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.app.Activity;
23 import android.content.Context;
24 import android.content.Intent;
25 import android.database.Cursor;
26 import android.graphics.Bitmap;
27 import android.graphics.BitmapFactory;
28 import android.graphics.Typeface;
29 import android.graphics.drawable.BitmapDrawable;
30 import android.graphics.drawable.Drawable;
31 import android.os.Bundle;
32 import android.support.design.widget.FloatingActionButton;
33 import android.support.design.widget.Snackbar;
34 import android.support.v4.app.NavUtils;
35 import android.support.v7.app.ActionBar;
36 import android.support.v7.app.AppCompatActivity;
37 // `AppCompatDialogFragment` is required instead of `DialogFragment` or an error is produced on API <=22.
38 import android.support.v7.app.AppCompatDialogFragment;
39 import android.support.v7.widget.Toolbar;
40 import android.util.SparseBooleanArray;
41 import android.view.ActionMode;
42 import android.view.Menu;
43 import android.view.MenuItem;
44 import android.view.View;
45 import android.view.ViewGroup;
46 import android.view.WindowManager;
47 import android.widget.AbsListView;
48 import android.widget.CursorAdapter;
49 import android.widget.EditText;
50 import android.widget.ImageView;
51 import android.widget.ListView;
52 import android.widget.RadioButton;
53 import android.widget.TextView;
55 import com.stoutner.privacybrowser.dialogs.CreateBookmarkDialog;
56 import com.stoutner.privacybrowser.dialogs.CreateBookmarkFolderDialog;
57 import com.stoutner.privacybrowser.dialogs.EditBookmarkDialog;
58 import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDialog;
59 import com.stoutner.privacybrowser.dialogs.MoveToFolderDialog;
60 import com.stoutner.privacybrowser.R;
61 import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
63 import java.io.ByteArrayOutputStream;
65 public class BookmarksActivity extends AppCompatActivity implements CreateBookmarkDialog.CreateBookmarkListener, CreateBookmarkFolderDialog.CreateBookmarkFolderListener, EditBookmarkDialog.EditBookmarkListener,
66 EditBookmarkFolderDialog.EditBookmarkFolderListener, MoveToFolderDialog.MoveToFolderListener {
68 // `currentFolder` is public static so it can be accessed from `MoveToFolderDialog` and `BookmarksDatabaseViewActivity`.
69 // It is used in `onCreate`, `onOptionsItemSelected()`, `onBackPressed()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`,
70 // and `loadFolder()`.
71 public static String currentFolder;
73 // `checkedItemIds` is public static so it can be accessed from `MoveToFolderDialog`. It is also used in `onCreate()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`,
74 // and `updateMoveIcons()`.
75 public static long[] checkedItemIds;
77 // `restartFromBookmarksDatabaseViewActivity` is public static so it can be accessed from `BookmarksDatabaseViewActivity`. It is also used in `onRestart()`.
78 public static boolean restartFromBookmarksDatabaseViewActivity;
81 // `bookmarksDatabaseHelper` is used in `onCreate()`, `onOptionsItemSelected()`, `onBackPressed()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`,
82 // `onMoveToFolder()`, `deleteBookmarkFolderContents()`, `loadFolder()`, and `onDestroy()`.
83 private BookmarksDatabaseHelper bookmarksDatabaseHelper;
85 // `bookmarksListView` is used in `onCreate()`, `onOptionsItemSelected()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`,
86 // `updateMoveIcons()`, `scrollBookmarks()`, and `loadFolder()`.
87 private ListView bookmarksListView;
89 // `bookmarksCursor` is used in `onCreate()`, `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`, `deleteBookmarkFolderContents()`,
90 // `loadFolder()`, and `onDestroy()`.
91 private Cursor bookmarksCursor;
93 // `bookmarksCursorAdapter` is used in `onCreate(), `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`, `onMoveToFolder()`, and `onLoadFolder()`.
94 private CursorAdapter bookmarksCursorAdapter;
96 // `contextualActionMode` is used in `onCreate()`, `onSaveEditBookmark()`, `onSaveEditBookmarkFolder()` and `onMoveToFolder()`.
97 private ActionMode contextualActionMode;
99 // `appBar` is used in `onCreate()` and `loadFolder()`.
100 private ActionBar appBar;
102 // `oldFolderName` is used in `onCreate()` and `onSaveBookmarkFolder()`.
103 private String oldFolderNameString;
105 // `moveBookmarkUpMenuItem` is used in `onCreate()` and `updateMoveIcons()`.
106 private MenuItem moveBookmarkUpMenuItem;
108 // `moveBookmarkDownMenuItem` is used in `onCreate()` and `updateMoveIcons()`.
109 private MenuItem moveBookmarkDownMenuItem;
111 // `bookmarksDeletedSnackbar` is used in `onCreate()`, `onOptionsItemSelected()`, and `onBackPressed()`.
