Add a View Source activity. https://redmine.stoutner.com/issues/64
[PrivacyBrowser.git] / app / src / main / java / com / stoutner / privacybrowser / activities / BookmarksDatabaseViewActivity.java
1 /*
2  * Copyright © 2016-2017 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.widget.AdapterView;
43 import android.widget.EditText;
44 import android.widget.ImageView;
45 import android.widget.ListView;
46 import android.widget.RadioButton;
47 import android.widget.Spinner;
48 import android.widget.TextView;
49
50 import com.stoutner.privacybrowser.R;
51 import com.stoutner.privacybrowser.dialogs.EditBookmarkDatabaseViewDialog;
52 import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDatabaseViewDialog;
53 import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
54
55 import java.io.ByteArrayOutputStream;
56
57 public class BookmarksDatabaseViewActivity extends AppCompatActivity implements EditBookmarkDatabaseViewDialog.EditBookmarkDatabaseViewListener, EditBookmarkFolderDatabaseViewDialog.EditBookmarkFolderDatabaseViewListener {
58     // Instantiate the constants.
59     private static final int ALL_FOLDERS_DATABASE_ID = -2;
60     private static final int HOME_FOLDER_DATABASE_ID = -1;
61
62     // `bookmarksDatabaseHelper` is used in `onCreate()` and `updateBookmarksListView()`.
63     private BookmarksDatabaseHelper bookmarksDatabaseHelper;
64
65     // `bookmarksCursor` is used in `onCreate()`, `updateBookmarksListView()`, `onSaveBookmark()`, and `onSaveBookmarkFolder()`.
66     private Cursor bookmarksCursor;
67
68     // `bookmarksCursorAdapter` is used in `onCreate()`, `onSaveBookmark()`, `onSaveBookmarkFolder()`.
69     private CursorAdapter bookmarksCursorAdapter;
70
71     // `oldFolderNameString` is used in `onCreate()` and `onSaveBookmarkFolder()`.
72     private String oldFolderNameString;
73
74     // `currentFolderDatabaseId` is used in `onCreate()`, `onSaveBookmark()`, and `onSaveBookmarkFolder()`.
75     private int currentFolderDatabaseId;
76
77     // `currentFolder` is used in `onCreate()`, `onSaveBookmark()`, and `onSaveBookmarkFolder()`.
78     private String currentFolderName;
79
80     @Override
81     public void onCreate(Bundle savedInstanceState) {
82         // Set the activity theme.
83         if (MainWebViewActivity.darkTheme) {
84             setTheme(R.style.PrivacyBrowserDark_SecondaryActivity);
85         } else {
86             setTheme(R.style.PrivacyBrowserLight_SecondaryActivity);
87         }
88
89         // Run the default commands.
90         super.onCreate(savedInstanceState);
91
92         // Set the content view.
93         setContentView(R.layout.bookmarks_databaseview_coordinatorlayout);
94
95         // The `SupportActionBar` from `android.support.v7.app.ActionBar` must be used until the minimum API is >= 21.
96         final Toolbar bookmarksDatabaseViewAppBar = findViewById(R.id.bookmarks_databaseview_toolbar);
97         setSupportActionBar(bookmarksDatabaseViewAppBar);
98
99         // Get a handle for the `AppBar`.
100         final ActionBar appBar = getSupportActionBar();
101
102         // Remove the incorrect warning in Android Studio that `appBar` might be null.
103         assert appBar != null;
104
105         // Display the `Spinner` and the back arrow in the `AppBar`.
106         appBar.setCustomView(R.layout.bookmarks_databaseview_spinner);
107         appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM | ActionBar.DISPLAY_HOME_AS_UP);
108
109         // 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`.
110         bookmarksDatabaseHelper = new BookmarksDatabaseHelper(this, null, null, 0);
111
112         // Setup a `MatrixCursor` for "All Folders" and "Home Folder".
