2 * Copyright © 2016-2019 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.content.Context;
25 import android.content.Intent;
26 import android.database.Cursor;
27 import android.graphics.Bitmap;
28 import android.graphics.BitmapFactory;
29 import android.graphics.Typeface;
30 import android.graphics.drawable.BitmapDrawable;
31 import android.graphics.drawable.Drawable;
32 import android.os.Bundle;
33 import android.util.SparseBooleanArray;
34 import android.view.ActionMode;
35 import android.view.Menu;
36 import android.view.MenuItem;
37 import android.view.View;
38 import android.view.ViewGroup;
39 import android.view.WindowManager;
40 import android.widget.AbsListView;
41 import android.widget.CursorAdapter;
42 import android.widget.EditText;
43 import android.widget.ImageView;
44 import android.widget.ListView;
45 import android.widget.RadioButton;
46 import android.widget.TextView;
48 import androidx.appcompat.app.ActionBar;
49 import androidx.appcompat.app.AppCompatActivity;
50 import androidx.appcompat.widget.Toolbar; // The AndroidX toolbar must be used until the minimum API is >= 21.
51 import androidx.core.app.NavUtils;
52 import androidx.fragment.app.DialogFragment;
54 import com.google.android.material.floatingactionbutton.FloatingActionButton;
55 import com.google.android.material.snackbar.Snackbar;
57 import com.stoutner.privacybrowser.dialogs.CreateBookmarkDialog;
58 import com.stoutner.privacybrowser.dialogs.CreateBookmarkFolderDialog;
59 import com.stoutner.privacybrowser.dialogs.EditBookmarkDialog;
60 import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDialog;
61 import com.stoutner.privacybrowser.dialogs.MoveToFolderDialog;
62 import com.stoutner.privacybrowser.R;
63 import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
65 import java.io.ByteArrayOutputStream;
67 public class BookmarksActivity extends AppCompatActivity implements CreateBookmarkDialog.CreateBookmarkListener, CreateBookmarkFolderDialog.CreateBookmarkFolderListener, EditBookmarkDialog.EditBookmarkListener,
68 EditBookmarkFolderDialog.EditBookmarkFolderListener, MoveToFolderDialog.MoveToFolderListener {
70 // `currentFolder` is public static so it can be accessed from `MoveToFolderDialog` and `BookmarksDatabaseViewActivity`.
71 // It is used in `onCreate`, `onOptionsItemSelected()`, `onBackPressed()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`,
72 // and `loadFolder()`.
73 public static String currentFolder;
75 // `checkedItemIds` is public static so it can be accessed from `MoveToFolderDialog`. It is also used in `onCreate()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`,
76 // and `updateMoveIcons()`.
77 public static long[] checkedItemIds;
79 // `restartFromBookmarksDatabaseViewActivity` is public static so it can be accessed from `BookmarksDatabaseViewActivity`. It is also used in `onRestart()`.
80 public static boolean restartFromBookmarksDatabaseViewActivity;
83 // `bookmarksDatabaseHelper` is used in `onCreate()`, `onOptionsItemSelected()`, `onBackPressed()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`,
84 // `onMoveToFolder()`, `deleteBookmarkFolderContents()`, `loadFolder()`, and `onDestroy()`.
85 private BookmarksDatabaseHelper bookmarksDatabaseHelper;
87 // `bookmarksListView` is used in `onCreate()`, `onOptionsItemSelected()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`,
88 // `updateMoveIcons()`, `scrollBookmarks()`, and `loadFolder()`.
89 private ListView bookmarksListView;
91 // `bookmarksCursor` is used in `onCreate()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`, `deleteBookmarkFolderContents()`,
92 // `loadFolder()`, and `onDestroy()`.
93 private Cursor bookmarksCursor;
95 // `bookmarksCursorAdapter` is used in `onCreate(), `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`, and `onLoadFolder()`.
96 private CursorAdapter bookmarksCursorAdapter;
98 // `contextualActionMode` is used in `onCreate()`, `onSaveEditBookmark()`, `onSaveEditBookmarkFolder()` and `onMoveToFolder()`.
99 private ActionMode contextualActionMode;
101 // `appBar` is used in `onCreate()` and `loadFolder()`.
102 private ActionBar appBar;
104 // `oldFolderName` is used in `onCreate()` and `onSaveBookmarkFolder()`.
105 private String oldFolderNameString;
107 // `moveBookmarkUpMenuItem` is used in `onCreate()` and `updateMoveIcons()`.
108 private MenuItem moveBookmarkUpMenuItem;
110 // `moveBookmarkDownMenuItem` is used in `onCreate()` and `updateMoveIcons()`.
111 private MenuItem moveBookmarkDownMenuItem;
113 // `bookmarksDeletedSnackbar` is used in `onCreate()`, `onOptionsItemSelected()`, and `onBackPressed()`.