112 private Snackbar bookmarksDeletedSnackbar;
114 // `closeActivityAfterDismissingSnackbar` is used in `onCreate()`, `onOptionsItemSelected()`, and `onBackPressed()`.
115 private boolean closeActivityAfterDismissingSnackbar;
118 protected void onCreate(Bundle savedInstanceState) {
119 // Disable screenshots if not allowed.
120 if (!MainWebViewActivity.allowScreenshots) {
121 getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
124 // Set the activity theme.
125 if (MainWebViewActivity.darkTheme) {
126 setTheme(R.style.PrivacyBrowserDark_SecondaryActivity);
128 setTheme(R.style.PrivacyBrowserLight_SecondaryActivity);
131 // Run the default commands.
132 super.onCreate(savedInstanceState);
134 // Get the intent that launched the activity.
135 Intent launchingIntent = getIntent();
137 // Set the current folder variable.
138 if (launchingIntent.getStringExtra("Current Folder") != null) { // Set the current folder from the intent.
139 currentFolder = launchingIntent.getStringExtra("Current Folder");
140 } else { // Set the current folder to be `""`, which is the home folder.
144 // Set the content view.
145 setContentView(R.layout.bookmarks_coordinatorlayout);
147 // Use the `SupportActionBar` from `android.support.v7.app.ActionBar` until the minimum API is >= 21.
148 final Toolbar bookmarksAppBar = findViewById(R.id.bookmarks_toolbar);
149 setSupportActionBar(bookmarksAppBar);
151 // Get a handle for the activity, the app bar, and the ListView.
152 final Activity bookmarksActivity = this;
153 appBar = getSupportActionBar();
154 bookmarksListView = findViewById(R.id.bookmarks_listview);
156 // Remove the incorrect lint warning that `appBar` might be null.
157 assert appBar != null;
159 // Display the home arrow on the app bar.
160 appBar.setDisplayHomeAsUpEnabled(true);
162 // Initialize the database helper. `this` specifies the context. The two `nulls` do not specify the database name or a `CursorFactory`.
163 // The `0` specifies a database version, but that is ignored and set instead using a constant in `BookmarksDatabaseHelper`.
164 bookmarksDatabaseHelper = new BookmarksDatabaseHelper(this, null, null, 0);
166 // Load the home folder.
169 // Set a listener so that tapping a list item loads the URL or folder.
170 bookmarksListView.setOnItemClickListener((parent, view, position, id) -> {
171 // Convert the id from long to int to match the format of the bookmarks database.
172 int databaseID = (int) id;
174 // Get the bookmark cursor for this ID and move it to the first row.
175 Cursor bookmarkCursor = bookmarksDatabaseHelper.getBookmark(databaseID);
176 bookmarkCursor.moveToFirst();
178 // Act upon the bookmark according to the type.
179 if (bookmarkCursor.getInt(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1) { // The selected bookmark is a folder.
180 // Update the current folder.
181 currentFolder = bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
183 // Load the new folder.
185 } else { // The selected bookmark is not a folder.
186 // Get the bookmark URL and assign it to `formattedUrlString`.
187 MainWebViewActivity.formattedUrlString = bookmarkCursor.getString(bookmarkCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL));
189 // Set `MainWebViewActivity` to load the new URL on restart.
190 MainWebViewActivity.loadUrlOnRestart = true;
192 // Update the bookmarks folder for the bookmarks drawer in `MainWebViewActivity`.
193 MainWebViewActivity.currentBookmarksFolder = currentFolder;
195 // Close the bookmarks drawer and reload the bookmarks `ListView` when returning to `MainWebViewActivity`.
196 MainWebViewActivity.restartFromBookmarksActivity = true;
198 // Return to `MainWebViewActivity`.
199 NavUtils.navigateUpFromSameTask(bookmarksActivity);
202 // Close the `Cursor`.
203 bookmarkCursor.close();
206 // Handle long presses on the list view.
207 bookmarksListView.setMultiChoiceModeListener(new AbsListView.MultiChoiceModeListener() {
208 // Instantiate the common variables.
209 MenuItem editBookmarkMenuItem;
210 MenuItem deleteBookmarksMenuItem;
211 MenuItem selectAllBookmarksMenuItem;
212 boolean deletingBookmarks;
215 public boolean onCreateActionMode(ActionMode mode, Menu menu) {
216 // Inflate the menu for the contextual app bar.
217 getMenuInflater().inflate(R.menu.bookmarks_context_menu, menu);
220 if (currentFolder.isEmpty()) { // Use `R.string.bookmarks` if in the home folder.
221 mode.setTitle(R.string.bookmarks);
222 } else { // Use the current folder name as the title.
223 mode.setTitle(currentFolder);
226 // Get handles for menu items that need to be selectively disabled.
227 moveBookmarkUpMenuItem = menu.findItem(R.id.move_bookmark_up);
228 moveBookmarkDownMenuItem = menu.findItem(R.id.move_bookmark_down);
229 editBookmarkMenuItem = menu.findItem(R.id.edit_bookmark);
230 deleteBookmarksMenuItem = menu.findItem(R.id.delete_bookmark);
231 selectAllBookmarksMenuItem = menu.findItem(R.id.context_menu_select_all_bookmarks);
233 // Disable the delete bookmarks menu item if a delete is pending.
