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.app.Dialog
23 import android.content.Context
24 import android.content.DialogInterface
25 import android.content.Intent
26 import android.os.Bundle
27 import android.text.Editable
28 import android.text.TextWatcher
29 import android.view.WindowManager
30 import android.widget.Button
31 import android.widget.EditText
33 import androidx.appcompat.app.AlertDialog
34 import androidx.fragment.app.DialogFragment
35 import androidx.preference.PreferenceManager
37 import com.stoutner.privacybrowser.R
39 // Define 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 // Define 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 new dialog.
79 saveDialog.arguments = argumentsBundle
81 // Return the new dialog.
86 override fun onCreateDialog(savedInstanceState: Bundle?): Dialog {
87 // Get the arguments from the bundle.
88 val saveType = requireArguments().getInt(SAVE_TYPE)
90 // Use an alert dialog builder to create the alert dialog.
91 val dialogBuilder = AlertDialog.Builder(requireContext(), R.style.PrivacyBrowserAlertDialog)
93 // Set the title and the icon according to the save type.
97 dialogBuilder.setTitle(R.string.save_logcat)
99 // Set the icon according to the theme.
100 dialogBuilder.setIconAttribute(R.attr.saveBlueIcon)
103 SAVE_ABOUT_VERSION_TEXT -> {
105 dialogBuilder.setTitle(R.string.save_text)
107 // Set the icon according to the theme.
108 dialogBuilder.setIconAttribute(R.attr.saveTextBlueIcon)
111 SAVE_ABOUT_VERSION_IMAGE -> {
113 dialogBuilder.setTitle(R.string.save_image)
115 // Set the icon according to the theme.
116 dialogBuilder.setIconAttribute(R.attr.imagesBlueIcon)
121 dialogBuilder.setView(R.layout.save_dialog)
123 // Set the cancel button listener. Using `null` as the listener closes the dialog without doing anything else.
124 dialogBuilder.setNegativeButton(R.string.cancel, null)
126 // Set the save button listener.
127 dialogBuilder.setPositiveButton(R.string.save) { _: DialogInterface?, _: Int ->
128 // Return the dialog fragment to the parent activity.
129 saveListener.onSave(saveType, this)
132 // Create an alert dialog from the builder.
133 val alertDialog = dialogBuilder.create()
135 // Get a handle for the shared preferences.
136 val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context)
138 // Get the screenshot preference.
139 val allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false)
141 // Disable screenshots if not allowed.
142 if (!allowScreenshots) {
143 alertDialog.window!!.addFlags(WindowManager.LayoutParams.FLAG_SECURE)
146 // The alert dialog must be shown before items in the layout can be modified.
149 // Get handles for the layout items.
150 val fileNameEditText = alertDialog.findViewById<EditText>(R.id.file_name_edittext)!!
151 val browseButton = alertDialog.findViewById<Button>(R.id.browse_button)!!
152 val saveButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE)
154 // Initially disable the save button.
155 saveButton.isEnabled = false
157 // Update the status of the save button when the file name changes.
158 fileNameEditText.addTextChangedListener(object : TextWatcher {
159 override fun beforeTextChanged(s: CharSequence, start: Int, count: Int, after: Int) {
163 override fun onTextChanged(s: CharSequence, start: Int, before: Int, count: Int) {
167 override fun afterTextChanged(s: Editable) {
168 // Get the current file name.
169 val fileNameString = fileNameEditText.text.toString()
171 // Enable the save button if the file name is populated.
172 saveButton.isEnabled = fileNameString.isNotEmpty()
176 // Set the file name according to the type.
178 SAVE_LOGCAT -> fileName = getString(R.string.privacy_browser_logcat_txt)
179 SAVE_ABOUT_VERSION_TEXT -> fileName = getString(R.string.privacy_browser_version_txt)
180 SAVE_ABOUT_VERSION_IMAGE -> fileName = getString(R.string.privacy_browser_version_png)
183 // Handle clicks on the browse button.
184 browseButton.setOnClickListener {
185 // Create the file picker intent.
186 val browseIntent = Intent(Intent.ACTION_CREATE_DOCUMENT)
188 // Set the intent MIME type to include all files so that everything is visible.
189 browseIntent.type = "*/*"
191 // Set the initial file name.
192 browseIntent.putExtra(Intent.EXTRA_TITLE, fileName)
194 // Request a file that can be opened.
195 browseIntent.addCategory(Intent.CATEGORY_OPENABLE)
197 // 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.
198 requireActivity().startActivityForResult(browseIntent, 0)
201 // Return the alert dialog.