114 private Snackbar bookmarksDeletedSnackbar;
116 // `closeActivityAfterDismissingSnackbar` is used in `onCreate()`, `onOptionsItemSelected()`, and `onBackPressed()`.
117 private boolean closeActivityAfterDismissingSnackbar;
120 protected void onCreate(Bundle savedInstanceState) {
121 // Disable screenshots if not allowed.
122 if (!MainWebViewActivity.allowScreenshots) {
123 getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
126 // Set the activity theme.
127 if (MainWebViewActivity.darkTheme) {
128 setTheme(R.style.PrivacyBrowserDark_SecondaryActivity);
130 setTheme(R.style.PrivacyBrowserLight_SecondaryActivity);
133 // Run the default commands.
134 super.onCreate(savedInstanceState);
136 // Get the intent that launched the activity.
137 Intent launchingIntent = getIntent();
139 // Set the current folder variable.
140 if (launchingIntent.getStringExtra("Current Folder") != null) { // Set the current folder from the intent.
141 currentFolder = launchingIntent.getStringExtra("Current Folder");
142 } else { // Set the current folder to be `""`, which is the home folder.
146 // Set the content view.
147 setContentView(R.layout.bookmarks_coordinatorlayout);
149 // The AndroidX toolbar must be used until the minimum API is >= 21.
150 final Toolbar toolbar = findViewById(R.id.bookmarks_toolbar);
151 setSupportActionBar(toolbar);
153 // Get a handle for the activity, the app bar, and the ListView.
154 final Activity bookmarksActivity = this;
155 appBar = getSupportActionBar();
156 bookmarksListView = findViewById(R.id.bookmarks_listview);
158 // Remove the incorrect lint warning that `appBar` might be null.
159 assert appBar != null;
161 // Display the home arrow on the app bar.
162 appBar.setDisplayHomeAsUpEnabled(true);
164 // Initialize the database helper. `this` specifies the context. The two `nulls` do not specify the database name or a `CursorFactory`.
165 // The `0` specifies a database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
166 bookmarksDatabaseHelper = new BookmarksDatabaseHelper(this, null, null, 0);
168 // Load the home folder.
171 // Set a listener so that tapping a list item loads the URL or folder.
172 bookmarksListView.setOnItemClickListener((parent, view, position, id) -> {
173 // Convert the id from long to int to match the format of the bookmarks database.
174 int databaseID = (int) id;
176 // Get the bookmark cursor for this ID and move it to the first row.
177 Cursor bookmarkCursor = bookmarksDatabaseHelper.getBookmark(databaseID);
178 bookmarkCursor.moveToFirst();
180 // Act upon the bookmark according to the type.
181 if (bookmarkCursor.getInt(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1) { // The selected bookmark is a folder.
182 // Update the current folder.
183 currentFolder = bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
185 // Load the new folder.
187 } else { // The selected bookmark is not a folder.
188 // Get the bookmark URL and assign it to `formattedUrlString`.
189 MainWebViewActivity.formattedUrlString = bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL));
191 // Set `MainWebViewActivity` to load the new URL on restart.
192 MainWebViewActivity.loadUrlOnRestart = true;
194 // Update the bookmarks folder for the bookmarks drawer in `MainWebViewActivity`.
195 MainWebViewActivity.currentBookmarksFolder = currentFolder;
197 // Close the bookmarks drawer and reload the bookmarks `ListView` when returning to `MainWebViewActivity`.
198 MainWebViewActivity.restartFromBookmarksActivity = true;
200 // Return to `MainWebViewActivity`.
201 NavUtils.navigateUpFromSameTask(bookmarksActivity);
204 // Close the `Cursor`.
205 bookmarkCursor.close();
208 // Handle long presses on the list view.
209 bookmarksListView.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() {
210 // Instantiate the common variables.
211 MenuItem editBookmarkMenuItem;
212 MenuItem deleteBookmarksMenuItem;
213 MenuItem selectAllBookmarksMenuItem;
214 boolean deletingBookmarks;
217 public boolean onCreateActionMode(ActionMode mode, Menu menu) {
218 // Inflate the menu for the contextual app bar.
219 getMenuInflater().inflate(R.menu.bookmarks_context_menu, menu);
222 if (currentFolder.isEmpty()) { // Use `R.string.bookmarks` if in the home folder.
223 mode.setTitle(R.string.bookmarks);
224 } else { // Use the current folder name as the title.
225 mode.setTitle(currentFolder);
228 // Get handles for menu items that need to be selectively disabled.
229 moveBookmarkUpMenuItem = menu.findItem(R.id.move_bookmark_up);
230 moveBookmarkDownMenuItem = menu.findItem(R.id.move_bookmark_down);
231 editBookmarkMenuItem = menu.findItem(R.id.edit_bookmark);
232 deleteBookmarksMenuItem = menu.findItem(R.id.delete_bookmark);
233 selectAllBookmarksMenuItem = menu.findItem(R.id.context_menu_select_all_bookmarks);
235 // Disable the delete bookmarks menu item if a delete is pending.
