2 * Copyright 2016 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.Dialog;
24 import android.content.Context;
25 import android.content.DialogInterface;
26 import android.database.Cursor;
27 import android.database.DatabaseUtils;
28 import android.database.MatrixCursor;
29 import android.database.MergeCursor;
30 import android.graphics.Bitmap;
31 import android.graphics.BitmapFactory;
32 import android.graphics.drawable.BitmapDrawable;
33 import android.graphics.drawable.Drawable;
34 import android.os.Bundle;
35 import android.support.annotation.NonNull;
36 // If we don't use `android.support.v7.app.AlertDialog` instead of `android.app.AlertDialog` then the dialog will be covered by the keyboard.
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.AlertDialog;
40 import android.support.v7.app.AppCompatDialogFragment;
41 import android.view.View;
42 import android.view.ViewGroup;
43 import android.widget.CursorAdapter;
44 import android.widget.ImageView;
45 import android.widget.ListView;
46 import android.widget.TextView;
48 import com.stoutner.privacybrowser.R;
49 import com.stoutner.privacybrowser.activities.Bookmarks;
50 import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper;
52 import java.io.ByteArrayOutputStream;
54 public class MoveToFolder 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`. The style formats the color of the button text.
83 AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.LightAlertDialog);
84 dialogBuilder.setTitle(R.string.move_to_folder);
85 // The parent view is `null` because it will be assigned by `AlertDialog`.
86 dialogBuilder.setView(getActivity().getLayoutInflater().inflate(R.layout.move_to_folder_dialog, null));
88 // Set an `onClick()` listener for the negative button.
89 dialogBuilder.setNegativeButton(R.string.cancel, new Dialog.OnClickListener() {
91 public void onClick(DialogInterface dialog, int which) {
92 // Do nothing. The `AlertDialog` will close automatically.
96 // Set the `onClick()` listener fo the positive button.
97 dialogBuilder.setPositiveButton(R.string.move, new Dialog.OnClickListener() {
99 public void onClick(DialogInterface dialog, int which) {
100 // Return the `DialogFragment` to the parent activity on save.
101 moveToFolderListener.onMoveToFolder(MoveToFolder.this);
105 // Create an `AlertDialog` from the `AlertDialog.Builder`.
106 final AlertDialog alertDialog = dialogBuilder.create();
108 // We need to show the `AlertDialog` before we can modify items in the layout.
111 // Initialize the `Cursor` and `CursorAdapter` variables.
112 Cursor foldersCursor;
113 CursorAdapter foldersCursorAdapter;
115 // Check to see if we are in the `Home Folder`.
116 if (Bookmarks.currentFolder.isEmpty()) { // Don't display `Home Folder` at the top of the `ListView`.
117 // Initialize `exceptFolders`.
120 // If a folder is selected, add it and all children to the list of folders not to display.
121 long[] selectedBookmarksLongArray = Bookmarks.checkedItemIds;
122 for (long databaseIdLong : selectedBookmarksLongArray) {
123 // Get `databaseIdInt` for each selected bookmark.
124 int databaseIdInt = (int) databaseIdLong;
126 // If `databaseIdInt` is a folder.
127 if (Bookmarks.bookmarksDatabaseHelper.isFolder(databaseIdInt)) {
128 // Get the name of the selected folder.
129 String folderName = Bookmarks.bookmarksDatabaseHelper.getFolderName(databaseIdInt);
131 if (exceptFolders.isEmpty()){
132 // Add the selected folder to the list of folders not to display.
133 exceptFolders = DatabaseUtils.sqlEscapeString(folderName);
135 // Add the selected folder to the end of the list of folders not to display.
136 exceptFolders = exceptFolders + "," + DatabaseUtils.sqlEscapeString(folderName);
139 // Add the selected folder's subfolders to the list of folders not to display.
140 addSubfoldersToExceptFolders(folderName);
144 // Get a `Cursor` containing the folders to display.
145 foldersCursor = Bookmarks.bookmarksDatabaseHelper.getFoldersCursorExcept(exceptFolders);
147 // Setup `foldersCursorAdaptor` with `this` context. `false` disables autoRequery.
148 foldersCursorAdapter = new CursorAdapter(alertDialog.getContext(), foldersCursor, false) {
150 public View newView(Context context, Cursor cursor, ViewGroup parent) {
151 // Inflate the individual item layout. `false` does not attach it to the root.
152 return getActivity().getLayoutInflater().inflate(R.layout.move_to_folder_item_linearlayout, parent, false);
156 public void bindView(View view, Context context, Cursor cursor) {
157 // Get the folder icon from `cursor`.
158 byte[] folderIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
159 // Convert the byte array to a `Bitmap` beginning at the first byte and ending at the last.
160 Bitmap folderIconBitmap = BitmapFactory.decodeByteArray(folderIconByteArray, 0, folderIconByteArray.length);
161 // Display `folderIconBitmap` in `move_to_folder_icon`.
162 ImageView folderIconImageView = (ImageView) view.findViewById(R.id.move_to_folder_icon);
163 assert folderIconImageView != null; // Remove the warning below that `currentIconImageView` might be null;
164 folderIconImageView.setImageBitmap(folderIconBitmap);
166 // Get the folder name from `cursor` and display it in `move_to_folder_name_textview`.
167 String folderName = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
168 TextView folderNameTextView = (TextView) view.findViewById(R.id.move_to_folder_name_textview);
169 folderNameTextView.setText(folderName);
172 } else { // Display `Home Folder` at the top of the `ListView`.
173 // Get the home folder icon drawable and convert it to a `Bitmap`. `this` specifies the current context.
