2 * Copyright © 2016-2017 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.dialogs;
22 import android.annotation.SuppressLint;
23 import android.app.AlertDialog;
24 import android.app.Dialog;
25 import android.content.Context;
26 import android.content.DialogInterface;
27 import android.database.Cursor;
28 import android.database.DatabaseUtils;
29 import android.database.MatrixCursor;
30 import android.database.MergeCursor;
31 import android.graphics.Bitmap;
32 import android.graphics.BitmapFactory;
33 import android.graphics.drawable.BitmapDrawable;
34 import android.graphics.drawable.Drawable;
35 import android.os.Bundle;
36 import android.support.annotation.NonNull;
37 import android.support.v4.content.ContextCompat;
38 // We have to use `AppCompatDialogFragment` instead of `DialogFragment` or an error is produced on API <=22.
39 import android.support.v7.app.AppCompatDialogFragment;
40 import android.view.View;
41 import android.view.ViewGroup;
42 import android.widget.CursorAdapter;
43 import android.widget.ImageView;
44 import android.widget.ListView;
45 import android.widget.TextView;
47 import com.stoutner.privacybrowser.R;
48 import com.stoutner.privacybrowser.activities.BookmarksActivity;
49 import com.stoutner.privacybrowser.activities.MainWebViewActivity;
50 import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
52 import java.io.ByteArrayOutputStream;
54 public class MoveToFolderDialog extends AppCompatDialogFragment {
55 // The public interface is used to send information back to the parent activity.
56 public interface MoveToFolderListener {
57 void onMoveToFolder(AppCompatDialogFragment dialogFragment);
60 // `moveToFolderListener` is used in `onAttach()` and `onCreateDialog`.
61 private MoveToFolderListener moveToFolderListener;
63 public void onAttach(Context context) {
64 super.onAttach(context);
66 // Get a handle for `MoveToFolderListener` from `parentActivity`.
68 moveToFolderListener = (MoveToFolderListener) context;
69 } catch(ClassCastException exception) {
70 throw new ClassCastException(context.toString() + " must implement EditBookmarkFolderListener.");
74 // `exceptFolders` is used in `onCreateDialog()` and `addSubfoldersToExceptFolders()`.
75 private String exceptFolders;
77 // `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`.
78 @SuppressLint("InflateParams")
81 public Dialog onCreateDialog(Bundle savedInstanceState) {
82 // Use `AlertDialog.Builder` to create the `AlertDialog`.
83 AlertDialog.Builder dialogBuilder;
85 // Set the style according to the theme.
86 if (MainWebViewActivity.darkTheme) {
87 dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogDark);
89 dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogLight);
93 dialogBuilder.setTitle(R.string.move_to_folder);
95 // Set the view. The parent view is `null` because it will be assigned by `AlertDialog`.
96 dialogBuilder.setView(getActivity().getLayoutInflater().inflate(R.layout.move_to_folder_dialog, null));
98 // Set an `onClick()` listener for the negative button.
99 dialogBuilder.setNegativeButton(R.string.cancel, new Dialog.OnClickListener() {
101 public void onClick(DialogInterface dialog, int which) {
102 // Do nothing. The `AlertDialog` will close automatically.
106 // Set the `onClick()` listener fo the positive button.
107 dialogBuilder.setPositiveButton(R.string.move, new Dialog.OnClickListener() {
109 public void onClick(DialogInterface dialog, int which) {
110 // Return the `DialogFragment` to the parent activity on save.
111 moveToFolderListener.onMoveToFolder(MoveToFolderDialog.this);
115 // Create an `AlertDialog` from the `AlertDialog.Builder`.
116 final AlertDialog alertDialog = dialogBuilder.create();
118 // We need to show the `AlertDialog` before we can modify items in the layout.
121 // Initialize the `Cursor` and `CursorAdapter` variables.
122 Cursor foldersCursor;
123 CursorAdapter foldersCursorAdapter;
125 // Check to see if we are in the `Home Folder`.
126 if (BookmarksActivity.currentFolder.isEmpty()) { // Don't display `Home Folder` at the top of the `ListView`.