234 deleteBookmarksMenuItem.setEnabled(!deletingBookmarks);
236 // Store a handle for the contextual action mode so it can be closed programatically.
237 contextualActionMode = mode;
244 public boolean onPrepareActionMode(ActionMode mode, Menu menu) {
245 // Get a handle for the move to folder menu item.
246 MenuItem moveToFolderMenuItem = menu.findItem(R.id.move_to_folder);
248 // Get a Cursor with all of the folders.
249 Cursor folderCursor = bookmarksDatabaseHelper.getAllFolders();
251 // Enable the move to folder menu item if at least one folder exists.
252 moveToFolderMenuItem.setVisible(folderCursor.getCount() > 0);
259 public void onItemCheckedStateChanged(ActionMode mode, int position, long id, boolean checked) {
260 // Get the number of selected bookmarks.
261 int numberOfSelectedBookmarks = bookmarksListView.getCheckedItemCount();
263 // Adjust the ActionMode and the menu according to the number of selected bookmarks.
264 if (numberOfSelectedBookmarks == 1) { // One bookmark is selected.
265 // List the number of selected bookmarks in the subtitle.
266 mode.setSubtitle(getString(R.string.selected) + " 1");
268 // Show the `Move Up`, `Move Down`, and `Edit` options.
269 moveBookmarkUpMenuItem.setVisible(true);
270 moveBookmarkDownMenuItem.setVisible(true);
271 editBookmarkMenuItem.setVisible(true);
273 // Update the enabled status of the move icons.
275 } else { // More than one bookmark is selected.
276 // List the number of selected bookmarks in the subtitle.
277 mode.setSubtitle(getString(R.string.selected) + " " + numberOfSelectedBookmarks);
279 // Hide non-applicable `MenuItems`.
280 moveBookmarkUpMenuItem.setVisible(false);
281 moveBookmarkDownMenuItem.setVisible(false);
282 editBookmarkMenuItem.setVisible(false);
285 // Do not show the select all menu item if all the bookmarks are already checked.
286 if (bookmarksListView.getCheckedItemCount() == bookmarksListView.getCount()) {
287 selectAllBookmarksMenuItem.setVisible(false);
289 selectAllBookmarksMenuItem.setVisible(true);
294 public boolean onActionItemClicked(ActionMode mode, MenuItem item) {
295 // Instantiate the common variables.
296 int selectedBookmarkPosition;
297 int selectedBookmarkNewPosition;
298 final SparseBooleanArray selectedBookmarksPositionsSparseBooleanArray;
300 switch (item.getItemId()) {
301 case R.id.move_bookmark_up:
302 // Get the array of checked bookmark positions.
303 selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
305 // Store the position of the selected bookmark. Only one bookmark is selected when `move_bookmark_up` is enabled.
306 selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(0);
308 // Calculate the new position of the selected bookmark.
309 selectedBookmarkNewPosition = selectedBookmarkPosition - 1;
311 // Iterate through the bookmarks.
312 for (int i = 0; i < bookmarksListView.getCount(); i++) {
313 // Get the database ID for the current bookmark.
314 int currentBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(i);
316 // Update the display order for the current bookmark.
317 if (i == selectedBookmarkPosition) { // The current bookmark is the selected bookmark.
318 // Move the current bookmark up one.
319 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i - 1);
320 } else if ((i + 1) == selectedBookmarkPosition){ // The current bookmark is immediately above the selected bookmark.
321 // Move the current bookmark down one.
322 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i + 1);
323 } else { // The current bookmark is not changing positions.
324 // Move `bookmarksCursor` to the current bookmark position.
325 bookmarksCursor.moveToPosition(i);
327 // Update the display order only if it is not correct in the database.
328 if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i) {
329 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i);
334 // Update the bookmarks cursor with the current contents of the bookmarks database.
335 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
337 // Update the `ListView`.
338 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
340 // Scroll with the bookmark.
341 scrollBookmarks(selectedBookmarkNewPosition);
343 // Update the enabled status of the move icons.
347 case R.id.move_bookmark_down:
348 // Get the array of checked bookmark positions.
349 selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
351 // Store the position of the selected bookmark. Only one bookmark is selected when `move_bookmark_down` is enabled.
352 selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(0);
354 // Calculate the new position of the selected bookmark.
355 selectedBookmarkNewPosition = selectedBookmarkPosition + 1;
357 // Iterate through the bookmarks.
358 for (int i = 0; i <bookmarksListView.getCount(); i++) {
359 // Get the database ID for the current bookmark.
360 int currentBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(i);
362 // Update the display order for the current bookmark.
363 if (i == selectedBookmarkPosition) { // The current bookmark is the selected bookmark.
364 // Move the current bookmark down one.
