2 * Copyright 2016-2024 Soren Stoutner <soren@stoutner.com>.
4 * This file is part of Privacy Browser Android <https://www.stoutner.com/privacy-browser-android>.
6 * Privacy Browser Android 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 Android 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 Android. If not, see <http://www.gnu.org/licenses/>.
20 package com.stoutner.privacybrowser.dialogs
22 import android.app.Dialog
23 import android.content.Context
24 import android.content.DialogInterface
25 import android.database.Cursor
26 import android.database.MatrixCursor
27 import android.database.MergeCursor
28 import android.graphics.Bitmap
29 import android.graphics.BitmapFactory
30 import android.net.Uri
31 import android.os.Bundle
32 import android.text.Editable
33 import android.text.TextWatcher
34 import android.view.KeyEvent
35 import android.view.View
36 import android.view.WindowManager
37 import android.widget.AdapterView
38 import android.widget.AdapterView.OnItemSelectedListener
39 import android.widget.Button
40 import android.widget.EditText
41 import android.widget.ImageView
42 import android.widget.LinearLayout
43 import android.widget.RadioButton
44 import android.widget.Spinner
45 import android.widget.TextView
47 import androidx.activity.result.contract.ActivityResultContracts
48 import androidx.appcompat.app.AlertDialog
49 import androidx.appcompat.content.res.AppCompatResources
50 import androidx.cursoradapter.widget.ResourceCursorAdapter
51 import androidx.fragment.app.DialogFragment
52 import androidx.preference.PreferenceManager
54 import com.google.android.material.snackbar.Snackbar
56 import com.stoutner.privacybrowser.R
57 import com.stoutner.privacybrowser.activities.HOME_FOLDER_DATABASE_ID
58 import com.stoutner.privacybrowser.activities.HOME_FOLDER_ID
59 import com.stoutner.privacybrowser.helpers.BOOKMARK_NAME
60 import com.stoutner.privacybrowser.helpers.BOOKMARK_URL
61 import com.stoutner.privacybrowser.helpers.DISPLAY_ORDER
62 import com.stoutner.privacybrowser.helpers.FAVORITE_ICON
63 import com.stoutner.privacybrowser.helpers.FOLDER_ID
64 import com.stoutner.privacybrowser.helpers.ID
65 import com.stoutner.privacybrowser.helpers.PARENT_FOLDER_ID
66 import com.stoutner.privacybrowser.helpers.BookmarksDatabaseHelper
68 import java.io.ByteArrayOutputStream
70 // Define the class constants.
71 private const val DATABASE_ID = "A"
72 private const val FAVORITE_ICON_BYTE_ARRAY = "B"
74 class EditBookmarkDatabaseViewDialog : DialogFragment() {
76 fun bookmarkDatabaseId(databaseId: Int, favoriteIconBitmap: Bitmap): EditBookmarkDatabaseViewDialog {
77 // Create a favorite icon byte array output stream.
78 val favoriteIconByteArrayOutputStream = ByteArrayOutputStream()
80 // Convert the favorite icon to a PNG and place it in the byte array output stream. `0` is for lossless compression (the only option for a PNG).
81 favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, favoriteIconByteArrayOutputStream)
83 // Convert the byte array output stream to a byte array.
84 val favoriteIconByteArray = favoriteIconByteArrayOutputStream.toByteArray()
86 // Create an arguments bundle.
87 val argumentsBundle = Bundle()
89 // Store the variables in the bundle.
90 argumentsBundle.putInt(DATABASE_ID, databaseId)
91 argumentsBundle.putByteArray(FAVORITE_ICON_BYTE_ARRAY, favoriteIconByteArray)
93 // Create a new instance of the dialog.
94 val editBookmarkDatabaseViewDialog = EditBookmarkDatabaseViewDialog()
96 // Add the arguments bundle to the dialog.
97 editBookmarkDatabaseViewDialog.arguments = argumentsBundle
99 // Return the new dialog.
100 return editBookmarkDatabaseViewDialog
104 private val browseActivityResultLauncher = registerForActivityResult(ActivityResultContracts.GetContent()) { imageUri: Uri? ->
105 // Only do something if the user didn't press back from the file picker.