236 deleteBookmarksMenuItem.setEnabled(!deletingBookmarks);
238 // Store a handle for the contextual action mode so it can be closed programatically.
239 contextualActionMode = mode;
246 public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
247 // Get a handle for the move to folder menu item.
248 MenuItem moveToFolderMenuItem = menu.findItem(R.id.move_to_folder);
250 // Get a Cursor with all of the folders.
251 Cursor folderCursor = bookmarksDatabaseHelper.getAllFolders();
253 // Enable the move to folder menu item if at least one folder exists.
254 moveToFolderMenuItem.setVisible(folderCursor.getCount() > 0);
261 public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) {
262 // Get the number of selected bookmarks.
263 int numberOfSelectedBookmarks = bookmarksListView.getCheckedItemCount();
265 // Adjust the ActionMode and the menu according to the number of selected bookmarks.
266 if (numberOfSelectedBookmarks == 1) { // One bookmark is selected.
267 // List the number of selected bookmarks in the subtitle.
268 mode.setSubtitle(getString(R.string.selected) + " 1");
270 // Show the `Move Up`, `Move Down`, and `Edit` options.
271 moveBookmarkUpMenuItem.setVisible(true);
272 moveBookmarkDownMenuItem.setVisible(true);
273 editBookmarkMenuItem.setVisible(true);
275 // Update the enabled status of the move icons.
277 } else { // More than one bookmark is selected.
278 // List the number of selected bookmarks in the subtitle.
279 mode.setSubtitle(getString(R.string.selected) + " " + numberOfSelectedBookmarks);
281 // Hide non-applicable `MenuItems`.
282 moveBookmarkUpMenuItem.setVisible(false);
283 moveBookmarkDownMenuItem.setVisible(false);
284 editBookmarkMenuItem.setVisible(false);
287 // Do not show the select all menu item if all the bookmarks are already checked.
288 if (bookmarksListView.getCheckedItemCount() == bookmarksListView.getCount()) {
289 selectAllBookmarksMenuItem.setVisible(false);
291 selectAllBookmarksMenuItem.setVisible(true);
296 public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
297 // Instantiate the common variables.
298 int selectedBookmarkPosition;
299 int selectedBookmarkNewPosition;
300 final SparseBooleanArray selectedBookmarksPositionsSparseBooleanArray;
302 switch (item.getItemId()) {
303 case R.id.move_bookmark_up:
304 // Get the array of checked bookmark positions.
305 selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
307 // Store the position of the selected bookmark. Only one bookmark is selected when `move_bookmark_up` is enabled.
308 selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(0);
310 // Calculate the new position of the selected bookmark.
311 selectedBookmarkNewPosition = selectedBookmarkPosition - 1;
313 // Iterate through the bookmarks.
314 for (int i = 0; i < bookmarksListView.getCount(); i++) {
315 // Get the database ID for the current bookmark.
316 int currentBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(i);
318 // Update the display order for the current bookmark.
319 if (i == selectedBookmarkPosition) { // The current bookmark is the selected bookmark.
320 // Move the current bookmark up one.
321 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i - 1);
322 } else if ((i + 1) == selectedBookmarkPosition){ // The current bookmark is immediately above the selected bookmark.
323 // Move the current bookmark down one.
324 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i + 1);
325 } else { // The current bookmark is not changing positions.
326 // Move `bookmarksCursor` to the current bookmark position.
327 bookmarksCursor.moveToPosition(i);
329 // Update the display order only if it is not correct in the database.
330 if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i) {
331 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i);
336 // Update the bookmarks cursor with the current contents of the bookmarks database.
337 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
339 // Update the `ListView`.
340 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
342 // Scroll with the bookmark.
343 scrollBookmarks(selectedBookmarkNewPosition);
345 // Update the enabled status of the move icons.
349 case R.id.move_bookmark_down:
350 // Get the array of checked bookmark positions.
351 selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
353 // Store the position of the selected bookmark. Only one bookmark is selected when `move_bookmark_down` is enabled.
354 selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(0);
356 // Calculate the new position of the selected bookmark.
357 selectedBookmarkNewPosition = selectedBookmarkPosition + 1;
359 // Iterate through the bookmarks.
360 for (int i = 0; i <bookmarksListView.getCount(); i++) {
361 // Get the database ID for the current bookmark.
362 int currentBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(i);
364 // Update the display order for the current bookmark.
365 if (i == selectedBookmarkPosition) { // The current bookmark is the selected bookmark.
366 // Move the current bookmark down one.
367 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i + 1);
368 } else if ((i - 1) == selectedBookmarkPosition) { // The current bookmark is immediately below the selected bookmark.