365 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i + 1);
366 } else if ((i - 1) == selectedBookmarkPosition) { // The current bookmark is immediately below the selected bookmark.
367 // Move the bookmark below the selected bookmark up one.
368 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i - 1);
369 } else { // The current bookmark is not changing positions.
370 // Move `bookmarksCursor` to the current bookmark position.
371 bookmarksCursor.moveToPosition(i);
373 // Update the display order only if it is not correct in the database.
374 if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i) {
375 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i);
380 // Update the bookmarks cursor with the current contents of the bookmarks database.
381 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
383 // Update the `ListView`.
384 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
386 // Scroll with the bookmark.
387 scrollBookmarks(selectedBookmarkNewPosition);
389 // Update the enabled status of the move icons.
393 case R.id.move_to_folder:
394 // Store `checkedItemIds` for use by the `AlertDialog`.
395 checkedItemIds = bookmarksListView.getCheckedItemIds();
397 // Show the `MoveToFolderDialog` `AlertDialog` and name the instance `@string/move_to_folder
398 AppCompatDialogFragment moveToFolderDialog = new MoveToFolderDialog();
399 moveToFolderDialog.show(getSupportFragmentManager(), getResources().getString(R.string.move_to_folder));
402 case R.id.edit_bookmark:
403 // Get the array of checked bookmark positions.
404 selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions();
406 // Get the position of the selected bookmark. Only one bookmark is selected when `edit_bookmark_down` is enabled.
407 selectedBookmarkPosition = selectedBookmarksPositionsSparseBooleanArray.keyAt(0);
409 // Move the `Cursor` to the selected position and find out if it is a folder.
410 bookmarksCursor.moveToPosition(selectedBookmarkPosition);
411 boolean isFolder = (bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1);
413 // Get the selected bookmark database ID.
414 int databaseId = bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper._ID));
416 // Show the edit bookmark or edit bookmark folder dialog.
418 // Save the current folder name, which is used in `onSaveBookmarkFolder()`.
419 oldFolderNameString = bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
421 // Show the edit bookmark folder dialog.
422 AppCompatDialogFragment editFolderDialog = EditBookmarkFolderDialog.folderDatabaseId(databaseId);
423 editFolderDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_folder));
425 // Show the edit bookmark dialog.
426 AppCompatDialogFragment editBookmarkDialog = EditBookmarkDialog.bookmarkDatabaseId(databaseId);
427 editBookmarkDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_bookmark));
431 case R.id.delete_bookmark:
432 // Set the deleting bookmarks flag, which prevents the delete menu item from being enabled until the current process finishes.
433 deletingBookmarks = true;
435 // Get an array of the selected row IDs.
436 final long[] selectedBookmarksIdsLongArray = bookmarksListView.getCheckedItemIds();
438 // 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.
439 selectedBookmarksPositionsSparseBooleanArray = bookmarksListView.getCheckedItemPositions().clone();
441 // Update the bookmarks cursor with the current contents of the bookmarks database except for the specified database IDs.
442 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrderExcept(selectedBookmarksIdsLongArray, currentFolder);
444 // Update the list view.
445 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
447 // Show a Snackbar with the number of deleted bookmarks.
448 bookmarksDeletedSnackbar = Snackbar.make(findViewById(R.id.bookmarks_coordinatorlayout), getString(R.string.bookmarks_deleted) + " " + selectedBookmarksIdsLongArray.length,
449 Snackbar.LENGTH_LONG)
450 .setAction(R.string.undo, view -> {
451 // Do nothing because everything will be handled by `onDismissed()` below.
453 .addCallback(new Snackbar.Callback() {
455 public void onDismissed(Snackbar snackbar, int event) {
457 // The user pushed the `Undo` button.
458 case Snackbar.Callback.DISMISS_EVENT_ACTION:
459 // Update the bookmarks cursor with the current contents of the bookmarks database, including the "deleted" bookmarks.
460 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
462 // Update the list view.
463 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
465 // Re-select the previously selected bookmarks.
466 for (int i = 0; i < selectedBookmarksPositionsSparseBooleanArray.size(); i++) {
467 bookmarksListView.setItemChecked(selectedBookmarksPositionsSparseBooleanArray.keyAt(i), true);
471 // The Snackbar was dismissed without the `Undo` button being pushed.
473 // Delete each selected bookmark.
474 for (long databaseIdLong : selectedBookmarksIdsLongArray) {
475 // Convert `databaseIdLong` to an int.
476 int databaseIdInt = (int) databaseIdLong;
478 // Delete the contents of the folder if the selected bookmark is a folder.
479 if (bookmarksDatabaseHelper.isFolder(databaseIdInt)) {
480 deleteBookmarkFolderContents(databaseIdInt);
483 // Delete the selected bookmark.
484 bookmarksDatabaseHelper.deleteBookmark(databaseIdInt);
487 // Update the display order.
488 for (int i = 0; i < bookmarksListView.getCount(); i++) {
489 // Get the database ID for the current bookmark.
