the bookmarks in the folder.
1014 for (int i = 0; i < folderCursor.getCount(); i++) {
1015 // Move `folderCursor` to the current row.
1016 folderCursor.moveToPosition(i);
1018 // Get the database ID of the item.
1019 int itemDatabaseId = folderCursor.getInt(folderCursor.getColumnIndex(BookmarksDatabaseHelper._ID));
1021 // If this is a folder, recursively delete the contents first.
1022 if (bookmarksDatabaseHelper.isFolder(itemDatabaseId)) {
1023 deleteBookmarkFolderContents(itemDatabaseId);
1026 // Delete the bookmark.
1027 bookmarksDatabaseHelper.deleteBookmark(itemDatabaseId);
1031 private void updateMoveIcons() {
1032 // Get a long array of the selected bookmarks.
1033 long[] selectedBookmarksLongArray = bookmarksListView.getCheckedItemIds();
1035 // Get the database IDs for the first, last, and selected bookmarks.
1036 int selectedBookmarkDatabaseId = (int) selectedBookmarksLongArray[0];
1037 int firstBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(0);
1038 // bookmarksListView is 0 indexed.
1039 int lastBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(bookmarksListView.getCount() - 1);
1041 // Get the current theme status.
1042 int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
1044 // Update the move bookmark up `MenuItem`.
1045 if (selectedBookmarkDatabaseId == firstBookmarkDatabaseId) { // The selected bookmark is in the first position.
1046 // Disable the move bookmark up `MenuItem`.
1047 moveBookmarkUpMenuItem.setEnabled(false);
1049 // Set the move bookmark up icon to be ghosted.
1050 moveBookmarkUpMenuItem.setIcon(R.drawable.move_up_disabled);
1051 } else { // The selected bookmark is not in the first position.
1052 // Enable the move bookmark up menu item.
1053 moveBookmarkUpMenuItem.setEnabled(true);
1055 // Set the icon according to the theme.
1056 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_YES) {
1057 moveBookmarkUpMenuItem.setIcon(R.drawable.move_up_enabled_night);
1059 moveBookmarkUpMenuItem.setIcon(R.drawable.move_up_enabled_day);
1063 // Update the move bookmark down `MenuItem`.
1064 if (selectedBookmarkDatabaseId == lastBookmarkDatabaseId) { // The selected bookmark is in the last position.
1065 // Disable the move bookmark down `MenuItem`.
1066 moveBookmarkDownMenuItem.setEnabled(false);
1068 // Set the move bookmark down icon to be ghosted.
1069 moveBookmarkDownMenuItem.setIcon(R.drawable.move_down_disabled);
1070 } else { // The selected bookmark is not in the last position.
1071 // Enable the move bookmark down `MenuItem`.
1072 moveBookmarkDownMenuItem.setEnabled(true);
1074 // Set the icon according to the theme.
1075 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_YES) {
1076 moveBookmarkDownMenuItem.setIcon(R.drawable.move_down_enabled_night);
1078 moveBookmarkDownMenuItem.setIcon(R.drawable.move_down_enabled_day);
1083 private void scrollBookmarks(int selectedBookmarkPosition) {
1084 // Get the first and last visible bookmark positions.
1085 int firstVisibleBookmarkPosition = bookmarksListView.getFirstVisiblePosition();
1086 int lastVisibleBookmarkPosition = bookmarksListView.getLastVisiblePosition();
1088 // Calculate the number of bookmarks per screen.
1089 int numberOfBookmarksPerScreen = lastVisibleBookmarkPosition - firstVisibleBookmarkPosition;
1091 // Scroll with the moved bookmark if necessary.
1092 if (selectedBookmarkPosition <= firstVisibleBookmarkPosition) { // The selected bookmark position is at or above the top of the screen.
1093 // Scroll to the selected bookmark position.
1094 bookmarksListView.setSelection(selectedBookmarkPosition);
1095 } else if (selectedBookmarkPosition >= (lastVisibleBookmarkPosition - 1)) { // The selected bookmark is at or below the bottom of the screen.
1096 // The `-1` handles partial bookmarks displayed at the bottom of the list view. This command scrolls to display the selected bookmark at the bottom of the screen.
1097 // `+1` assures that the entire bookmark will be displayed in situations where only a partial bookmark fits at the bottom of the list view.
1098 bookmarksListView.setSelection(selectedBookmarkPosition - numberOfBookmarksPerScreen + 1);
1102 private void loadFolder() {
1103 // Update bookmarks cursor with the contents of the bookmarks database for the current folder.
1104 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
1106 // Setup a `CursorAdapter`. `this` specifies the `Context`. `false` disables `autoRequery`.
1107 bookmarksCursorAdapter = new CursorAdapter(this, bookmarksCursor, false) {
1109 public View newView(Context context, Cursor cursor, ViewGroup parent) {
1110 // Inflate the individual item layout. `false` does not attach it to the root.
1111 return getLayoutInflater().inflate(R.layout.bookmarks_activity_item_linearlayout, parent, false);
1115 public void bindView(View view, Context context, Cursor cursor) {
1116 // Get handles for the views.
1117 ImageView bookmarkFavoriteIcon = view.findViewById(R.id.bookmark_favorite_icon);
1118 TextView bookmarkNameTextView = view.findViewById(R.id.bookmark_name);
1120 // Get the favorite icon byte array from the `Cursor`.
1121 byte[] favoriteIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
1123 // Convert the byte array to a `Bitmap` beginning at the first byte and ending at the last.
1124 Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
1126 // Display the bitmap in `bookmarkFavoriteIcon`.
1127 bookmarkFavoriteIcon.setImageBitmap(favoriteIconBitmap);
1129 // Get the bookmark name from the cursor and display it in `bookmarkNameTextView`.
1130 String bookmarkNameString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
1131 bookmarkNameTextView.setText(bookmarkNameString);
1133 // Make the font bold for folders.
1134 if (cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1) {
1135 bookmarkNameTextView.setTypeface(Typeface.DEFAULT_BOLD);
1136 } else { // Reset the font to default for normal bookmarks.
1137 bookmarkNameTextView.setTypeface(Typeface.DEFAULT);
1142 // Populate the list view with the adapter.
1143 bookmarksListView.setAdapter(bookmarksCursorAdapter);
1145 // Set the `AppBar` title.
1146 if (currentFolder.isEmpty()) {
1147 appBar.setTitle(R.string.bookmarks);
1149 appBar.setTitle(currentFolder);
1154 public void onDestroy() {
1155 // Close the bookmarks cursor and database.
1156 bookmarksCursor.close();
1157 bookmarksDatabaseHelper.close();
1159 // Run the default commands.