369 // Move the bookmark below the selected bookmark up one.
370 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i - 1);
371 } else { // The current bookmark is not changing positions.
372 // Move `bookmarksCursor` to the current bookmark position.
373 bookmarksCursor.moveToPosition(i);
375 // Update the display order only if it is not correct in the database.
376 if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i) {
377 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i);
382 // Update the bookmarks cursor with the current contents of the bookmarks database.
383 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
385 // Update the `ListView`.
386 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
388 // Scroll with the bookmark.
389 scrollBookmarks(selectedBookmarkNewPosition);
391 // Update the enabled status of the move icons.
395 case R.id.move_to_folder:
396 // Store `checkedItemIds` for use by the `AlertDialog`.
397 checkedItemIds = bookmarksListView.getCheckedItemIds();
399 // Show the `MoveToFolderDialog` `AlertDialog` and name the instance `@string/move_to_folder
400 DialogFragment moveToFolderDialog = new MoveToFolderDialog();
401 moveToFolderDialog.show(getSupportFragmentManager(), getResources().getString(R.string.move_to_folder));
404 case R.id.edit_bookmark:
405 // Get the array of checked bookmark positions.
406 selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
408 // Get the position of the selected bookmark. Only one bookmark is selected when `edit_bookmark_down` is enabled.
409 selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(0);
411 // Move the `Cursor` to the selected position and find out if it is a folder.
412 bookmarksCursor.moveToPosition(selectedBookmarkPosition);
413 boolean isFolder = (bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1);
415 // Get the selected bookmark database ID.
416 int databaseId = bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper._ID));
418 // Show the edit bookmark or edit bookmark folder dialog.
420 // Save the current folder name, which is used in `onSaveBookmarkFolder()`.
421 oldFolderNameString = bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
423 // Show the edit bookmark folder dialog.
424 DialogFragment editFolderDialog = EditBookmarkFolderDialog.folderDatabaseId(databaseId);
425 editFolderDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_folder));
427 // Show the edit bookmark dialog.
428 DialogFragment editBookmarkDialog = EditBookmarkDialog.bookmarkDatabaseId(databaseId);
429 editBookmarkDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_bookmark));
433 case R.id.delete_bookmark:
434 // Set the deleting bookmarks flag, which prevents the delete menu item from being enabled until the current process finishes.
435 deletingBookmarks = true;
437 // Get an array of the selected row IDs.
438 final long[] selectedBookmarksIdsLongArray = bookmarksListView.getCheckedItemIds();
440 // 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.
441 selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions().clone();
443 // Update the bookmarks cursor with the current contents of the bookmarks database except for the specified database IDs.
444 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, currentFolder);
446 // Update the list view.
447 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
449 // Show a Snackbar with the number of deleted bookmarks.
450 bookmarksDeletedSnackbar = Snackbar.make(findViewById(R.id.bookmarks_coordinatorlayout), getString(R.string.bookmarks_deleted) + " " + selectedBookmarksIdsLongArray.length,
451 Snackbar.LENGTH_LONG)
452 .setAction(R.string.undo, view -> {
453 // Do nothing because everything will be handled by `onDismissed()` below.
455 .addCallback(new Snackbar.Callback() {
456 @SuppressLint("SwitchIntDef") // Ignore the lint warning about not handling the other possible events as they are covered by `default:`.
458 public void onDismissed(Snackbar snackbar, int event) {
460 // The user pushed the `Undo` button.
461 case Snackbar.Callback.DISMISS_EVENT_ACTION:
462 // Update the bookmarks cursor with the current contents of the bookmarks database, including the "deleted" bookmarks.
463 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
465 // Update the list view.
466 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
468 // Re-select the previously selected bookmarks.
469 for (int i = 0; i < selectedBookmarksPositionsSparseBooleanArray.size(); i++) {
470 bookmarksListView.setItemChecked(selectedBookmarksPositionsSparseBooleanArray.keyAt(i), true);
474 // The Snackbar was dismissed without the `Undo` button being pushed.
476 // Delete each selected bookmark.
477 for (long databaseIdLong : selectedBookmarksIdsLongArray) {
478 // Convert `databaseIdLong` to an int.
479 int databaseIdInt = (int) databaseIdLong;
481 // Delete the contents of the folder if the selected bookmark is a folder.
482 if (bookmarksDatabaseHelper.isFolder(databaseIdInt)) {
483 deleteBookmarkFolderContents(databaseIdInt);
486 // Delete the selected bookmark.
487 bookmarksDatabaseHelper.deleteBookmark(databaseIdInt);
490 // Update the display order.
491 for (int i = 0; i < bookmarksListView.getCount(); i++) {
492 // Get the database ID for the current bookmark.
493 int currentBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(i);
495 // Move `bookmarksCursor` to the current bookmark position.
