Add a requests activity. https://redmine.stoutner.com/issues/170
[PrivacyBrowser.git] / app / src / main / java / com / stoutner / privacybrowser / activities / BookmarksDatabaseViewActivity.java
1 /*
2  * Copyright © 2016-2018 Soren Stoutner <soren@stoutner.com>.
3  *
4  * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
5  *
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.
10  *
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.
15  *
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/>.
18  */
19
20 package com.stoutner.privacybrowser.activities;
21
22 import android.content.Context;
23 import android.database.Cursor;
24 import android.database.MatrixCursor;
25 import android.database.MergeCursor;
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.v4.content.ContextCompat;
33 import android.support.v4.widget.CursorAdapter;
34 import android.support.v4.widget.ResourceCursorAdapter;
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.view.View;
41 import android.view.ViewGroup;
42 import android.view.WindowManager;
43 import android.widget.AdapterView;
44 import android.widget.EditText;
45 import android.widget.ImageView;
46 import android.widget.ListView;
47 import android.widget.RadioButton;
48 import android.widget.Spinner;
49 import android.widget.TextView;
50
51 import com.stoutner.privacybrowser.R;
52 import com.stoutner.privacybrowser.dialogs.EditBookmarkDatabaseViewDialog;
53 import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDatabaseViewDialog;
54 import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
55
56 import java.io.ByteArrayOutputStream;
57
58 public class BookmarksDatabaseViewActivity extends AppCompatActivity implements EditBookmarkDatabaseViewDialog.EditBookmarkDatabaseViewListener, EditBookmarkFolderDatabaseViewDialog.EditBookmarkFolderDatabaseViewListener {
59     // Instantiate the constants.
60     private static final int ALL_FOLDERS_DATABASE_ID = -2;
61     private static final int HOME_FOLDER_DATABASE_ID = -1;
62
63     // `bookmarksDatabaseHelper` is used in `onCreate()` and `updateBookmarksListView()`.
64     private BookmarksDatabaseHelper bookmarksDatabaseHelper;
65
66     // `bookmarksCursor` is used in `onCreate()`, `updateBookmarksListView()`, `onSaveBookmark()`, and `onSaveBookmarkFolder()`.
67     private Cursor bookmarksCursor;
68
69     // `bookmarksCursorAdapter` is used in `onCreate()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`.
70     private CursorAdapter bookmarksCursorAdapter;
71
72     // `oldFolderNameString` is used in `onCreate()` and `onSaveBookmarkFolder()`.
73     private String oldFolderNameString;
74
75     // `currentFolderDatabaseId` is used in `onCreate()`, `onSaveBookmark()`, and `onSaveBookmarkFolder()`.
76     private int currentFolderDatabaseId;
77
78     // `currentFolder` is used in `onCreate()`, `onSaveBookmark()`, and `onSaveBookmarkFolder()`.
79     private String currentFolderName;
80
81     @Override
82     public void onCreate(Bundle savedInstanceState) {
83         // Disable screenshots if not allowed.
84         if (!MainWebViewActivity.allowScreenshots) {
85             getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
86         }
87
88         // Set the activity theme.
89         if (MainWebViewActivity.darkTheme) {
90             setTheme(R.style.PrivacyBrowserDark_SecondaryActivity);
91         } else {
92             setTheme(R.style.PrivacyBrowserLight_SecondaryActivity);
93         }
94
95         // Run the default commands.
96         super.onCreate(savedInstanceState);
97
98         // Set the content view.
99         setContentView(R.layout.bookmarks_databaseview_coordinatorlayout);
100
101         // The `SupportActionBar` from `android.support.v7.app.ActionBar` must be used until the minimum API is >= 21.
102         final Toolbar bookmarksDatabaseViewAppBar = findViewById(R.id.bookmarks_databaseview_toolbar);
103         setSupportActionBar(bookmarksDatabaseViewAppBar);
104
105         // Get a handle for the `AppBar`.
106         final ActionBar appBar = getSupportActionBar();
107
108         // Remove the incorrect warning in Android Studio that `appBar` might be null.
109         assert appBar != null;
110
111         // Display the spinner and the back arrow in the app bar.
112         appBar.setCustomView(R.layout.bookmarks_databaseview_spinner);
113         appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_HOME_AS_UP);
114
115         // Initialize the database handler.  `this` specifies the context.  The two `null`s do not specify the database name or a `CursorFactory`.  The `0` is to specify a database version, but that is set instead using a constant in `BookmarksDatabaseHelper`.
116         bookmarksDatabaseHelper = new BookmarksDatabaseHelper(this, null, null, 0);
117
118         // Setup a matrix cursor for "All Folders" and "Home Folder".