106 if (imageUri != null) {
107 // Get a handle for the content resolver.
108 val contentResolver = requireContext().contentResolver
110 // Get the image MIME type.
111 val mimeType = contentResolver.getType(imageUri)
113 // Decode the image according to the type.
114 if (mimeType == "image/svg+xml") { // The image is an SVG.
115 // Display a snackbar.
116 Snackbar.make(bookmarkNameEditText, getString(R.string.cannot_use_svg), Snackbar.LENGTH_LONG).show()
117 } else { // The image is not an SVG.
118 // Get an input stream for the image URI.
119 val inputStream = contentResolver.openInputStream(imageUri)
121 // Get the bitmap from the URI.
122 // `ImageDecoder.decodeBitmap` can't be used, because when running `Drawable.toBitmap` later the `Software rendering doesn't support hardware bitmaps` error message might be produced.
123 var imageBitmap = BitmapFactory.decodeStream(inputStream)
125 // Scale the image down if it is greater than 128 pixels in either direction.
126 if ((imageBitmap != null) && ((imageBitmap.height > 128) || (imageBitmap.width > 128)))
127 imageBitmap = Bitmap.createScaledBitmap(imageBitmap, 128, 128, true)
129 // Display the new custom favorite icon.
130 customIconImageView.setImageBitmap(imageBitmap)
132 // Select the custom icon radio button.
133 customIconLinearLayout.performClick()
138 // Declare the class views.
139 private lateinit var bookmarkNameEditText: EditText
140 private lateinit var bookmarkUrlEditText: EditText
141 private lateinit var currentIconRadioButton: RadioButton
142 private lateinit var customIconImageView: ImageView
143 private lateinit var customIconLinearLayout: LinearLayout
144 private lateinit var displayOrderEditText: EditText
145 private lateinit var folderSpinner: Spinner
146 private lateinit var saveButton: Button
148 // Declare the class variables.
149 private lateinit var editBookmarkDatabaseViewListener: EditBookmarkDatabaseViewListener
151 // The public interface is used to send information back to the parent activity.
152 interface EditBookmarkDatabaseViewListener {
153 fun saveBookmark(dialogFragment: DialogFragment, selectedBookmarkDatabaseId: Int)
156 override fun onAttach(context: Context) {
157 // Run the default commands.
158 super.onAttach(context)
160 // Get a handle for edit bookmark database view listener from the launching context.
161 editBookmarkDatabaseViewListener = context as EditBookmarkDatabaseViewListener
164 override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
165 // Get the arguments.
166 val arguments = requireArguments()
168 // Get the variables from the arguments.
169 val bookmarkDatabaseId = arguments.getInt(DATABASE_ID)
170 val favoriteIconByteArray = arguments.getByteArray(FAVORITE_ICON_BYTE_ARRAY)!!
172 // Convert the favorite icon byte array to a bitmap.
173 val favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.size)
175 // Initialize the database helper.
176 val bookmarksDatabaseHelper = BookmarksDatabaseHelper(requireContext())
178 // Get a cursor with the selected bookmark.
179 val bookmarkCursor = bookmarksDatabaseHelper.getBookmark(bookmarkDatabaseId)
181 // Move the cursor to the first position.
182 bookmarkCursor.moveToFirst()
184 // Use an alert dialog builder to create the dialog and set the style according to the theme.
185 val dialogBuilder = AlertDialog.Builder(requireContext(), R.style.PrivacyBrowserAlertDialog)
188 dialogBuilder.setTitle(R.string.edit_bookmark)
191 dialogBuilder.setIcon(R.drawable.bookmark)
194 dialogBuilder.setView(R.layout.edit_bookmark_databaseview_dialog)
196 // Set the cancel button listener. Using `null` as the listener closes the dialog without doing anything else.
197 dialogBuilder.setNegativeButton(R.string.cancel, null)
199 // Set the save button listener.
200 dialogBuilder.setPositiveButton(R.string.save) { _: DialogInterface, _: Int ->
201 // Return the dialog fragment to the parent activity on save.