496 bookmarksCursor.moveToPosition(i);
498 // Update the display order only if it is not correct in the database.
499 if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i) {
500 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i);
505 // Reset the deleting bookmarks flag.
506 deletingBookmarks = false;
508 // Enable the delete bookmarks menu item.
509 deleteBookmarksMenuItem.setEnabled(true);
511 // Close the activity if back has been pressed.
512 if (closeActivityAfterDismissingSnackbar) {
519 bookmarksDeletedSnackbar.show();
522 case R.id.context_menu_select_all_bookmarks:
523 // Get the total number of bookmarks.
524 int numberOfBookmarks = bookmarksListView.getCount();
527 for (int i = 0; i < numberOfBookmarks; i++) {
528 bookmarksListView.setItemChecked(i, true);
533 // Consume the click.
538 public void onDestroyActionMode(ActionMode mode) {
543 // Get handles for the `FloatingActionButtons`.
544 FloatingActionButton createBookmarkFolderFab = findViewById(R.id.create_bookmark_folder_fab);
545 FloatingActionButton createBookmarkFab = findViewById(R.id.create_bookmark_fab);
547 // Set the create new bookmark folder FAB to display the `AlertDialog`.
548 createBookmarkFolderFab.setOnClickListener(v -> {
549 // Show the `CreateBookmarkFolderDialog` `AlertDialog` and name the instance `@string/create_folder`.
550 DialogFragment createBookmarkFolderDialog = new CreateBookmarkFolderDialog();
551 createBookmarkFolderDialog.show(getSupportFragmentManager(), getResources().getString(R.string.create_folder));
554 // Set the create new bookmark FAB to display the `AlertDialog`.
555 createBookmarkFab.setOnClickListener(view -> {
556 // Show the `CreateBookmarkDialog` `AlertDialog` and name the instance `@string/create_bookmark`.
557 DialogFragment createBookmarkDialog = new CreateBookmarkDialog();
558 createBookmarkDialog.show(getSupportFragmentManager(), getResources().getString(R.string.create_bookmark));
563 public void onRestart() {
564 // Run the default commands.
567 // Update the list view if returning from the bookmarks database view activity.
568 if (restartFromBookmarksDatabaseViewActivity) {
569 // Load the current folder in the list view.
572 // Reset `restartFromBookmarksDatabaseViewActivity`.
573 restartFromBookmarksDatabaseViewActivity = false;
578 public boolean onCreateOptionsMenu(Menu menu) {
580 getMenuInflater().inflate(R.menu.bookmarks_options_menu, menu);
587 public boolean onOptionsItemSelected(MenuItem menuItem) {
588 switch (menuItem.getItemId()) {
589 case android.R.id.home: // The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
590 if (currentFolder.isEmpty()) { // Currently in the home folder.
591 // Run the back commands.
593 } else { // Currently in a subfolder.
594 // Place the former parent folder in `currentFolder`.
595 currentFolder = bookmarksDatabaseHelper.getParentFolderName(currentFolder);
597 // Load the new folder.
602 case R.id.options_menu_select_all_bookmarks:
603 // Get the total number of bookmarks.
604 int numberOfBookmarks = bookmarksListView.getCount();
607 for (int i = 0; i < numberOfBookmarks; i++) {
608 bookmarksListView.setItemChecked(i, true);
612 case R.id.bookmarks_database_view:
613 // Launch `BookmarksDatabaseViewActivity`.
614 Intent bookmarksDatabaseViewIntent = new Intent(this, BookmarksDatabaseViewActivity.class);
615 startActivity(bookmarksDatabaseViewIntent);
622 public void onBackPressed() {
623 // 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.
624 if ((bookmarksDeletedSnackbar != null) && bookmarksDeletedSnackbar.isShown()) { // Close the bookmarks deleted snackbar before going home.
625 // Set the close flag.
626 closeActivityAfterDismissingSnackbar = true;
628 // Dismiss the snackbar.
629 bookmarksDeletedSnackbar.dismiss();
630 } else { // Go home immediately.
631 // Update the bookmarks folder for the bookmarks drawer in the main WebView activity.
632 MainWebViewActivity.currentBookmarksFolder = currentFolder;
634 // Close the bookmarks drawer and reload the bookmarks ListView when returning to the main WebView activity.
635 MainWebViewActivity.restartFromBookmarksActivity = true;
637 // Exit the bookmarks activity.
638 super.onBackPressed();
643 public void onCreateBookmark(DialogFragment dialogFragment) {
644 // Get the `EditTexts` from the `dialogFragment`.
645 EditText createBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.create_bookmark_name_edittext);
646 EditText createBookmarkUrlEditText = dialogFragment.getDialog().findViewById(R.id.create_bookmark_url_edittext);
648 // Extract the strings from the `EditTexts`.