119         String[] matrixCursorColumnNames = {BookmarksDatabaseHelper._ID, BookmarksDatabaseHelper.BOOKMARK_NAME};
120         MatrixCursor matrixCursor = new MatrixCursor(matrixCursorColumnNames);
121         matrixCursor.addRow(new Object[]{ALL_FOLDERS_DATABASE_ID, getString(R.string.all_folders)});
122         matrixCursor.addRow(new Object[]{HOME_FOLDER_DATABASE_ID, getString(R.string.home_folder)});
123
124         // Get a `Cursor` with the list of all the folders.
125         Cursor foldersCursor = bookmarksDatabaseHelper.getAllFoldersCursor();
126
127         // Combine `matrixCursor` and `foldersCursor`.
128         MergeCursor foldersMergeCursor = new MergeCursor(new Cursor[]{matrixCursor, foldersCursor});
129
130         // Create a resource cursor adapter for the spinner.
131         ResourceCursorAdapter foldersCursorAdapter = new ResourceCursorAdapter(this, R.layout.bookmarks_databaseview_spinner_item, foldersMergeCursor, 0) {
132             @Override
133             public void bindView(View view, Context context, Cursor cursor) {
134                 // Get a handle for the spinner item text view.
135                 TextView spinnerItemTextView = view.findViewById(R.id.spinner_item_textview);
136
137                 // Set the text view to display the folder name.
138                 spinnerItemTextView.setText(cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
139             }
140         };
141
142         // Set the resource cursor adapter drop drown view resource.
143         foldersCursorAdapter.setDropDownViewResource(R.layout.bookmarks_databaseview_spinner_dropdown_item);
144
145         // Get a handle for the folder spinner and set the adapter.
146         Spinner folderSpinner = findViewById(R.id.bookmarks_databaseview_spinner);
147         folderSpinner.setAdapter(foldersCursorAdapter);
148
149         // Handle clicks on the spinner dropdown.
150         folderSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
151             @Override
152             public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
153                 // Convert the database ID to an `int`.
154                 int databaseId = (int) id;
155
156                 // Store the current folder database ID.
157                 currentFolderDatabaseId = databaseId;
158
159                 // Populate the bookmarks list view based on the spinner selection.
160                 switch (databaseId) {
161                     // Get a cursor with all the folders.
162                     case ALL_FOLDERS_DATABASE_ID:
163                         bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor();
164                         break;
165
166                     // Get a cursor for the home folder.
167                     case HOME_FOLDER_DATABASE_ID:
168                         bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor("");
169                         break;
170
171                     // Display the selected folder.
172                     default:
173                         // Get a handle for the selected view.
174                         TextView selectedFolderTextView = view.findViewById(R.id.spinner_item_textview);
175
176                         // Extract the name of the selected folder.
177                         String folderName = selectedFolderTextView.getText().toString();
178
179                         // Get a cursor for the selected folder.
180                         bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor(folderName);
181
182                         // Store the current folder name.
183                         currentFolderName = folderName;
184                 }
185
186                 // Update the list view.
187                 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
188             }
189
190             @Override
191             public void onNothingSelected(AdapterView<?> parent) {
192                 // Do nothing.
193             }
194         });
195
196         // Get a handle for the bookmarks `ListView`.
197         ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
198
199         // Get a `Cursor` with the current contents of the bookmarks database.
200         bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor();
201
202         // Setup a `CursorAdapter` with `this` context.  `false` disables autoRequery.
203         bookmarksCursorAdapter = new CursorAdapter(this, bookmarksCursor, false) {
204             @Override
205             public View newView(Context context, Cursor cursor, ViewGroup parent) {
206                 // Inflate the individual item layout.  `false` does not attach it to the root.
207                 return getLayoutInflater().inflate(R.layout.bookmarks_databaseview_item_linearlayout, parent, false);
208             }
209
210             @Override
211             public void bindView(View view, Context context, Cursor cursor) {
212                 boolean isFolder = (cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1);
213
214                 // Get the database ID from the `Cursor` and display it in `bookmarkDatabaseIdTextView`.
215                 int bookmarkDatabaseId = cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper._ID));
216                 TextView bookmarkDatabaseIdTextView = view.findViewById(R.id.bookmarks_databaseview_database_id);
217                 bookmarkDatabaseIdTextView.setText(String.valueOf(bookmarkDatabaseId));
218
219                 // Get the favorite icon byte array from the `Cursor`.
220                 byte[] favoriteIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
221                 // Convert the byte array to a `Bitmap` beginning at the beginning at the first byte and ending at the last.
222                 Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
223                 // Display the bitmap in `bookmarkFavoriteIcon`.
224                 ImageView bookmarkFavoriteIcon = view.findViewById(R.id.bookmarks_databaseview_favorite_icon);
225                 bookmarkFavoriteIcon.setImageBitmap(favoriteIconBitmap);
226
227                 // Get the bookmark name from the `Cursor` and display it in `bookmarkNameTextView`.