127 // Initialize `exceptFolders`.
130 // If a folder is selected, add it and all children to the list of folders not to display.
131 long[] selectedBookmarksLongArray = BookmarksActivity.checkedItemIds;
132 for (long databaseIdLong : selectedBookmarksLongArray) {
133 // Get `databaseIdInt` for each selected bookmark.
134 int databaseIdInt = (int) databaseIdLong;
136 // If `databaseIdInt` is a folder.
137 if (BookmarksActivity.bookmarksDatabaseHelper.isFolder(databaseIdInt)) {
138 // Get the name of the selected folder.
139 String folderName = BookmarksActivity.bookmarksDatabaseHelper.getFolderName(databaseIdInt);
141 if (exceptFolders.isEmpty()){
142 // Add the selected folder to the list of folders not to display.
143 exceptFolders = DatabaseUtils.sqlEscapeString(folderName);
145 // Add the selected folder to the end of the list of folders not to display.
146 exceptFolders = exceptFolders + "," + DatabaseUtils.sqlEscapeString(folderName);
149 // Add the selected folder's subfolders to the list of folders not to display.
150 addSubfoldersToExceptFolders(folderName);
154 // Get a `Cursor` containing the folders to display.
155 foldersCursor = BookmarksActivity.bookmarksDatabaseHelper.getFoldersCursorExcept(exceptFolders);
157 // Setup `foldersCursorAdaptor` with `this` context. `false` disables autoRequery.
158 foldersCursorAdapter = new CursorAdapter(alertDialog.getContext(), foldersCursor, false) {
160 public View newView(Context context, Cursor cursor, ViewGroup parent) {
161 // Inflate the individual item layout. `false` does not attach it to the root.
162 return getActivity().getLayoutInflater().inflate(R.layout.move_to_folder_item_linearlayout, parent, false);
166 public void bindView(View view, Context context, Cursor cursor) {
167 // Get the folder icon from `cursor`.
168 byte[] folderIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
169 // Convert the byte array to a `Bitmap` beginning at the first byte and ending at the last.
170 Bitmap folderIconBitmap = BitmapFactory.decodeByteArray(folderIconByteArray, 0, folderIconByteArray.length);
171 // Display `folderIconBitmap` in `move_to_folder_icon`.
172 ImageView folderIconImageView = (ImageView) view.findViewById(R.id.move_to_folder_icon);
173 folderIconImageView.setImageBitmap(folderIconBitmap);
175 // Get the folder name from `cursor` and display it in `move_to_folder_name_textview`.
176 String folderName = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
177 TextView folderNameTextView = (TextView) view.findViewById(R.id.move_to_folder_name_textview);
178 folderNameTextView.setText(folderName);
181 } else { // Display `Home Folder` at the top of the `ListView`.
182 // Get the home folder icon drawable and convert it to a `Bitmap`. `this` specifies the current context.
183 Drawable homeFolderIconDrawable = ContextCompat.getDrawable(getActivity().getApplicationContext(), R.drawable.folder_gray_bitmap);
184 BitmapDrawable homeFolderIconBitmapDrawable = (BitmapDrawable) homeFolderIconDrawable;
185 Bitmap homeFolderIconBitmap = homeFolderIconBitmapDrawable.getBitmap();
186 // Convert the folder `Bitmap` to a byte array. `0` is for lossless compression (the only option for a PNG).
187 ByteArrayOutputStream homeFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
188 homeFolderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, homeFolderIconByteArrayOutputStream);
189 byte[] homeFolderIconByteArray = homeFolderIconByteArrayOutputStream.toByteArray();
191 // Setup a `MatrixCursor` for the `Home Folder`.
192 String[] homeFolderMatrixCursorColumnNames = {BookmarksDatabaseHelper._ID, BookmarksDatabaseHelper.BOOKMARK_NAME, BookmarksDatabaseHelper.FAVORITE_ICON};
193 MatrixCursor homeFolderMatrixCursor = new MatrixCursor(homeFolderMatrixCursorColumnNames);
194 homeFolderMatrixCursor.addRow(new Object[]{0, getString(R.string.home_folder), homeFolderIconByteArray});
196 // Add the parent folder to the list of folders not to display.