649 String bookmarkNameString = createBookmarkNameEditText.getText().toString();
650 String bookmarkUrlString = createBookmarkUrlEditText.getText().toString();
652 // Convert the favoriteIcon Bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
653 ByteArrayOutputStream favoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
654 MainWebViewActivity.favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, favoriteIconByteArrayOutputStream);
655 byte[] favoriteIconByteArray = favoriteIconByteArrayOutputStream.toByteArray();
657 // Display the new bookmark below the current items in the (0 indexed) list.
658 int newBookmarkDisplayOrder = bookmarksListView.getCount();
660 // Create the bookmark.
661 bookmarksDatabaseHelper.createBookmark(bookmarkNameString, bookmarkUrlString, currentFolder, newBookmarkDisplayOrder, favoriteIconByteArray);
663 // Update the bookmarks cursor with the current contents of this folder.
664 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
666 // Update the `ListView`.
667 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
669 // Scroll to the new bookmark.
670 bookmarksListView.setSelection(newBookmarkDisplayOrder);
674 public void onCreateBookmarkFolder(DialogFragment dialogFragment) {
675 // Get handles for the views in `dialogFragment`.
676 EditText createFolderNameEditText = dialogFragment.getDialog().findViewById(R.id.create_folder_name_edittext);
677 RadioButton defaultFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.create_folder_default_icon_radiobutton);
678 ImageView folderIconImageView = dialogFragment.getDialog().findViewById(R.id.create_folder_default_icon);
680 // Get new folder name string.
681 String folderNameString = createFolderNameEditText.getText().toString();
683 // Get the new folder icon bitmap.
684 Bitmap folderIconBitmap;
685 if (defaultFolderIconRadioButton.isChecked()) { // Use the default folder icon.
686 // Get the default folder icon and convert it to a bitmap.
687 Drawable folderIconDrawable = folderIconImageView.getDrawable();
688 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
689 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
690 } else { // Use the `WebView` favorite icon.
691 folderIconBitmap = MainWebViewActivity.favoriteIconBitmap;
694 // Convert `folderIconBitmap` to a byte array. `0` is for lossless compression (the only option for a PNG).
695 ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
696 folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
697 byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
699 // Move all the bookmarks down one in the display order.
700 for (int i = 0; i < bookmarksListView.getCount(); i++) {
701 int databaseId = (int) bookmarksListView.getItemIdAtPosition(i);
702 bookmarksDatabaseHelper.updateDisplayOrder(databaseId, i + 1);
705 // Create the folder, which will be placed at the top of the `ListView`.
706 bookmarksDatabaseHelper.createFolder(folderNameString, currentFolder, folderIconByteArray);
708 // Update the bookmarks cursor with the current contents of this folder.
709 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
711 // Update the `ListView`.
712 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
714 // Scroll to the new folder.
715 bookmarksListView.setSelection(0);
719 public void onSaveBookmark(DialogFragment dialogFragment, int selectedBookmarkDatabaseId) {
720 // Get handles for the views from `dialogFragment`.
721 EditText editBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_name_edittext);
722 EditText editBookmarkUrlEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_url_edittext);
723 RadioButton currentBookmarkIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_current_icon_radiobutton);
725 // Store the bookmark strings.
726 String bookmarkNameString = editBookmarkNameEditText.getText().toString();
727 String bookmarkUrlString = editBookmarkUrlEditText.getText().toString();
729 // Update the bookmark.
730 if (currentBookmarkIconRadioButton.isChecked()) { // Update the bookmark without changing the favorite icon.
731 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString);
732 } else { // Update the bookmark using the `WebView` favorite icon.
733 // Convert the favorite icon to a byte array. `0` is for lossless compression (the only option for a PNG).
734 ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
735 MainWebViewActivity.favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
736 byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
738 // Update the bookmark and the favorite icon.
739 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, newFavoriteIconByteArray);
742 // Close the contextual action mode.
743 contextualActionMode.finish();
745 // Update the bookmarks cursor with the contents of the current folder.
746 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
748 // Update the `ListView`.
749 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
753 public void onSaveBookmarkFolder(DialogFragment dialogFragment, int selectedFolderDatabaseId) {
754 // Get handles for the views from `dialogFragment`.
755 RadioButton currentFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_current_icon_radiobutton);
756 RadioButton defaultFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_radiobutton);
757 ImageView defaultFolderIconImageView = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_imageview);
758 EditText editFolderNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_folder_name_edittext);
760 // Get the new folder name.
761 String newFolderNameString = editFolderNameEditText.getText().toString();
763 // Check if the favorite icon has changed.
764 if (currentFolderIconRadioButton.isChecked()) { // Only the name has changed.
765 // Update the name in the database.
766 bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString);
767 } else if (!currentFolderIconRadioButton.isChecked() && newFolderNameString.equals(oldFolderNameString)) { // Only the icon has changed.
768 // Get the new folder icon `Bitmap`.