113         String[] matrixCursorColumnNames = {BookmarksDatabaseHelper._ID, BookmarksDatabaseHelper.BOOKMARK_NAME};
114         MatrixCursor matrixCursor = new MatrixCursor(matrixCursorColumnNames);
115         matrixCursor.addRow(new Object[]{ALL_FOLDERS_DATABASE_ID, getString(R.string.all_folders)});
116         matrixCursor.addRow(new Object[]{HOME_FOLDER_DATABASE_ID, getString(R.string.home_folder)});
117
118         // Get a `Cursor` with the list of all the folders.
119         Cursor foldersCursor = bookmarksDatabaseHelper.getAllFoldersCursor();
120
121         // Combine `matrixCursor` and `foldersCursor`.
122         MergeCursor foldersMergeCursor = new MergeCursor(new Cursor[]{matrixCursor, foldersCursor});
123
124         // Create a `ResourceCursorAdapter` for the `Spinner` with `this` context.  `0` specifies no flags.;
125         ResourceCursorAdapter foldersCursorAdapter = new ResourceCursorAdapter(this, R.layout.bookmarks_databaseview_spinner_item, foldersMergeCursor, 0) {
126             @Override
127             public void bindView(View view, Context context, Cursor cursor) {
128                 // Get a handle for the `Spinner` item `TextView`.
129                 TextView spinnerItemTextView = view.findViewById(R.id.spinner_item_textview);
130
131                 // Set the `TextView` to display the folder name.
132                 spinnerItemTextView.setText(cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME)));
133             }
134         };
135
136         // Set the `ResourceCursorAdapter` drop drown view resource.
137         foldersCursorAdapter.setDropDownViewResource(R.layout.bookmarks_databaseview_spinner_dropdown_item);
138
139         // Get a handle for the folder `Spinner`.
140         Spinner folderSpinner = findViewById(R.id.bookmarks_databaseview_spinner);
141
142         // Set the adapter for the folder `Spinner`.
143         folderSpinner.setAdapter(foldersCursorAdapter);
144
145         // Handle clicks on the `Spinner` dropdown.
146         folderSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
147             @Override
148             public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
149                 // Convert the database ID to an `int`.
150                 int databaseId = (int) id;
151
152                 // Store the current folder database ID.
153                 currentFolderDatabaseId = databaseId;
154
155                 // Populate the bookmarks `ListView` based on the `Spinner` selection.
156                 switch (databaseId) {
157                     // Get a cursor with all the folders.
158                     case ALL_FOLDERS_DATABASE_ID:
159                         bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor();
160                         break;
161
162                     // Get a cursor for the home folder.
163                     case HOME_FOLDER_DATABASE_ID:
164                         bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor("");
165                         break;
166
167                     // Display the selected folder.
168                     default:
169                         // Get a handle for the selected view.
170                         TextView selectedFolderTextView = view.findViewById(R.id.spinner_item_textview);
171
172                         // Extract the name of the selected folder.
173                         String folderName = selectedFolderTextView.getText().toString();
174
175                         // Get a cursor for the selected folder.
176                         bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor(folderName);
177
178                         // Store the current folder name.
179                         currentFolderName = folderName;
180                 }
181
182                 // Update the `ListView`.
183                 bookmarksCursorAdapter.changeCursor(bookmarksCursor);
184             }
185
186             @Override
187             public void onNothingSelected(AdapterView<?> parent) {
188                 // Do nothing.
189             }
190         });
191
192         // Get a handle for the bookmarks `ListView`.
193         ListView bookmarksListView = findViewById(R.id.bookmarks_databaseview_listview);
194
195         // Get a `Cursor` with the current contents of the bookmarks database.
196         bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor();
197
198         // Setup a `CursorAdapter` with `this` context.  `false` disables autoRequery.
199         bookmarksCursorAdapter = new CursorAdapter(this, bookmarksCursor, false) {
200             @Override
201             public View newView(Context context, Cursor cursor, ViewGroup parent) {
202                 // Inflate the individual item layout.  `false` does not attach it to the root.