197 exceptFolders = DatabaseUtils.sqlEscapeString(BookmarksActivity.currentFolder);
199 // If a folder is selected, add it and all children to the list of folders not to display.
200 long[] selectedBookmarksLongArray = BookmarksActivity.checkedItemIds;
201 for (long databaseIdLong : selectedBookmarksLongArray) {
202 // Get `databaseIdInt` for each selected bookmark.
203 int databaseIdInt = (int) databaseIdLong;
205 // If `databaseIdInt` is a folder.
206 if (BookmarksActivity.bookmarksDatabaseHelper.isFolder(databaseIdInt)) {
207 // Get the name of the selected folder.
208 String folderName = BookmarksActivity.bookmarksDatabaseHelper.getFolderName(databaseIdInt);
210 // Add the selected folder to the end of the list of folders not to display.
211 exceptFolders = exceptFolders + "," + DatabaseUtils.sqlEscapeString(folderName);
213 // Add the selected folder's subfolders to the list of folders not to display.
214 addSubfoldersToExceptFolders(folderName);
218 // Get a `foldersCursor`.
219 foldersCursor = BookmarksActivity.bookmarksDatabaseHelper.getFoldersCursorExcept(exceptFolders);
221 // Combine `homeFolderMatrixCursor` and `foldersCursor`.
222 MergeCursor foldersMergeCursor = new MergeCursor(new Cursor[]{homeFolderMatrixCursor, foldersCursor});
224 // Setup `foldersCursorAdaptor` with `this` context. `false` disables autoRequery.
225 foldersCursorAdapter = new CursorAdapter(alertDialog.getContext(), foldersMergeCursor, false) {
227 public View newView(Context context, Cursor cursor, ViewGroup parent) {
228 // Inflate the individual item layout. `false` does not attach it to the root.
229 return getActivity().getLayoutInflater().inflate(R.layout.move_to_folder_item_linearlayout, parent, false);
233 public void bindView(View view, Context context, Cursor cursor) {
234 // Get the folder icon from `cursor`.
235 byte[] folderIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
236 // Convert the byte array to a `Bitmap` beginning at the first byte and ending at the last.
237 Bitmap folderIconBitmap = BitmapFactory.decodeByteArray(folderIconByteArray, 0, folderIconByteArray.length);
238 // Display `folderIconBitmap` in `move_to_folder_icon`.
239 ImageView folderIconImageView = (ImageView) view.findViewById(R.id.move_to_folder_icon);
240 folderIconImageView.setImageBitmap(folderIconBitmap);
242 // Get the folder name from `cursor` and display it in `move_to_folder_name_textview`.
243 String folderName = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
244 TextView folderNameTextView = (TextView) view.findViewById(R.id.move_to_folder_name_textview);
245 folderNameTextView.setText(folderName);
250 // Display the ListView
251 ListView foldersListView = (ListView) alertDialog.findViewById(R.id.move_to_folder_listview);
252 foldersListView.setAdapter(foldersCursorAdapter);
254 // `onCreateDialog` requires the return of an `AlertDialog`.
258 private void addSubfoldersToExceptFolders(String folderName) {
259 // Get a `Cursor` will all the immediate subfolders.
260 Cursor subfoldersCursor = BookmarksActivity.bookmarksDatabaseHelper.getSubfoldersCursor(folderName);
262 for (int i = 0; i < subfoldersCursor.getCount(); i++) {
263 // Move `subfolderCursor` to the current item.
264 subfoldersCursor.moveToPosition(i);
266 // Get the name of the subfolder.
267 String subfolderName = subfoldersCursor.getString(subfoldersCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
269 // Run the same tasks for any subfolders of the subfolder.
270 addSubfoldersToExceptFolders(subfolderName);
272 // Add the subfolder to `exceptFolders`.
273 subfolderName = DatabaseUtils.sqlEscapeString(subfolderName);
274 exceptFolders = exceptFolders + "," + subfolderName;