769 Bitmap folderIconBitmap;
770 if (defaultFolderIconRadioButton.isChecked()) {
771 // Get the default folder icon and convert it to a `Bitmap`.
772 Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
773 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
774 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
775 } else { // Use the `WebView` favorite icon.
776 folderIconBitmap = MainWebViewActivity.favoriteIconBitmap;
779 // Convert the folder `Bitmap` to a byte array. `0` is for lossless compression (the only option for a PNG).
780 ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
781 folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
782 byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
784 // Update the folder icon in the database.
785 bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, folderIconByteArray);
786 } else { // The folder icon and the name have changed.
787 // Instantiate the new folder icon `Bitmap`.
788 Bitmap folderIconBitmap;
790 // Populate the new folder icon bitmap.
791 if (defaultFolderIconRadioButton.isChecked()) {
792 // Get the default folder icon and convert it to a `Bitmap`.
793 Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
794 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
795 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
796 } else { // Use the `WebView` favorite icon.
797 folderIconBitmap = MainWebViewActivity.favoriteIconBitmap;
800 // Convert the folder `Bitmap` to a byte array. `0` is for lossless compression (the only option for a PNG).
801 ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
802 folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
803 byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
805 // Update the folder name and icon in the database.
806 bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString, folderIconByteArray);
809 // Update the bookmarks cursor with the current contents of this folder.
810 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
812 // Update the `ListView`.
813 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
815 // Close the contextual action mode.
816 contextualActionMode.finish();
820 public void onMoveToFolder(DialogFragment dialogFragment) {
821 // Get a handle for the `ListView` from `dialogFragment`.
822 ListView folderListView = dialogFragment.getDialog().findViewById(R.id.move_to_folder_listview);
824 // Store a long array of the selected folders.
825 long[] newFolderLongArray = folderListView.getCheckedItemIds();
827 // Get the new folder database ID. Only one folder will be selected.
828 int newFolderDatabaseId = (int) newFolderLongArray[0];
830 // Instantiate `newFolderName`.
831 String newFolderName;
833 // Set the new folder name.
834 if (newFolderDatabaseId == 0) {
835 // The new folder is the home folder, represented as `""` in the database.
838 // Get the new folder name from the database.
839 newFolderName = bookmarksDatabaseHelper.getFolderName(newFolderDatabaseId);
842 // Get a long array with the the database ID of the selected bookmarks.
843 long[] selectedBookmarksLongArray = bookmarksListView.getCheckedItemIds();
845 // Move each of the selected bookmarks to the new folder.
846 for (long databaseIdLong : selectedBookmarksLongArray) {
847 // Get `databaseIdInt` for each selected bookmark.
848 int databaseIdInt = (int) databaseIdLong;
850 // Move the selected bookmark to the new folder.
851 bookmarksDatabaseHelper.moveToFolder(databaseIdInt, newFolderName);
854 // Update the bookmarks cursor with the current contents of this folder.
855 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
857 // Update the `ListView`.
858 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
860 // Close the contextual app bar.
861 contextualActionMode.finish();
864 private void deleteBookmarkFolderContents(int databaseId) {
865 // Get the name of the folder.
866 String folderName = bookmarksDatabaseHelper.getFolderName(databaseId);
868 // Get the contents of the folder.
869 Cursor folderCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(folderName);
871 // Delete each of the bookmarks in the folder.
872 for (int i = 0; i < folderCursor.getCount(); i++) {
873 // Move `folderCursor` to the current row.
874 folderCursor.moveToPosition(i);
876 // Get the database ID of the item.
877 int itemDatabaseId = folderCursor.getInt(folderCursor.getColumnIndex(BookmarksDatabaseHelper._ID));
879 // If this is a folder, recursively delete the contents first.
880 if (bookmarksDatabaseHelper.isFolder(itemDatabaseId)) {
881 deleteBookmarkFolderContents(itemDatabaseId);
884 // Delete the bookmark.
885 bookmarksDatabaseHelper.deleteBookmark(itemDatabaseId);
889 private void updateMoveIcons() {
890 // Get a long array of the selected bookmarks.
891 long[] selectedBookmarksLongArray = bookmarksListView.getCheckedItemIds();
893 // Get the database IDs for the first, last, and selected bookmarks.
894 int selectedBookmarkDatabaseId = (int) selectedBookmarksLongArray[0];
895 int firstBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(0);
896 // bookmarksListView is 0 indexed.
897 int lastBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(bookmarksListView.getCount() - 1);
899 // Update the move bookmark up `MenuItem`.
900 if (selectedBookmarkDatabaseId == firstBookmarkDatabaseId) { // The selected bookmark is in the first position.
901 // Disable the move bookmark up `MenuItem`.
902 moveBookmarkUpMenuItem.setEnabled(false);
904 // Set the move bookmark up icon to be ghosted.