203                 return getLayoutInflater().inflate(R.layout.bookmarks_databaseview_item_linearlayout, parent, false);
204             }
205
206             @Override
207             public void bindView(View view, Context context, Cursor cursor) {
208                 boolean isFolder = (cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.IS_FOLDER)) == 1);
209
210                 // Get the database ID from the `Cursor` and display it in `bookmarkDatabaseIdTextView`.
211                 int bookmarkDatabaseId = cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper._ID));
212                 TextView bookmarkDatabaseIdTextView = view.findViewById(R.id.bookmarks_databaseview_database_id);
213                 bookmarkDatabaseIdTextView.setText(String.valueOf(bookmarkDatabaseId));
214
215                 // Get the favorite icon byte array from the `Cursor`.
216                 byte[] favoriteIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
217                 // Convert the byte array to a `Bitmap` beginning at the beginning at the first byte and ending at the last.
218                 Bitmap favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.length);
219                 // Display the bitmap in `bookmarkFavoriteIcon`.
220                 ImageView bookmarkFavoriteIcon = view.findViewById(R.id.bookmarks_databaseview_favorite_icon);
221                 bookmarkFavoriteIcon.setImageBitmap(favoriteIconBitmap);
222
223                 // Get the bookmark name from the `Cursor` and display it in `bookmarkNameTextView`.
224                 String bookmarkNameString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
225                 TextView bookmarkNameTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_name);
226                 bookmarkNameTextView.setText(bookmarkNameString);
227
228                 // Make the font bold for folders.
229                 if (isFolder) {
230                     // The first argument is `null` prevent changing of the font.
231                     bookmarkNameTextView.setTypeface(null, Typeface.BOLD);
232                 } else {  // Reset the font to default.
233                     bookmarkNameTextView.setTypeface(Typeface.DEFAULT);
234                 }
235
236                 // Get the bookmark URL form the `Cursor` and display it in `bookmarkUrlTextView`.
237                 String bookmarkUrlString = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_URL));
238                 TextView bookmarkUrlTextView = view.findViewById(R.id.bookmarks_databaseview_bookmark_url);
239                 bookmarkUrlTextView.setText(bookmarkUrlString);
240
241                 // Hide the URL if the bookmark is a folder.
242                 if (isFolder) {
243                     bookmarkUrlTextView.setVisibility(View.GONE);
244                 } else {
245                     bookmarkUrlTextView.setVisibility(View.VISIBLE);
246                 }
247
248                 // Get the display order from the `Cursor` and display it in `bookmarkDisplayOrderTextView`.
249                 int bookmarkDisplayOrder = cursor.getInt(cursor.getColumnIndex(BookmarksDatabaseHelper.DISPLAY_ORDER));
250                 TextView bookmarkDisplayOrderTextView = view.findViewById(R.id.bookmarks_databaseview_display_order);
251                 bookmarkDisplayOrderTextView.setText(String.valueOf(bookmarkDisplayOrder));
252
253                 // Get the parent folder from the `Cursor` and display it in `bookmarkParentFolder`.
254                 String bookmarkParentFolder = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.PARENT_FOLDER));
255                 ImageView parentFolderImageView = view.findViewById(R.id.bookmarks_databaseview_parent_folder_icon);
256                 TextView bookmarkParentFolderTextView = view.findViewById(R.id.bookmarks_databaseview_parent_folder);
257
258                 // Make the folder name gray if it is the home folder.
259                 if (bookmarkParentFolder.isEmpty()) {
260                     parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_gray));
261                     bookmarkParentFolderTextView.setText(R.string.home_folder);
262                     bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_500));
263                 } else {
264                     parentFolderImageView.setImageDrawable(ContextCompat.getDrawable(getApplicationContext(), R.drawable.folder_dark_blue));
265                     bookmarkParentFolderTextView.setText(bookmarkParentFolder);
266
267                     // Set the text color according to the theme.