202 editBookmarkDatabaseViewListener.saveBookmark(this, bookmarkDatabaseId)
205 // Create an alert dialog from the alert dialog builder.
206 val alertDialog = dialogBuilder.create()
208 // Get a handle for the shared preferences.
209 val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(requireContext())
211 // Get the screenshot preference.
212 val allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false)
214 // Disable screenshots if not allowed.
215 if (!allowScreenshots) {
216 alertDialog.window!!.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
219 // The alert dialog must be shown before items in the layout can be modified.
222 // Get handles for the layout items.
223 val databaseIdTextView = alertDialog.findViewById<TextView>(R.id.bookmark_database_id_textview)!!
224 val currentIconLinearLayout = alertDialog.findViewById<LinearLayout>(R.id.current_icon_linearlayout)!!
225 currentIconRadioButton = alertDialog.findViewById(R.id.current_icon_radiobutton)!!
226 val currentIconImageView = alertDialog.findViewById<ImageView>(R.id.current_icon_imageview)!!
227 val webpageFavoriteIconLinearLayout = alertDialog.findViewById<LinearLayout>(R.id.webpage_favorite_icon_linearlayout)!!
228 val webpageFavoriteIconRadioButton = alertDialog.findViewById<RadioButton>(R.id.webpage_favorite_icon_radiobutton)!!
229 val webpageFavoriteIconImageView = alertDialog.findViewById<ImageView>(R.id.webpage_favorite_icon_imageview)!!
230 customIconLinearLayout = alertDialog.findViewById(R.id.custom_icon_linearlayout)!!
231 val customIconRadioButton = alertDialog.findViewById<RadioButton>(R.id.custom_icon_radiobutton)!!
232 customIconImageView = alertDialog.findViewById(R.id.custom_icon_imageview)!!
233 val browseButton = alertDialog.findViewById<Button>(R.id.browse_button)!!
234 bookmarkNameEditText = alertDialog.findViewById(R.id.bookmark_name_edittext)!!
235 bookmarkUrlEditText = alertDialog.findViewById(R.id.bookmark_url_edittext)!!
236 folderSpinner = alertDialog.findViewById(R.id.bookmark_folder_spinner)!!
237 displayOrderEditText = alertDialog.findViewById(R.id.bookmark_display_order_edittext)!!
238 saveButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE)
240 // Get the current favorite icon byte array from the cursor.
241 val currentIconByteArray = bookmarkCursor.getBlob(bookmarkCursor.getColumnIndexOrThrow(FAVORITE_ICON))
243 // Convert the byte array to a bitmap beginning at the first byte and ending at the last.
244 val currentIconBitmap = BitmapFactory.decodeByteArray(currentIconByteArray, 0, currentIconByteArray.size)
246 // Get the current bookmark values.
247 val currentBookmarkName = bookmarkCursor.getString(bookmarkCursor.getColumnIndexOrThrow(BOOKMARK_NAME))
248 val currentUrl = bookmarkCursor.getString(bookmarkCursor.getColumnIndexOrThrow(BOOKMARK_URL))
249 val currentDisplayOrder = bookmarkCursor.getInt(bookmarkCursor.getColumnIndexOrThrow(DISPLAY_ORDER))
251 // Populate the views.
252 databaseIdTextView.text = bookmarkCursor.getInt(bookmarkCursor.getColumnIndexOrThrow(ID)).toString()
253 currentIconImageView.setImageBitmap(currentIconBitmap)
254 webpageFavoriteIconImageView.setImageBitmap(favoriteIconBitmap)
255 customIconImageView.setImageDrawable(AppCompatResources.getDrawable(requireContext(), R.drawable.world))
256 bookmarkNameEditText.setText(currentBookmarkName)
257 bookmarkUrlEditText.setText(currentUrl)
259 // Create an an array of column names for the matrix cursor comprised of the ID and the name.
260 val matrixCursorColumnNamesArray = arrayOf(ID, BOOKMARK_NAME, PARENT_FOLDER_ID)
262 // Create a matrix cursor based on the column names array.
263 val matrixCursor = MatrixCursor(matrixCursorColumnNamesArray)
265 // Add `Home Folder` as the first entry in the matrix folder.