174 Drawable homeFolderIconDrawable = ContextCompat.getDrawable(getActivity().getApplicationContext(), R.drawable.folder_gray_bitmap);
175 BitmapDrawable homeFolderIconBitmapDrawable = (BitmapDrawable) homeFolderIconDrawable;
176 Bitmap homeFolderIconBitmap = homeFolderIconBitmapDrawable.getBitmap();
177 // Convert the folder `Bitmap` to a byte array. `0` is for lossless compression (the only option for a PNG).
178 ByteArrayOutputStream homeFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
179 homeFolderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, homeFolderIconByteArrayOutputStream);
180 byte[] homeFolderIconByteArray = homeFolderIconByteArrayOutputStream.toByteArray();
182 // Setup a `MatrixCursor` for the `Home Folder`.
183 String[] homeFolderMatrixCursorColumnNames = {BookmarksDatabaseHelper._ID, BookmarksDatabaseHelper.BOOKMARK_NAME, BookmarksDatabaseHelper.FAVORITE_ICON};
184 MatrixCursor homeFolderMatrixCursor = new MatrixCursor(homeFolderMatrixCursorColumnNames);
185 homeFolderMatrixCursor.addRow(new Object[]{0, getString(R.string.home_folder), homeFolderIconByteArray});
187 // Add the parent folder to the list of folders not to display.
188 exceptFolders = DatabaseUtils.sqlEscapeString(Bookmarks.currentFolder);
190 // If a folder is selected, add it and all children to the list of folders not to display.
191 long[] selectedBookmarksLongArray = Bookmarks.checkedItemIds;
192 for (long databaseIdLong : selectedBookmarksLongArray) {
193 // Get `databaseIdInt` for each selected bookmark.
194 int databaseIdInt = (int) databaseIdLong;
196 // If `databaseIdInt` is a folder.
197 if (Bookmarks.bookmarksDatabaseHelper.isFolder(databaseIdInt)) {
198 // Get the name of the selected folder.
199 String folderName = Bookmarks.bookmarksDatabaseHelper.getFolderName(databaseIdInt);
201 // Add the selected folder to the end of the list of folders not to display.
202 exceptFolders = exceptFolders + "," + DatabaseUtils.sqlEscapeString(folderName);
204 // Add the selected folder's subfolders to the list of folders not to display.
205 addSubfoldersToExceptFolders(folderName);
209 // Get a `foldersCursor`.
210 foldersCursor = Bookmarks.bookmarksDatabaseHelper.getFoldersCursorExcept(exceptFolders);
212 // Combine `homeFolderMatrixCursor` and `foldersCursor`.
213 MergeCursor foldersMergeCursor = new MergeCursor(new Cursor[]{homeFolderMatrixCursor, foldersCursor});
215 // Setup `foldersCursorAdaptor` with `this` context. `false` disables autoRequery.
216 foldersCursorAdapter = new CursorAdapter(alertDialog.getContext(), foldersMergeCursor, false) {
218 public View newView(Context context, Cursor cursor, ViewGroup parent) {
219 // Inflate the individual item layout. `false` does not attach it to the root.
220 return getActivity().getLayoutInflater().inflate(R.layout.move_to_folder_item_linearlayout, parent, false);
224 public void bindView(View view, Context context, Cursor cursor) {
225 // Get the folder icon from `cursor`.
226 byte[] folderIconByteArray = cursor.getBlob(cursor.getColumnIndex(BookmarksDatabaseHelper.FAVORITE_ICON));
227 // Convert the byte array to a `Bitmap` beginning at the first byte and ending at the last.
228 Bitmap folderIconBitmap = BitmapFactory.decodeByteArray(folderIconByteArray, 0, folderIconByteArray.length);
229 // Display `folderIconBitmap` in `move_to_folder_icon`.
230 ImageView folderIconImageView = (ImageView) view.findViewById(R.id.move_to_folder_icon);
231 assert folderIconImageView != null; // Remove the warning below that `currentIconImageView` might be null;
232 folderIconImageView.setImageBitmap(folderIconBitmap);
234 // Get the folder name from `cursor` and display it in `move_to_folder_name_textview`.
235 String folderName = cursor.getString(cursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
236 TextView folderNameTextView = (TextView) view.findViewById(R.id.move_to_folder_name_textview);
237 folderNameTextView.setText(folderName);
242 // Display the ListView
243 ListView foldersListView = (ListView) alertDialog.findViewById(R.id.move_to_folder_listview);
244 assert foldersListView != null; // Remove the warning below that `foldersListView` might be null.
245 foldersListView.setAdapter(foldersCursorAdapter);
247 // `onCreateDialog` requires the return of an `AlertDialog`.
251 private void addSubfoldersToExceptFolders(String folderName) {
252 // Get a `Cursor` will all the immediate subfolders.
253 Cursor subfoldersCursor = Bookmarks.bookmarksDatabaseHelper.getSubfoldersCursor(folderName);
255 for (int i = 0; i < subfoldersCursor.getCount(); i++) {
256 // Move `subfolderCursor` to the current item.
257 subfoldersCursor.moveToPosition(i);
259 // Get the name of the subfolder.
260 String subfolderName = subfoldersCursor.getString(subfoldersCursor.getColumnIndex(BookmarksDatabaseHelper.BOOKMARK_NAME));
262 // Run the same tasks for any subfolders of the subfolder.
263 addSubfoldersToExceptFolders(subfolderName);
265 // Add the subfolder to `exceptFolders`.
266 subfolderName = DatabaseUtils.sqlEscapeString(subfolderName);
267 exceptFolders = exceptFolders + "," + subfolderName;