490 int currentBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(i);
492 // Move `bookmarksCursor` to the current bookmark position.
493 bookmarksCursor.moveToPosition(i);
495 // Update the display order only if it is not correct in the database.
496 if (bookmarksCursor.getInt(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER)) != i) {
497 bookmarksDatabaseHelper.updateDisplayOrder(currentBookmarkDatabaseId, i);
502 // Reset the deleting bookmarks flag.
503 deletingBookmarks = false;
505 // Enable the delete bookmarks menu item.
506 deleteBookmarksMenuItem.setEnabled(true);
508 // Close the activity if back has been pressed.
509 if (closeActivityAfterDismissingSnackbar) {
516 bookmarksDeletedSnackbar.show();
519 case R.id.context_menu_select_all_bookmarks:
520 // Get the total number of bookmarks.
521 int numberOfBookmarks = bookmarksListView.getCount();
524 for (int i = 0; i < numberOfBookmarks; i++) {
525 bookmarksListView.setItemChecked(i, true);
530 // Consume the click.
535 public void onDestroyActionMode(ActionMode mode) {
540 // Get handles for the `FloatingActionButtons`.
541 FloatingActionButton createBookmarkFolderFab = findViewById(R.id.create_bookmark_folder_fab);
542 FloatingActionButton createBookmarkFab = findViewById(R.id.create_bookmark_fab);
544 // Set the create new bookmark folder FAB to display the `AlertDialog`.
545 createBookmarkFolderFab.setOnClickListener(v -> {
546 // Show the `CreateBookmarkFolderDialog` `AlertDialog` and name the instance `@string/create_folder`.
547 AppCompatDialogFragment createBookmarkFolderDialog = new CreateBookmarkFolderDialog();
548 createBookmarkFolderDialog.show(getSupportFragmentManager(), getResources().getString(R.string.create_folder));
551 // Set the create new bookmark FAB to display the `AlertDialog`.
552 createBookmarkFab.setOnClickListener(view -> {
553 // Show the `CreateBookmarkDialog` `AlertDialog` and name the instance `@string/create_bookmark`.
554 AppCompatDialogFragment createBookmarkDialog = new CreateBookmarkDialog();
555 createBookmarkDialog.show(getSupportFragmentManager(), getResources().getString(R.string.create_bookmark));
560 public void onRestart() {
561 // Run the default commands.
564 // Update the list view if returning from the bookmarks database view activity.
565 if (restartFromBookmarksDatabaseViewActivity) {
566 // Load the current folder in the list view.
569 // Reset `restartFromBookmarksDatabaseViewActivity`.
570 restartFromBookmarksDatabaseViewActivity = false;
575 public boolean onCreateOptionsMenu(Menu menu) {
577 getMenuInflater().inflate(R.menu.bookmarks_options_menu, menu);
584 public boolean onOptionsItemSelected(MenuItem menuItem) {
585 switch (menuItem.getItemId()) {
586 case android.R.id.home: // The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
587 if (currentFolder.isEmpty()) { // Currently in the home folder.
588 // Run the back commands.
590 } else { // Currently in a subfolder.
591 // Place the former parent folder in `currentFolder`.
592 currentFolder = bookmarksDatabaseHelper.getParentFolderName(currentFolder);
594 // Load the new folder.
599 case R.id.options_menu_select_all_bookmarks:
600 // Get the total number of bookmarks.
601 int numberOfBookmarks = bookmarksListView.getCount();
604 for (int i = 0; i < numberOfBookmarks; i++) {
605 bookmarksListView.setItemChecked(i, true);
609 case R.id.bookmarks_database_view:
610 // Launch `BookmarksDatabaseViewActivity`.
611 Intent bookmarksDatabaseViewIntent = new Intent(this, BookmarksDatabaseViewActivity.class);
612 startActivity(bookmarksDatabaseViewIntent);
619 public void onBackPressed() {
620 // 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.
621 if ((bookmarksDeletedSnackbar != null) && bookmarksDeletedSnackbar.isShown()) { // Close the bookmarks deleted snackbar before going home.
622 // Set the close flag.
623 closeActivityAfterDismissingSnackbar = true;
625 // Dismiss the snackbar.
626 bookmarksDeletedSnackbar.dismiss();
627 } else { // Go home immediately.
628 // Update the bookmarks folder for the bookmarks drawer in the main WebView activity.
629 MainWebViewActivity.currentBookmarksFolder = currentFolder;
631 // Close the bookmarks drawer and reload the bookmarks ListView when returning to the main WebView activity.
632 MainWebViewActivity.restartFromBookmarksActivity = true;
634 // Exit the bookmarks activity.
635 super.onBackPressed();
640 public void onCreateBookmark(AppCompatDialogFragment dialogFragment) {
641 // Get the `EditTexts` from the `dialogFragment`.
642 EditText createBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.create_bookmark_name_edittext);
643 EditText createBookmarkUrlEditText = dialogFragment.getDialog().findViewById(R.id.create_bookmark_url_edittext);
645 // Extract the strings from the `EditTexts`.