268                     if (MainWebViewActivity.darkTheme) {
269                         bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.gray_300));
270                     } else {
271                         bookmarkParentFolderTextView.setTextColor(ContextCompat.getColor(getApplicationContext(), R.color.black));
272                     }
273                 }
274             }
275         };
276
277         // Update the ListView.
278         bookmarksListView.setAdapter(bookmarksCursorAdapter);
279
280         // Set the current folder database ID.
281         currentFolderDatabaseId = ALL_FOLDERS_DATABASE_ID;
282
283         // Set a listener to edit a bookmark when it is tapped.
284         bookmarksListView.setOnItemClickListener((AdapterView<?> parent, View view, int position, long id) -> {
285             // Convert the database ID to an `int`.
286             int databaseId = (int) id;
287
288             // Show the edit bookmark or edit bookmark folder dialog.
289             if (bookmarksDatabaseHelper.isFolder(databaseId)) {
290                 // Save the current folder name, which is used in `onSaveBookmarkFolder()`.
291                 oldFolderNameString = bookmarksCursor.getString(bookmarksCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
292
293                 // Show the edit bookmark folder dialog.
294                 AppCompatDialogFragment editBookmarkFolderDatabaseViewDialog = EditBookmarkFolderDatabaseViewDialog.folderDatabaseId(databaseId);
295                 editBookmarkFolderDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_folder));
296             } else {
297                 // Show the edit bookmark dialog.
298                 AppCompatDialogFragment editBookmarkDatabaseViewDialog = EditBookmarkDatabaseViewDialog.bookmarkDatabaseId(databaseId);
299                 editBookmarkDatabaseViewDialog.show(getSupportFragmentManager(), getResources().getString(R.string.edit_bookmark));
300             }
301         });
302     }
303
304     @Override
305     public void onSaveBookmark(AppCompatDialogFragment dialogFragment, int selectedBookmarkDatabaseId) {
306         // Get handles for the views from dialog fragment.
307         RadioButton currentBookmarkIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_current_icon_radiobutton);
308         EditText editBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_name_edittext);
309         EditText editBookmarkUrlEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_url_edittext);
310         Spinner folderSpinner = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_folder_spinner);
311         EditText displayOrderEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_display_order_edittext);
312
313         // Extract the bookmark information.
314         String bookmarkNameString = editBookmarkNameEditText.getText().toString();
315         String bookmarkUrlString = editBookmarkUrlEditText.getText().toString();
316         int folderDatabaseId = (int) folderSpinner.getSelectedItemId();
317         int displayOrderInt = Integer.valueOf(displayOrderEditText.getText().toString());
318
319         // Instantiate the parent folder name `String`.
320         String parentFolderNameString;
321
322         // Set the parent folder name.
323         if (folderDatabaseId == EditBookmarkDatabaseViewDialog.HOME_FOLDER_DATABASE_ID) {  // The home folder is selected.  Use `""`.
324             parentFolderNameString = "";
325         } else {  // Get the parent folder name from the database.
326             parentFolderNameString = bookmarksDatabaseHelper.getFolderName(folderDatabaseId);
327         }
328
329         // Update the bookmark.
330         if (currentBookmarkIconRadioButton.isChecked()) {  // Update the bookmark without changing the favorite icon.
331             bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt);
332         } else {  // Update the bookmark using the `WebView` favorite icon.
333             // Convert the favorite icon to a byte array.  `0` is for lossless compression (the only option for a PNG).
334             ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
335             MainWebViewActivity.favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
336             byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
337
338             //  Update the bookmark and the favorite icon.
339             bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, parentFolderNameString, displayOrderInt, newFavoriteIconByteArray);
340         }
341
342         // Update `bookmarksCursor` with the contents of the current folder.
343         switch (currentFolderDatabaseId) {
344             case ALL_FOLDERS_DATABASE_ID:
345                 // Get a cursor with all the bookmarks.
