/* * Copyright © 2019-2022 Soren Stoutner . * * This file is part of Privacy Browser Android . * * Privacy Browser Android is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Privacy Browser Android is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with Privacy Browser Android. If not, see . */ package com.stoutner.privacybrowser.dialogs import android.app.Dialog import android.content.Context import android.content.DialogInterface import android.os.Bundle import android.view.KeyEvent import android.view.View import android.view.WindowManager import android.widget.EditText import androidx.appcompat.app.AlertDialog import androidx.fragment.app.DialogFragment import androidx.preference.PreferenceManager import com.stoutner.privacybrowser.R // Define the class constants. private const val FONT_SIZE = "font_size" class FontSizeDialog : DialogFragment() { // Declare the class variables. private lateinit var updateFontSizeListener: UpdateFontSizeListener // The public interface is used to send information back to the parent activity. interface UpdateFontSizeListener { fun onApplyNewFontSize(dialogFragment: DialogFragment?) } override fun onAttach(context: Context) { // Run the default commands. super.onAttach(context) // Get a handle for the update font size listener from the launching context. updateFontSizeListener = context as UpdateFontSizeListener } companion object { // `@JvmStatic` will no longer be required once all the code has transitioned to Kotlin. @JvmStatic fun displayDialog(fontSize: Int): FontSizeDialog { // Create an arguments bundle. val argumentsBundle = Bundle() // Store the font size in the bundle. argumentsBundle.putInt(FONT_SIZE, fontSize) // Create a new instance of the dialog. val fontSizeDialog = FontSizeDialog() // Add the bundle to the dialog. fontSizeDialog.arguments = argumentsBundle // Return the new dialog. return fontSizeDialog } } override fun onCreateDialog(savedInstanceState: Bundle?): Dialog { // Get the current font size from the arguments. val currentFontSize = requireArguments().getInt(FONT_SIZE) // Use a builder to create the alert dialog. val dialogBuilder = AlertDialog.Builder(requireContext(), R.style.PrivacyBrowserAlertDialog) // Set the icon according to the theme. dialogBuilder.setIconAttribute(R.attr.fontSizeBlueIcon) // Set the title. dialogBuilder.setTitle(R.string.font_size) // Set the view. dialogBuilder.setView(R.layout.font_size_dialog) // Set the close button listener. Using `null` as the listener closes the dialog without doing anything else. dialogBuilder.setNegativeButton(R.string.close, null) // Set the apply button listener. dialogBuilder.setPositiveButton(R.string.apply) { _: DialogInterface?, _: Int -> // Return the dialog fragment to the parent activity. updateFontSizeListener.onApplyNewFontSize(this) } // Create an alert dialog from the builder. val alertDialog = dialogBuilder.create() // Get the alert dialog window. val dialogWindow = alertDialog.window!! // Get a handle for the shared preferences. val sharedPreferences = PreferenceManager.getDefaultSharedPreferences(requireContext()) // Get the screenshot preferences. val allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false) // Disable screenshots if not allowed. if (!allowScreenshots) { dialogWindow.addFlags(WindowManager.LayoutParams.FLAG_SECURE) } // Display the keyboard. dialogWindow.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_VISIBLE) // The alert dialog must be shown before items in the layout can be modified. alertDialog.show() // Get a handle for the font size edit text. val fontSizeEditText = alertDialog.findViewById(R.id.font_size_edittext)!! // Display the current font size. fontSizeEditText.setText(currentFontSize.toString()) // Request focus on the font size edit text. fontSizeEditText.requestFocus() // Set the enter key on the keyboard to update the font size. fontSizeEditText.setOnKeyListener { _: View?, keyCode: Int, keyEvent: KeyEvent -> // Check the key code, event, and button status. if (keyEvent.action == KeyEvent.ACTION_DOWN && keyCode == KeyEvent.KEYCODE_ENTER) { // The enter key was pressed. // Trigger the update font size listener and return the dialog fragment to the parent activity. updateFontSizeListener.onApplyNewFontSize(this) // Manually dismiss the alert dialog. alertDialog.dismiss() //Consume the event. return@setOnKeyListener true } else { // If any other key was pressed do not consume the event. return@setOnKeyListener false } } // Return the alert dialog. return alertDialog } }