646 String bookmarkNameString = createBookmarkNameEditText.getText().toString();
647 String bookmarkUrlString = createBookmarkUrlEditText.getText().toString();
649 // Convert the favoriteIcon Bitmap to a byte array. `0` is for lossless compression (the only option for a PNG).
650 ByteArrayOutputStream favoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
651 MainWebViewActivity.favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, favoriteIconByteArrayOutputStream);
652 byte[] favoriteIconByteArray = favoriteIconByteArrayOutputStream.toByteArray();
654 // Display the new bookmark below the current items in the (0 indexed) list.
655 int newBookmarkDisplayOrder = bookmarksListView.getCount();
657 // Create the bookmark.
658 bookmarksDatabaseHelper.createBookmark(bookmarkNameString, bookmarkUrlString, currentFolder, newBookmarkDisplayOrder, favoriteIconByteArray);
660 // Update the bookmarks cursor with the current contents of this folder.
661 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
663 // Update the `ListView`.
664 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
666 // Scroll to the new bookmark.
667 bookmarksListView.setSelection(newBookmarkDisplayOrder);
671 public void onCreateBookmarkFolder(AppCompatDialogFragment dialogFragment) {
672 // Get handles for the views in `dialogFragment`.
673 EditText createFolderNameEditText = dialogFragment.getDialog().findViewById(R.id.create_folder_name_edittext);
674 RadioButton defaultFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.create_folder_default_icon_radiobutton);
675 ImageView folderIconImageView = dialogFragment.getDialog().findViewById(R.id.create_folder_default_icon);
677 // Get new folder name string.
678 String folderNameString = createFolderNameEditText.getText().toString();
680 // Get the new folder icon bitmap.
681 Bitmap folderIconBitmap;
682 if (defaultFolderIconRadioButton.isChecked()) { // Use the default folder icon.
683 // Get the default folder icon and convert it to a bitmap.
684 Drawable folderIconDrawable = folderIconImageView.getDrawable();
685 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
686 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
687 } else { // Use the `WebView` favorite icon.
688 folderIconBitmap = MainWebViewActivity.favoriteIconBitmap;
691 // Convert `folderIconBitmap` to a byte array. `0` is for lossless compression (the only option for a PNG).
692 ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
693 folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
694 byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
696 // Move all the bookmarks down one in the display order.
697 for (int i = 0; i < bookmarksListView.getCount(); i++) {
698 int databaseId = (int) bookmarksListView.getItemIdAtPosition(i);
699 bookmarksDatabaseHelper.updateDisplayOrder(databaseId, i + 1);
702 // Create the folder, which will be placed at the top of the `ListView`.
703 bookmarksDatabaseHelper.createFolder(folderNameString, currentFolder, folderIconByteArray);
705 // Update the bookmarks cursor with the current contents of this folder.
706 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
708 // Update the `ListView`.
709 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
711 // Scroll to the new folder.
712 bookmarksListView.setSelection(0);
716 public void onSaveBookmark(AppCompatDialogFragment dialogFragment, int selectedBookmarkDatabaseId) {
717 // Get handles for the views from `dialogFragment`.
718 EditText editBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_name_edittext);
719 EditText editBookmarkUrlEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_url_edittext);
720 RadioButton currentBookmarkIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_current_icon_radiobutton);
722 // Store the bookmark strings.
723 String bookmarkNameString = editBookmarkNameEditText.getText().toString();
724 String bookmarkUrlString = editBookmarkUrlEditText.getText().toString();
726 // Update the bookmark.
727 if (currentBookmarkIconRadioButton.isChecked()) { // Update the bookmark without changing the favorite icon.
728 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString);
729 } else { // Update the bookmark using the `WebView` favorite icon.
730 // Convert the favorite icon to a byte array. `0` is for lossless compression (the only option for a PNG).
731 ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
732 MainWebViewActivity.favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
733 byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
735 // Update the bookmark and the favorite icon.
736 bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, newFavoriteIconByteArray);
739 // Close the contextual action mode.
740 contextualActionMode.finish();
742 // Update the bookmarks cursor with the contents of the current folder.
743 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
745 // Update the `ListView`.
746 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
750 public void onSaveBookmarkFolder(AppCompatDialogFragment dialogFragment, int selectedFolderDatabaseId) {
751 // Get handles for the views from `dialogFragment`.
752 RadioButton currentFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_current_icon_radiobutton);
753 RadioButton defaultFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_radiobutton);
754 ImageView defaultFolderIconImageView = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_imageview);
755 EditText editFolderNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_folder_name_edittext);
757 // Get the new folder name.
758 String newFolderNameString = editFolderNameEditText.getText().toString();
760 // Check if the favorite icon has changed.
761 if (currentFolderIconRadioButton.isChecked()) { // Only the name has changed.
762 // Update the name in the database.