266 matrixCursor.addRow(arrayOf(HOME_FOLDER_DATABASE_ID, getString(R.string.home_folder), HOME_FOLDER_ID))
268 // Get a cursor with the list of all the folders.
269 val foldersCursor = bookmarksDatabaseHelper.getFoldersExcept(listOf())
271 // Combine the matrix cursor and the folders cursor.
272 val foldersMergeCursor = MergeCursor(arrayOf(matrixCursor, foldersCursor))
274 // Create a resource cursor adapter for the spinner.
275 val foldersCursorAdapter: ResourceCursorAdapter = object: ResourceCursorAdapter(context, R.layout.databaseview_spinner_item, foldersMergeCursor, 0) {
276 override fun bindView(view: View, context: Context, cursor: Cursor) {
277 // Get handles for the spinner views.
278 val subfolderSpacerTextView = view.findViewById<TextView>(R.id.subfolder_spacer_textview)
279 val folderIconImageView = view.findViewById<ImageView>(R.id.folder_icon_imageview)
280 val folderNameTextView = view.findViewById<TextView>(R.id.folder_name_textview)
282 // Populate the subfolder spacer if it is not null (the spinner is open).
283 if (subfolderSpacerTextView != null) {
284 // Indent subfolders.
285 if (cursor.getLong(cursor.getColumnIndexOrThrow(PARENT_FOLDER_ID)) != HOME_FOLDER_ID) { // The folder is not in the home folder.
286 // Get the subfolder spacer.
287 subfolderSpacerTextView.text = bookmarksDatabaseHelper.getSubfolderSpacer(cursor.getLong(cursor.getColumnIndexOrThrow(FOLDER_ID)))
288 } else { // The folder is in the home folder.
289 // Reset the subfolder spacer.
290 subfolderSpacerTextView.text = ""
294 // Set the folder icon according to the type.
295 if (foldersMergeCursor.position == 0) { // The home folder.
296 // Set the gray folder image.
297 folderIconImageView.setImageDrawable(AppCompatResources.getDrawable(context, R.drawable.folder_gray))
298 } else { // A user folder
299 // Get the folder icon byte array.
300 val folderIconByteArray = cursor.getBlob(cursor.getColumnIndexOrThrow(FAVORITE_ICON))
302 // Convert the byte array to a bitmap beginning at the first byte and ending at the last.
303 val folderIconBitmap = BitmapFactory.decodeByteArray(folderIconByteArray, 0, folderIconByteArray.size)
305 // Set the folder icon.
306 folderIconImageView.setImageBitmap(folderIconBitmap)
309 // Set the folder name.
310 folderNameTextView.text = cursor.getString(cursor.getColumnIndexOrThrow(BOOKMARK_NAME))
314 // Set the folder cursor adapter drop drown view resource.
315 foldersCursorAdapter.setDropDownViewResource(R.layout.databaseview_spinner_dropdown_items)
317 // Set the adapter for the folder spinner.
318 folderSpinner.adapter = foldersCursorAdapter
320 // Get the parent folder name.
321 val parentFolderId = bookmarkCursor.getLong(bookmarkCursor.getColumnIndexOrThrow(PARENT_FOLDER_ID))
323 // Select the parent folder in the spinner if the bookmark isn't in the home folder.
324 if (parentFolderId != HOME_FOLDER_ID) {
325 // Get the database ID of the parent folder.
326 val parentFolderDatabaseId = bookmarksDatabaseHelper.getFolderDatabaseId(parentFolderId)
328 // Initialize the parent folder position and the iteration variable.
329 var parentFolderPosition = 0
332 // Find the parent folder position in the folders cursor adapter.
334 if (foldersCursorAdapter.getItemId(i) == parentFolderDatabaseId.toLong()) {
335 // Store the current position for the parent folder.
336 parentFolderPosition = i
338 // Try the next entry.
341 // Stop when the parent folder position is found or all the items in the folders cursor adapter have been checked.
342 } while (parentFolderPosition == 0 && i < foldersCursorAdapter.count)
344 // Select the parent folder in the spinner.
345 folderSpinner.setSelection(parentFolderPosition)
348 // Store the current folder database ID.
