2 * Copyright © 2016-2021 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.content.Intent
27 import android.content.res.Configuration
28 import android.os.Bundle
29 import android.text.Editable
30 import android.text.TextWatcher
31 import android.view.WindowManager
32 import android.widget.Button
33 import android.widget.EditText
34 import androidx.appcompat.app.AlertDialog
35 import androidx.fragment.app.DialogFragment
36 import androidx.preference.PreferenceManager
37 import com.stoutner.privacybrowser.R
39 // Declare the class constants.
40 private const val SAVE_TYPE = "save_type"
42 class SaveDialog : DialogFragment() {
43 // Declare the class variables.
44 private lateinit var saveListener: SaveListener
45 private lateinit var fileName: String
47 // The public interface is used to send information back to the parent activity.
48 interface SaveListener {
49 fun onSave(saveType: Int, dialogFragment: DialogFragment)
52 override fun onAttach(context: Context) {
53 // Run the default commands.
54 super.onAttach(context)
56 // Get a handle for the save listener from the launching context.
57 saveListener = context as SaveListener
61 // Declare the companion object constants. These can be moved to class constants once all of the code has transitioned to Kotlin.
62 const val SAVE_LOGCAT = 0
63 const val SAVE_ABOUT_VERSION_TEXT = 1
64 const val SAVE_ABOUT_VERSION_IMAGE = 2
66 // `@JvmStatic` will no longer be required once all the code has transitioned to Kotlin.
68 fun save(saveType: Int): SaveDialog {
69 // Create an arguments bundle.
70 val argumentsBundle = Bundle()
72 // Store the arguments in the bundle.
73 argumentsBundle.putInt(SAVE_TYPE, saveType)
75 // Create a new instance of the save dialog.
76 val saveDialog = SaveDialog()
78 // Add the arguments bundle to the dialog.
79 saveDialog.arguments = argumentsBundle
81 // Return the new dialog.
86 // `@SuppressLint("InflateParams")` removes the warning about using null as the parent view group when inflating the alert dialog.
87 @SuppressLint("InflateParams")
88 override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
89 // Get the arguments from the bundle.
90 val saveType = requireArguments().getInt(SAVE_TYPE)
92 // Use an alert dialog builder to create the alert dialog.
93 val dialogBuilder = AlertDialog.Builder(requireContext(), R.style.PrivacyBrowserAlertDialog)
95 // Get the current theme status.
96 val currentThemeStatus = resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK
98 // Set the title and the icon according to the save type.
102 dialogBuilder.setTitle(R.string.save_logcat)
104 // Set the icon according to the theme.
105 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
106 dialogBuilder.setIcon(R.drawable.save_dialog_day)
108 dialogBuilder.setIcon(R.drawable.save_dialog_night)
112 SAVE_ABOUT_VERSION_TEXT -> {
114 dialogBuilder.setTitle(R.string.save_text)
116 // Set the icon according to the theme.
117 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
118 dialogBuilder.setIcon(R.drawable.save_text_blue_day)
120 dialogBuilder.setIcon(R.drawable.save_text_blue_night)
124 SAVE_ABOUT_VERSION_IMAGE -> {
126 dialogBuilder.setTitle(R.string.save_image)
128 // Set the icon according to the theme.
129 if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
130 dialogBuilder.setIcon(R.drawable.images_enabled_day)
132 dialogBuilder.setIcon(R.drawable.images_enabled_night)
137 // Set the view. The parent view is null because it will be assigned by the alert dialog.
138 dialogBuilder.setView(requireActivity().layoutInflater.inflate(R.layout.save_dialog, null))
140 // Set the cancel button listener. Using `null` as the listener closes the dialog without doing anything else.
141 dialogBuilder.setNegativeButton(R.string.cancel, null)
143 // Set the save button listener.
144 dialogBuilder.setPositiveButton(R.string.save) { _: DialogInterface?, _: Int ->
145 // Return the dialog fragment to the parent activity.
146 saveListener.onSave(saveType, this)
149 // Create an alert dialog from the builder.
150 val alertDialog = dialogBuilder.create()
152 // Get a handle for the shared preferences.
153 val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
155 // Get the screenshot preference.
156 val allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false)
158 // Disable screenshots if not allowed.
159 if (!allowScreenshots) {
160 alertDialog.window!!.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
163 // The alert dialog must be shown before items in the layout can be modified.
166 // Get handles for the layout items.
167 val fileNameEditText = alertDialog.findViewById<EditText>(R.id.file_name_edittext)!!
168 val browseButton = alertDialog.findViewById<Button>(R.id.browse_button)!!
169 val saveButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE)
171 // Initially disable the save button.
172 saveButton.isEnabled = false
174 // Update the status of the save button when the file name changes.
175 fileNameEditText.addTextChangedListener(object : TextWatcher {
176 override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {
180 override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
184 override fun afterTextChanged(s: Editable) {
185 // Get the current file name.
186 val fileNameString = fileNameEditText.text.toString()
188 // Enable the save button if the file name is populated.
189 saveButton.isEnabled = fileNameString.isNotEmpty()
193 // Set the file name according to the type.
195 SAVE_LOGCAT -> fileName = getString(R.string.privacy_browser_logcat_txt)
196 SAVE_ABOUT_VERSION_TEXT -> fileName = getString(R.string.privacy_browser_version_txt)
197 SAVE_ABOUT_VERSION_IMAGE -> fileName = getString(R.string.privacy_browser_version_png)
200 // Handle clicks on the browse button.
201 browseButton.setOnClickListener {
202 // Create the file picker intent.
203 val browseIntent = Intent(Intent.ACTION_CREATE_DOCUMENT)
205 // Set the intent MIME type to include all files so that everything is visible.
206 browseIntent.type = "*/*"
208 // Set the initial file name.
209 browseIntent.putExtra(Intent.EXTRA_TITLE, fileName)
211 // Request a file that can be opened.
212 browseIntent.addCategory(Intent.CATEGORY_OPENABLE)
214 // Launch the file picker. There is only one `startActivityForResult()`, so the request code is simply set to 0, but it must be run under `activity` so the response is processed correctly.
215 requireActivity().startActivityForResult(browseIntent, 0)
218 // Return the alert dialog.