763 bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString);
764 } else if (!currentFolderIconRadioButton.isChecked() && newFolderNameString.equals(oldFolderNameString)) { // Only the icon has changed.
765 // Get the new folder icon `Bitmap`.
766 Bitmap folderIconBitmap;
767 if (defaultFolderIconRadioButton.isChecked()) {
768 // Get the default folder icon and convert it to a `Bitmap`.
769 Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
770 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
771 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
772 } else { // Use the `WebView` favorite icon.
773 folderIconBitmap = MainWebViewActivity.favoriteIconBitmap;
776 // Convert the folder `Bitmap` to a byte array. `0` is for lossless compression (the only option for a PNG).
777 ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
778 folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
779 byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
781 // Update the folder icon in the database.
782 bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, folderIconByteArray);
783 } else { // The folder icon and the name have changed.
784 // Instantiate the new folder icon `Bitmap`.
785 Bitmap folderIconBitmap;
787 // Populate the new folder icon bitmap.
788 if (defaultFolderIconRadioButton.isChecked()) {
789 // Get the default folder icon and convert it to a `Bitmap`.
790 Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
791 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
792 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
793 } else { // Use the `WebView` favorite icon.
794 folderIconBitmap = MainWebViewActivity.favoriteIconBitmap;
797 // Convert the folder `Bitmap` to a byte array. `0` is for lossless compression (the only option for a PNG).
798 ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
799 folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
800 byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
802 // Update the folder name and icon in the database.
803 bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString, folderIconByteArray);
806 // Update the bookmarks cursor with the current contents of this folder.
807 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
809 // Update the `ListView`.
810 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
812 // Close the contextual action mode.
813 contextualActionMode.finish();
817 public void onMoveToFolder(AppCompatDialogFragment dialogFragment) {
818 // Get a handle for the `ListView` from `dialogFragment`.
819 ListView folderListView = dialogFragment.getDialog().findViewById(R.id.move_to_folder_listview);
821 // Store a long array of the selected folders.
822 long[] newFolderLongArray = folderListView.getCheckedItemIds();
824 // Get the new folder database ID. Only one folder will be selected.
825 int newFolderDatabaseId = (int) newFolderLongArray[0];
827 // Instantiate `newFolderName`.
828 String newFolderName;
830 // Set the new folder name.
831 if (newFolderDatabaseId == 0) {
832 // The new folder is the home folder, represented as `""` in the database.
835 // Get the new folder name from the database.
836 newFolderName = bookmarksDatabaseHelper.getFolderName(newFolderDatabaseId);
839 // Get a long array with the the database ID of the selected bookmarks.
840 long[] selectedBookmarksLongArray = bookmarksListView.getCheckedItemIds();
842 // Move each of the selected bookmarks to the new folder.
843 for (long databaseIdLong : selectedBookmarksLongArray) {
844 // Get `databaseIdInt` for each selected bookmark.
845 int databaseIdInt = (int) databaseIdLong;
847 // Move the selected bookmark to the new folder.
848 bookmarksDatabaseHelper.moveToFolder(databaseIdInt, newFolderName);
851 // Update the bookmarks cursor with the current contents of this folder.
852 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
854 // Update the `ListView`.
855 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
857 // Close the contextual app bar.
858 contextualActionMode.finish();
861 private void deleteBookmarkFolderContents(int databaseId) {
862 // Get the name of the folder.
863 String folderName = bookmarksDatabaseHelper.getFolderName(databaseId);
865 // Get the contents of the folder.
866 Cursor folderCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(folderName);
868 // Delete each of the bookmarks in the folder.
869 for (int i = 0; i < folderCursor.getCount(); i++) {
870 // Move `folderCursor` to the current row.
871 folderCursor.moveToPosition(i);
873 // Get the database ID of the item.
874 int itemDatabaseId = folderCursor.getInt(folderCursor.getColumnIndex(BookmarksDatabaseHelper._ID));
876 // If this is a folder, recursively delete the contents first.
877 if (bookmarksDatabaseHelper.isFolder(itemDatabaseId)) {
878 deleteBookmarkFolderContents(itemDatabaseId);
881 // Delete the bookmark.
882 bookmarksDatabaseHelper.deleteBookmark(itemDatabaseId);
886 private void updateMoveIcons() {
887 // Get a long array of the selected bookmarks.
888 long[] selectedBookmarksLongArray = bookmarksListView.getCheckedItemIds();
890 // Get the database IDs for the first, last, and selected bookmarks.
891 int selectedBookmarkDatabaseId = (int) selectedBookmarksLongArray[0];
892 int firstBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(0);
893 // bookmarksListView is 0 indexed.
894 int lastBookmarkDatabaseId = (int) bookmarksListView.getItemIdAtPosition(bookmarksListView.getCount() - 1);
896 // Update the move bookmark up `MenuItem`.
897 if (selectedBookmarkDatabaseId == firstBookmarkDatabaseId) { // The selected bookmark is in the first position.
898 // Disable the move bookmark up `MenuItem`.