349 val currentFolderDatabaseId = folderSpinner.selectedItemId.toInt()
351 // Populate the display order edit text.
352 displayOrderEditText.setText(bookmarkCursor.getInt(bookmarkCursor.getColumnIndexOrThrow(DISPLAY_ORDER)).toString())
354 // Initially disable the save button.
355 saveButton.isEnabled = false
357 // Set the radio button listeners. These perform a click on the linear layout, which contains the necessary logic.
358 currentIconRadioButton.setOnClickListener { currentIconLinearLayout.performClick() }
359 webpageFavoriteIconRadioButton.setOnClickListener { webpageFavoriteIconLinearLayout.performClick() }
360 customIconRadioButton.setOnClickListener { customIconLinearLayout.performClick() }
362 // Set the current icon linear layout click listener.
363 currentIconLinearLayout.setOnClickListener {
364 // Check the current icon radio button.
365 currentIconRadioButton.isChecked = true
367 // Uncheck the other radio buttons.
368 webpageFavoriteIconRadioButton.isChecked = false
369 customIconRadioButton.isChecked = false
371 // Update the save button.
372 updateSaveButton(currentBookmarkName, currentUrl, currentFolderDatabaseId, currentDisplayOrder)
375 // Set the webpage favorite icon linear layout click listener.
376 webpageFavoriteIconLinearLayout.setOnClickListener {
377 // Check the webpage favorite icon radio button.
378 webpageFavoriteIconRadioButton.isChecked = true
380 // Uncheck the other radio buttons.
381 currentIconRadioButton.isChecked = false
382 customIconRadioButton.isChecked = false
384 // Update the save button.
385 updateSaveButton(currentBookmarkName, currentUrl, currentFolderDatabaseId, currentDisplayOrder)
388 // Set the custom icon linear layout click listener.
389 customIconLinearLayout.setOnClickListener {
390 // Check the custom icon radio button.
391 customIconRadioButton.isChecked = true
393 // Uncheck the other radio buttons.
394 currentIconRadioButton.isChecked = false
395 webpageFavoriteIconRadioButton.isChecked = false
397 // Update the save button.
398 updateSaveButton(currentBookmarkName, currentUrl, currentFolderDatabaseId, currentDisplayOrder)
401 browseButton.setOnClickListener {
402 // Open the file picker.
403 browseActivityResultLauncher.launch("image/*")
406 // Update the save button if the bookmark name changes.
407 bookmarkNameEditText.addTextChangedListener(object: TextWatcher {
408 override fun beforeTextChanged(charSequence: CharSequence?, start: Int, count: Int, after: Int) {
412 override fun onTextChanged(charSequence: CharSequence?, start: Int, before: Int, count: Int) {
416 override fun afterTextChanged(editable: Editable?) {
417 // Update the Save button.
418 updateSaveButton(currentBookmarkName, currentUrl, currentFolderDatabaseId, currentDisplayOrder)
422 // Update the save button if the URL changes.
423 bookmarkUrlEditText.addTextChangedListener(object: TextWatcher {
424 override fun beforeTextChanged(charSequence: CharSequence?, start: Int, count: Int, after: Int) {
428 override fun onTextChanged(charSequence: CharSequence?, start: Int, before: Int, count: Int) {
432 override fun afterTextChanged(editable: Editable?) {
433 // Update the save button.
434 updateSaveButton(currentBookmarkName, currentUrl, currentFolderDatabaseId, currentDisplayOrder)
438 // Wait to set the on item selected listener until the spinner has been inflated. Otherwise the dialog will crash on restart.
440 // Update the save button if the folder changes.
441 folderSpinner.onItemSelectedListener = object: OnItemSelectedListener {
442 override fun onItemSelected(parent: AdapterView<*>, view: View, position: Int, id: Long) {
443 // Update the save button.
444 updateSaveButton(currentBookmarkName, currentUrl, currentFolderDatabaseId, currentDisplayOrder)
447 override fun onNothingSelected(parent: AdapterView<*>) {
453 // Update the save button if the display order changes.