905 moveBookmarkUpMenuItem.setIcon(R.drawable.move_up_disabled);
906 } else { // The selected bookmark is not in the first position.
907 // Enable the move bookmark up `MenuItem`.
908 moveBookmarkUpMenuItem.setEnabled(true);
910 // Set the icon according to the theme.
911 if (MainWebViewActivity.darkTheme) {
912 moveBookmarkUpMenuItem.setIcon(R.drawable.move_up_enabled_dark);
914 moveBookmarkUpMenuItem.setIcon(R.drawable.move_up_enabled_light);
918 // Update the move bookmark down `MenuItem`.
919 if (selectedBookmarkDatabaseId == lastBookmarkDatabaseId) { // The selected bookmark is in the last position.
920 // Disable the move bookmark down `MenuItem`.
921 moveBookmarkDownMenuItem.setEnabled(false);
923 // Set the move bookmark down icon to be ghosted.
924 moveBookmarkDownMenuItem.setIcon(R.drawable.move_down_disabled);
925 } else { // The selected bookmark is not in the last position.
926 // Enable the move bookmark down `MenuItem`.
927 moveBookmarkDownMenuItem.setEnabled(true);
929 // Set the icon according to the theme.
930 if (MainWebViewActivity.darkTheme) {
931 moveBookmarkDownMenuItem.setIcon(R.drawable.move_down_enabled_dark);
933 moveBookmarkDownMenuItem.setIcon(R.drawable.move_down_enabled_light);
938 private void scrollBookmarks(int selectedBookmarkPosition) {
939 // Get the first and last visible bookmark positions.
940 int firstVisibleBookmarkPosition = bookmarksListView.getFirstVisiblePosition();
941 int lastVisibleBookmarkPosition = bookmarksListView.getLastVisiblePosition();
943 // Calculate the number of bookmarks per screen.
944 int numberOfBookmarksPerScreen = lastVisibleBookmarkPosition - firstVisibleBookmarkPosition;
946 // Scroll with the moved bookmark if necessary.
947 if (selectedBookmarkPosition <= firstVisibleBookmarkPosition) { // The selected bookmark position is at or above the top of the screen.
948 // Scroll to the selected bookmark position.
949 bookmarksListView.setSelection(selectedBookmarkPosition);
950 } else if (selectedBookmarkPosition >= (lastVisibleBookmarkPosition - 1)) { // The selected bookmark is at or below the bottom of the screen.
951 // 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.
952 // `+1` assures that the entire bookmark will be displayed in situations where only a partial bookmark fits at the bottom of the list view.
953 bookmarksListView.setSelection(selectedBookmarkPosition - numberOfBookmarksPerScreen + 1);
957 private void loadFolder() {
958 // Update bookmarks cursor with the contents of the bookmarks database for the current folder.
959 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
961 // Setup a `CursorAdapter`. `this` specifies the `Context`. `false` disables `autoRequery`.
962 bookmarksCursorAdapter = new CursorAdapter(this, bookmarksCursor, false) {
964 public View newView(Context context, Cursor cursor, ViewGroup parent) {
965 // Inflate the individual item layout. `false` does not attach it to the root.
966 return getLayoutInflater().inflate(R.layout.bookmarks_activity_item_linearlayout, parent, false);
970 public void bindView(View view, Context context, Cursor cursor) {
971 // Get handles for the views.
972 ImageView bookmarkFavoriteIcon = view.findViewById(R.id.bookmark_favorite_icon);
973 TextView bookmarkNameTextView = view.findViewById(R.id.bookmark_name);
975 // Get the favorite icon byte array from the `Cursor`.
976 byte[] favoriteIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
978 // Convert the byte array to a `Bitmap` beginning at the first byte and ending at the last.
979 Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
981 // Display the bitmap in `bookmarkFavoriteIcon`.
982 bookmarkFavoriteIcon.setImageBitmap(favoriteIconBitmap);
984 // Get the bookmark name from the cursor and display it in `bookmarkNameTextView`.
985 String bookmarkNameString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
986 bookmarkNameTextView.setText(bookmarkNameString);
988 // Make the font bold for folders.
989 if (cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1) {
990 bookmarkNameTextView.setTypeface(Typeface.DEFAULT_BOLD);
991 } else { // Reset the font to default for normal bookmarks.
992 bookmarkNameTextView.setTypeface(Typeface.DEFAULT);
997 // Populate the list view with the adapter.
998 bookmarksListView.setAdapter(bookmarksCursorAdapter);
1000 // Set the `AppBar` title.
1001 if (currentFolder.isEmpty()) {
1002 appBar.setTitle(R.string.bookmarks);
1004 appBar.setTitle(currentFolder);
1009 public void onDestroy() {
1010 // Close the bookmarks cursor and database.
1011 bookmarksCursor.close();
1012 bookmarksDatabaseHelper.close();
1014 // Run the default commands.