2 * Copyright © 2016-2023 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.graphics.Bitmap
26 import android.graphics.BitmapFactory
27 import android.os.Bundle
28 import android.text.Editable
29 import android.text.TextWatcher
30 import android.view.KeyEvent
31 import android.view.View
32 import android.view.WindowManager
33 import android.widget.EditText
34 import android.widget.ImageView
35 import android.widget.LinearLayout
36 import android.widget.RadioButton
38 import androidx.appcompat.app.AlertDialog
39 import androidx.fragment.app.DialogFragment
40 import androidx.preference.PreferenceManager
42 import com.stoutner.privacybrowser.R
44 import java.io.ByteArrayOutputStream
46 // Define the class constants.
47 private const val FAVORITE_ICON_BYTE_ARRAY = "favorite_icon_byte_array"
49 class CreateBookmarkFolderDialog : DialogFragment() {
51 fun createBookmarkFolder(favoriteIconBitmap: Bitmap): CreateBookmarkFolderDialog {
52 // Create a favorite icon byte array output stream.
53 val favoriteIconByteArrayOutputStream = ByteArrayOutputStream()
55 // 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).
56 favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, favoriteIconByteArrayOutputStream)
58 // Convert the byte array output stream to a byte array.
59 val favoriteIconByteArray = favoriteIconByteArrayOutputStream.toByteArray()
61 // Create an arguments bundle.
62 val argumentsBundle = Bundle()
64 // Store the favorite icon in the bundle.
65 argumentsBundle.putByteArray(FAVORITE_ICON_BYTE_ARRAY, favoriteIconByteArray)
67 // Create a new instance of the dialog.
68 val createBookmarkFolderDialog = CreateBookmarkFolderDialog()
70 // Add the bundle to the dialog.
71 createBookmarkFolderDialog.arguments = argumentsBundle
73 // Return the new dialog.
74 return createBookmarkFolderDialog
78 // Declare the class variables.
79 private lateinit var createBookmarkFolderListener: CreateBookmarkFolderListener
81 // The public interface is used to send information back to the parent activity.
82 interface CreateBookmarkFolderListener {
83 fun createBookmarkFolder(dialogFragment: DialogFragment, favoriteIconBitmap: Bitmap)
86 override fun onAttach(context: Context) {
87 // Run the default commands.
88 super.onAttach(context)
90 // Get a handle for the create bookmark folder listener from the launching context.
91 createBookmarkFolderListener = context as CreateBookmarkFolderListener
94 override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
96 val arguments = requireArguments()
98 // Get the favorite icon byte array.
99 val favoriteIconByteArray = arguments.getByteArray(FAVORITE_ICON_BYTE_ARRAY)!!
101 // Convert the favorite icon byte array to a bitmap.
102 val favoriteIconBitmap = BitmapFactory.decodeByteArray(favoriteIconByteArray, 0, favoriteIconByteArray.size)
104 // Use an alert dialog builder to create the dialog.
105 val dialogBuilder = AlertDialog.Builder(requireContext(), R.style.PrivacyBrowserAlertDialog)
108 dialogBuilder.setTitle(R.string.create_folder)
111 dialogBuilder.setView(R.layout.create_bookmark_folder_dialog)
113 // Set a listener on the cancel button. Using `null` as the listener closes the dialog without doing anything else.
114 dialogBuilder.setNegativeButton(R.string.cancel, null)
116 // Set the create button listener.
117 dialogBuilder.setPositiveButton(R.string.create) { _: DialogInterface, _: Int ->
118 // Return the dialog fragment to the parent activity on create.
119 createBookmarkFolderListener.createBookmarkFolder(this, favoriteIconBitmap)
122 // Create an alert dialog from the builder.
123 val alertDialog = dialogBuilder.create()
125 // Get a handle for the shared preferences.
126 val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(requireContext())
128 // Get the screenshot preference.
129 val allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false)
131 // Disable screenshots if not allowed.
132 if (!allowScreenshots) {
133 alertDialog.window!!.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
136 // Display the keyboard.
137 alertDialog.window!!.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE)
139 // The alert dialog must be shown before the content can be modified.
142 // Get handles for the views in the dialog.
143 val defaultIconLinearLayout = alertDialog.findViewById<LinearLayout>(R.id.default_icon_linearlayout)!!
144 val defaultIconRadioButton = alertDialog.findViewById<RadioButton>(R.id.default_icon_radiobutton)!!
145 val webpageFavoriteIconLinearLayout = alertDialog.findViewById<LinearLayout>(R.id.webpage_favorite_icon_linearlayout)!!
146 val webpageFavoriteIconRadioButton = alertDialog.findViewById<RadioButton>(R.id.webpage_favorite_icon_radiobutton)!!
147 val webpageFavoriteIconImageView = alertDialog.findViewById<ImageView>(R.id.webpage_favorite_icon_imageview)!!
148 val folderNameEditText = alertDialog.findViewById<EditText>(R.id.folder_name_edittext)!!
149 val createButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE)
151 // Display the current favorite icon.
152 webpageFavoriteIconImageView.setImageBitmap(favoriteIconBitmap)
154 // Initially disable the create button.
155 createButton.isEnabled = false
157 // Set the radio button listeners. These perform a click on the linear layout, which contains the necessary logic.
158 defaultIconRadioButton.setOnClickListener { defaultIconLinearLayout.performClick() }
159 webpageFavoriteIconRadioButton.setOnClickListener { webpageFavoriteIconLinearLayout.performClick() }
161 // Set the default icon linear layout click listener.
162 defaultIconLinearLayout.setOnClickListener {
163 // Check the default icon radio button.
164 defaultIconRadioButton.isChecked = true
166 // Uncheck the webpage favorite icon radio button.
167 webpageFavoriteIconRadioButton.isChecked = false
170 // Set the webpage favorite icon linear layout click listener.
171 webpageFavoriteIconLinearLayout.setOnClickListener {
172 // Check the webpage favorite icon radio button.
173 webpageFavoriteIconRadioButton.isChecked = true
175 // Uncheck the default icon radio button.
176 defaultIconRadioButton.isChecked = false
179 // Enable the create button if the folder name is populated.
180 folderNameEditText.addTextChangedListener(object: TextWatcher {
181 override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {
185 override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
189 override fun afterTextChanged(editable: Editable) {
190 // Convert the current text to a string.
191 val folderName = editable.toString()
193 // Enable the create button if the new folder name is not empty.
194 createButton.isEnabled = folderName.isNotEmpty()
198 // Set the enter key on the keyboard to create the folder from the edit text.
199 folderNameEditText.setOnKeyListener { _: View?, keyCode: Int, keyEvent: KeyEvent ->
200 // Check the key code, event, and button status.
201 if (keyEvent.action == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER && createButton.isEnabled) { // The event is a key-down on the enter key and the create button is enabled.
202 // Trigger the create bookmark folder listener and return the dialog fragment to the parent activity.
203 createBookmarkFolderListener.createBookmarkFolder(this, favoriteIconBitmap)
205 // Manually dismiss the alert dialog.
206 alertDialog.dismiss()
208 // Consume the event.
209 return@setOnKeyListener true
210 } else { // Some other key was pressed or the create button is disabled.
211 return@setOnKeyListener false
215 // Return the alert dialog.