454 displayOrderEditText.addTextChangedListener(object: TextWatcher {
455 override fun beforeTextChanged(charSequence: CharSequence?, start: Int, count: Int, after: Int) {
459 override fun onTextChanged(charSequence: CharSequence?, start: Int, before: Int, count: Int) {
463 override fun afterTextChanged(editable: Editable?) {
464 // Update the save button.
465 updateSaveButton(currentBookmarkName, currentUrl, currentFolderDatabaseId, currentDisplayOrder)
469 // Allow the enter key on the keyboard to save the bookmark from the bookmark name edit text.
470 bookmarkNameEditText.setOnKeyListener { _: View, keyCode: Int, keyEvent: KeyEvent ->
471 // Check the key code, event, and button status.
472 if (keyEvent.action == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER && saveButton.isEnabled) { // The enter key was pressed and the save button is enabled.
473 // Trigger the listener and return the dialog fragment to the parent activity.
474 editBookmarkDatabaseViewListener.saveBookmark(this, bookmarkDatabaseId)
476 // Manually dismiss the alert dialog.
477 alertDialog.dismiss()
479 // Consume the event.
480 return@setOnKeyListener true
481 } else { // If any other key was pressed, or if the save button is currently disabled, do not consume the event.
482 return@setOnKeyListener false
486 // Allow the enter key on the keyboard to save the bookmark from the URL edit text.
487 bookmarkUrlEditText.setOnKeyListener { _: View, keyCode: Int, keyEvent: KeyEvent ->
488 // Check the key code, event, and button status.
489 if (keyEvent.action == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER && saveButton.isEnabled) { // The enter key was pressed and the save button is enabled.
490 // Trigger the listener and return the dialog fragment to the parent activity.
491 editBookmarkDatabaseViewListener.saveBookmark(this, bookmarkDatabaseId)
493 // Manually dismiss the alert dialog.
494 alertDialog.dismiss()
496 // Consume the event.
497 return@setOnKeyListener true
498 } else { // If any other key was pressed, or if the save button is currently disabled, do not consume the event.
499 return@setOnKeyListener false
503 // Allow the enter key on the keyboard to save the bookmark from the display order edit text.
504 displayOrderEditText.setOnKeyListener { _: View, keyCode: Int, keyEvent: KeyEvent ->
505 // Check the key code, event, and button status.
506 if (keyEvent.action == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER && saveButton.isEnabled) { // The enter key was pressed and the save button is enabled.
507 // Trigger the listener and return the dialog fragment to the parent activity.
508 editBookmarkDatabaseViewListener.saveBookmark(this, bookmarkDatabaseId)
510 // Manually dismiss the alert dialog.
511 alertDialog.dismiss()
513 // Consume the event.
514 return@setOnKeyListener true
515 } else { // If any other key was pressed, or if the save button is currently disabled, do not consume the event.
516 return@setOnKeyListener false
520 // Return the alert dialog.
524 private fun updateSaveButton(currentBookmarkName: String, currentUrl: String, currentFolderDatabaseId: Int, currentDisplayOrder: Int) {
525 // Get the values from the dialog.
526 val newName = bookmarkNameEditText.text.toString()
527 val newUrl = bookmarkUrlEditText.text.toString()
528 val newFolderDatabaseId = folderSpinner.selectedItemId.toInt()
529 val newDisplayOrder = displayOrderEditText.text.toString()
531 // Has the favorite icon changed?
532 val iconChanged = !currentIconRadioButton.isChecked
534 // Has the name changed?
535 val nameChanged = (newName != currentBookmarkName)
537 // Has the URL changed?
538 val urlChanged = (newUrl != currentUrl)
540 // Has the folder changed?
541 val folderChanged = (newFolderDatabaseId != currentFolderDatabaseId)
543 // Has the display order changed?
544 val displayOrderChanged = (newDisplayOrder != currentDisplayOrder.toString())
546 // Is the display order empty?
547 val displayOrderNotEmpty = newDisplayOrder.isNotEmpty()
549 // Update the enabled status of the save button.
550 saveButton.isEnabled = (iconChanged || nameChanged || urlChanged || folderChanged || displayOrderChanged) && displayOrderNotEmpty