228                 String bookmarkNameString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
229                 TextView bookmarkNameTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_name);
230                 bookmarkNameTextView.setText(bookmarkNameString);
231
232                 // Make the font bold for folders.
233                 if (isFolder) {
234                     // The first argument is `null` prevent changing of the font.
235                     bookmarkNameTextView.setTypeface(null, Typeface.BOLD);
236                 } else {  // Reset the font to default.
237                     bookmarkNameTextView.setTypeface(Typeface.DEFAULT);
238                 }
239
240                 // Get the bookmark URL form the `Cursor` and display it in `bookmarkUrlTextView`.
241                 String bookmarkUrlString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL));
242                 TextView bookmarkUrlTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_url);
243                 bookmarkUrlTextView.setText(bookmarkUrlString);
244
245                 // Hide the URL if the bookmark is a folder.
246                 if (isFolder) {
247                     bookmarkUrlTextView.setVisibility(View.GONE);
248                 } else {
249                     bookmarkUrlTextView.setVisibility(View.VISIBLE);
250                 }
251
252                 // Get the display order from the `Cursor` and display it in `bookmarkDisplayOrderTextView`.
253                 int bookmarkDisplayOrder = cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER));
254                 TextView bookmarkDisplayOrderTextView = view.findViewById(R.id.bookmarks_databaseview_display_order);
255                 bookmarkDisplayOrderTextView.setText(String.valueOf(bookmarkDisplayOrder));
256
257                 // Get the parent folder from the `Cursor` and display it in `bookmarkParentFolder`.
258                 String bookmarkParentFolder = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER));
259                 ImageView parentFolderImageView = view.findViewById(R.id.bookmarks_databaseview_parent_folder_icon);
260                 TextView bookmarkParentFolderTextView = view.findViewById(R.id.bookmarks_databaseview_parent_folder);
261
262                 // Make the folder name gray if it is the home folder.
263                 if (bookmarkParentFolder.isEmpty()) {
264                     parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_gray));
265                     bookmarkParentFolderTextView.setText(R.string.home_folder);
266                     bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_500));
267                 } else {
268                     parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_dark_blue));
269                     bookmarkParentFolderTextView.setText(bookmarkParentFolder);
270
271                     // Set the text color according to the theme.
272                     if (MainWebViewActivity.darkTheme) {
273                         bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_300));
274                     } else {
275                         bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.black));
276                     }
277                 }
278             }
279         };
280
281         // Update the ListView.
282         bookmarksListView.setAdapter(bookmarksCursorAdapter);
283
284         // Set the current folder database ID.
285         currentFolderDatabaseId = ALL_FOLDERS_DATABASE_ID;
286
287         // Set a listener to edit a bookmark when it is tapped.
288         bookmarksListView.setOnItemClickListener((AdapterView<?> parent, View view, int position, long id) -> {
289             // Convert the database ID to an `int`.
290             int databaseId = (int) id;
291
292             // Show the edit bookmark or edit bookmark folder dialog.
293             if (bookmarksDatabaseHelper.isFolder(databaseId)) {
294                 // Save the current folder name, which is used in `onSaveBookmarkFolder()`.
295                 oldFolderNameString = bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
296
297                 // Show the edit bookmark folder dialog.
298                 AppCompatDialogFragment editBookmarkFolderDatabaseViewDialog = EditBookmarkFolderDatabaseViewDialog.folderDatabaseId(databaseId);
299                 editBookmarkFolderDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_folder));
300             } else {
301                 // Show the edit bookmark dialog.
302                 AppCompatDialogFragment editBookmarkDatabaseViewDialog = EditBookmarkDatabaseViewDialog.bookmarkDatabaseId(databaseId);
303                 editBookmarkDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_bookmark));
304             }
305         });
306     }
307
308     @Override
309     public void onSaveBookmark(AppCompatDialogFragment dialogFragment, int selectedBookmarkDatabaseId) {
310         // Get handles for the views from dialog fragment.
311         RadioButton currentBookmarkIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_current_icon_radiobutton);
312         EditText editBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_name_edittext);
313         EditText editBookmarkUrlEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_url_edittext);
314         Spinner folderSpinner = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_folder_spinner);
315         EditText displayOrderEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_display_order_edittext);
316
317         // Extract the bookmark information.
318         String bookmarkNameString = editBookmarkNameEditText.getText().toString();
319         String bookmarkUrlString = editBookmarkUrlEditText.getText().toString();
320         int folderDatabaseId = (int) folderSpinner.getSelectedItemId();
321         int displayOrderInt = Integer.valueOf(displayOrderEditText.getText().toString());
322
323         // Instantiate the parent folder name `String`.