346                 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor();
347                 break;
348
349             case HOME_FOLDER_DATABASE_ID:
350                 // Get a cursor with all the bookmarks in the home folder.
351                 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor("");
352                 break;
353
354             default:
355                 // Get a cursor with all the bookmarks in the current folder.
356                 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor(currentFolderName);
357         }
358
359         // Update the `ListView`.
360         bookmarksCursorAdapter.changeCursor(bookmarksCursor);
361     }
362
363     @Override
364     public void onSaveBookmarkFolder(AppCompatDialogFragment dialogFragment, int selectedBookmarkDatabaseId) {
365         // Get handles for the views from dialog fragment.
366         RadioButton currentBookmarkIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_current_icon_radiobutton);
367         RadioButton defaultFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_radiobutton);
368         ImageView defaultFolderIconImageView = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_imageview);
369         EditText editBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_folder_name_edittext);
370         Spinner parentFolderSpinner = dialogFragment.getDialog().findViewById(R.id.edit_folder_parent_folder_spinner);
371         EditText displayOrderEditText = dialogFragment.getDialog().findViewById(R.id.edit_folder_display_order_edittext);
372
373         // Extract the folder information.
374         String newFolderNameString = editBookmarkNameEditText.getText().toString();
375         int parentFolderDatabaseId = (int) parentFolderSpinner.getSelectedItemId();
376         int displayOrderInt = Integer.valueOf(displayOrderEditText.getText().toString());
377
378         // Instantiate the parent folder name `String`.
379         String parentFolderNameString;
380
381         // Set the parent folder name.
382         if (parentFolderDatabaseId == EditBookmarkFolderDatabaseViewDialog.HOME_FOLDER_DATABASE_ID) {  // The home folder is selected.  Use `""`.
383             parentFolderNameString = "";
384         } else {  // Get the parent folder name from the database.
385             parentFolderNameString = bookmarksDatabaseHelper.getFolderName(parentFolderDatabaseId);
386         }
387
388         // Update the folder.
389         if (currentBookmarkIconRadioButton.isChecked()) {  // Update the folder without changing the favorite icon.
390             bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt);
391         } else {  // Update the folder and the icon.
392             // Instantiate the new folder icon `Bitmap`.
393             Bitmap folderIconBitmap;
394
395             // Populate the new folder icon bitmap.
396             if (defaultFolderIconRadioButton.isChecked()) {
397                 // Get the default folder icon and convert it to a `Bitmap`.
398                 Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
399                 BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
400                 folderIconBitmap = folderIconBitmapDrawable.getBitmap();
401             } else {  // Use the `WebView` favorite icon.
402                 folderIconBitmap = MainWebViewActivity.favoriteIconBitmap;
403             }
404
405             // Convert the folder icon to a byte array.  `0` is for lossless compression (the only option for a PNG).
406             ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
407             folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
408             byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
409
410             //  Update the folder and the icon.
411             bookmarksDatabaseHelper.updateFolder(selectedBookmarkDatabaseId, oldFolderNameString, newFolderNameString, parentFolderNameString, displayOrderInt, newFolderIconByteArray);
412         }
413
414         // Update `bookmarksCursor` with the contents of the current folder.
415         switch (currentFolderDatabaseId) {
416             case ALL_FOLDERS_DATABASE_ID:
417                 // Get a cursor with all the bookmarks.
418                 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor();
419                 break;
420
421             case HOME_FOLDER_DATABASE_ID:
422                 // Get a cursor with all the bookmarks in the home folder.
423                 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor("");
424                 break;
425
426             default:
427                 // Get a cursor with all the bookmarks in the current folder.
428                 bookmarksCursor = bookmarksDatabaseHelper.getAllBookmarksCursor(currentFolderName);
429         }
430
431         // Update the `ListView`.
432         bookmarksCursorAdapter.changeCursor(bookmarksCursor);
433     }
434 }