899 moveBookmarkUpMenuItem.setEnabled(false);
901 // Set the move bookmark up icon to be ghosted.
902 moveBookmarkUpMenuItem.setIcon(R.drawable.move_up_disabled);
903 } else { // The selected bookmark is not in the first position.
904 // Enable the move bookmark up `MenuItem`.
905 moveBookmarkUpMenuItem.setEnabled(true);
907 // Set the icon according to the theme.
908 if (MainWebViewActivity.darkTheme) {
909 moveBookmarkUpMenuItem.setIcon(R.drawable.move_up_enabled_dark);
911 moveBookmarkUpMenuItem.setIcon(R.drawable.move_up_enabled_light);
915 // Update the move bookmark down `MenuItem`.
916 if (selectedBookmarkDatabaseId == lastBookmarkDatabaseId) { // The selected bookmark is in the last position.
917 // Disable the move bookmark down `MenuItem`.
918 moveBookmarkDownMenuItem.setEnabled(false);
920 // Set the move bookmark down icon to be ghosted.
921 moveBookmarkDownMenuItem.setIcon(R.drawable.move_down_disabled);
922 } else { // The selected bookmark is not in the last position.
923 // Enable the move bookmark down `MenuItem`.
924 moveBookmarkDownMenuItem.setEnabled(true);
926 // Set the icon according to the theme.
927 if (MainWebViewActivity.darkTheme) {
928 moveBookmarkDownMenuItem.setIcon(R.drawable.move_down_enabled_dark);
930 moveBookmarkDownMenuItem.setIcon(R.drawable.move_down_enabled_light);
935 private void scrollBookmarks(int selectedBookmarkPosition) {
936 // Get the first and last visible bookmark positions.
937 int firstVisibleBookmarkPosition = bookmarksListView.getFirstVisiblePosition();
938 int lastVisibleBookmarkPosition = bookmarksListView.getLastVisiblePosition();
940 // Calculate the number of bookmarks per screen.
941 int numberOfBookmarksPerScreen = lastVisibleBookmarkPosition - firstVisibleBookmarkPosition;
943 // Scroll with the moved bookmark if necessary.
944 if (selectedBookmarkPosition <= firstVisibleBookmarkPosition) { // The selected bookmark position is at or above the top of the screen.
945 // Scroll to the selected bookmark position.
946 bookmarksListView.setSelection(selectedBookmarkPosition);
947 } else if (selectedBookmarkPosition >= (lastVisibleBookmarkPosition - 1)) { // The selected bookmark is at or below the bottom of the screen.
948 // 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.
949 // `+1` assures that the entire bookmark will be displayed in situations where only a partial bookmark fits at the bottom of the list view.
950 bookmarksListView.setSelection(selectedBookmarkPosition - numberOfBookmarksPerScreen + 1);
954 private void loadFolder() {
955 // Update bookmarks cursor with the contents of the bookmarks database for the current folder.
956 bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentFolder);
958 // Setup a `CursorAdapter`. `this` specifies the `Context`. `false` disables `autoRequery`.
959 bookmarksCursorAdapter = new CursorAdapter(this, bookmarksCursor, false) {
961 public View newView(Context context, Cursor cursor, ViewGroup parent) {
962 // Inflate the individual item layout. `false` does not attach it to the root.
963 return getLayoutInflater().inflate(R.layout.bookmarks_activity_item_linearlayout, parent, false);
967 public void bindView(View view, Context context, Cursor cursor) {
968 // Get handles for the views.
969 ImageView bookmarkFavoriteIcon = view.findViewById(R.id.bookmark_favorite_icon);
970 TextView bookmarkNameTextView = view.findViewById(R.id.bookmark_name);
972 // Get the favorite icon byte array from the `Cursor`.
973 byte[] favoriteIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
975 // Convert the byte array to a `Bitmap` beginning at the first byte and ending at the last.
976 Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
978 // Display the bitmap in `bookmarkFavoriteIcon`.
979 bookmarkFavoriteIcon.setImageBitmap(favoriteIconBitmap);
981 // Get the bookmark name from the cursor and display it in `bookmarkNameTextView`.
982 String bookmarkNameString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
983 bookmarkNameTextView.setText(bookmarkNameString);
985 // Make the font bold for folders.
986 if (cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1) {
987 bookmarkNameTextView.setTypeface(Typeface.DEFAULT_BOLD);
988 } else { // Reset the font to default for normal bookmarks.
989 bookmarkNameTextView.setTypeface(Typeface.DEFAULT);
994 // Populate the list view with the adapter.
995 bookmarksListView.setAdapter(bookmarksCursorAdapter);
997 // Set the `AppBar` title.
998 if (currentFolder.isEmpty()) {
999 appBar.setTitle(R.string.bookmarks);
1001 appBar.setTitle(currentFolder);
1006 public void onDestroy() {
1007 // Close the bookmarks cursor and database.
1008 bookmarksCursor.close();
1009 bookmarksDatabaseHelper.close();
1011 // Run the default commands.