324         String parentFolderNameString;
325
326         // Set the parent folder name.
327         if (folderDatabaseId == EditBookmarkDatabaseViewDialog.HOME_FOLDER_DATABASE_ID) {  // The home folder is selected.  Use `""`.
328             parentFolderNameString = "";
329         } else {  // Get the parent folder name from the database.
330             parentFolderNameString = bookmarksDatabaseHelper.getFolderName(folderDatabaseId);
331         }
332
333         // Update the bookmark.
334         if (currentBookmarkIconRadioButton.isChecked()) {  // Update the bookmark without changing the favorite icon.
335             bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt);
336         } else {  // Update the bookmark using the `WebView` favorite icon.
337             // Convert the favorite icon to a byte array.  `0` is for lossless compression (the only option for a PNG).
338             ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
339             MainWebViewActivity.favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
340             byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
341
342             //  Update the bookmark and the favorite icon.
343             bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt, newFavoriteIconByteArray);
344         }
345
346         // Update `bookmarksCursor` with the contents of the current folder.
347         switch (currentFolderDatabaseId) {
348             case ALL_FOLDERS_DATABASE_ID:
349                 // Get a cursor with all the bookmarks.
350                 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor();
351                 break;
352
353             case HOME_FOLDER_DATABASE_ID:
354                 // Get a cursor with all the bookmarks in the home folder.
355                 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor("");
356                 break;
357
358             default:
359                 // Get a cursor with all the bookmarks in the current folder.
360                 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor(currentFolderName);
361         }
362
363         // Update the `ListView`.
364         bookmarksCursorAdapter.changeCursor(bookmarksCursor);
365     }
366
367     @Override
368     public void onSaveBookmarkFolder(AppCompatDialogFragment dialogFragment, int selectedBookmarkDatabaseId) {
369         // Get handles for the views from dialog fragment.
370         RadioButton currentBookmarkIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_current_icon_radiobutton);
371         RadioButton defaultFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_radiobutton);
372         ImageView defaultFolderIconImageView = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_imageview);
373         EditText editBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_folder_name_edittext);
374         Spinner parentFolderSpinner = dialogFragment.getDialog().findViewById(R.id.edit_folder_parent_folder_spinner);
375         EditText displayOrderEditText = dialogFragment.getDialog().findViewById(R.id.edit_folder_display_order_edittext);
376
377         // Extract the folder information.
378         String newFolderNameString = editBookmarkNameEditText.getText().toString();
379         int parentFolderDatabaseId = (int) parentFolderSpinner.getSelectedItemId();
380         int displayOrderInt = Integer.valueOf(displayOrderEditText.getText().toString());
381
382         // Instantiate the parent folder name `String`.
383         String parentFolderNameString;
384
385         // Set the parent folder name.
386         if (parentFolderDatabaseId == EditBookmarkFolderDatabaseViewDialog.HOME_FOLDER_DATABASE_ID) {  // The home folder is selected.  Use `""`.
387             parentFolderNameString = "";
388         } else {  // Get the parent folder name from the database.
389             parentFolderNameString = bookmarksDatabaseHelper.getFolderName(parentFolderDatabaseId);
390         }
391
392         // Update the folder.
393         if (currentBookmarkIconRadioButton.isChecked()) {  // Update the folder without changing the favorite icon.
394             bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt);
395         } else {  // Update the folder and the icon.
396             // Instantiate the new folder icon `Bitmap`.
397             Bitmap folderIconBitmap;
398
399             // Populate the new folder icon bitmap.
400             if (defaultFolderIconRadioButton.isChecked()) {
401                 // Get the default folder icon and convert it to a `Bitmap`.
402                 Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
403                 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
404                 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
405             } else {  // Use the `WebView` favorite icon.
406                 folderIconBitmap = MainWebViewActivity.favoriteIconBitmap;
407             }
408
409             // Convert the folder icon to a byte array.  `0` is for lossless compression (the only option for a PNG).
410             ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
411             folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
412             byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
413
414             //  Update the folder and the icon.
415             bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt, newFolderIconByteArray);
416         }
417
418         // Update `bookmarksCursor` with the contents of the current folder.
419         switch (currentFolderDatabaseId) {
420             case ALL_FOLDERS_DATABASE_ID:
421                 // Get a cursor with all the bookmarks.
422                 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor();
423                 break;
424
425             case HOME_FOLDER_DATABASE_ID:
426                 // Get a cursor with all the bookmarks in the home folder.
427                 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor("");
428                 break;
429
430             default:
431                 // Get a cursor with all the bookmarks in the current folder.
432                 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor(currentFolderName);
433         }
434
435         // Update the `ListView`.
436         bookmarksCursorAdapter.changeCursor(bookmarksCursor);
437     }
438 }