--- /dev/null
+/*
+ * Copyright © 2019-2020 Soren Stoutner <soren@stoutner.com>.
+ *
+ * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
+ *
+ * Privacy Browser 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 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. If not, see <http://www.gnu.org/licenses/>.
+ */
+package com.stoutner.privacybrowser.dialogs
+
+import android.annotation.SuppressLint
+import android.app.Dialog
+import android.content.Context
+import android.content.DialogInterface
+import android.content.res.Configuration
+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
+
+// Declare the class constants.
+private const val FONT_SIZE = "font_size"
+
+class FontSizeDialog: DialogFragment() {
+ // The public interface is used to send information back to the parent activity.
+ interface UpdateFontSizeListener {
+ fun onApplyNewFontSize(dialogFragment: DialogFragment?)
+ }
+
+ // Declare the class variables.
+ private lateinit var updateFontSizeListener: UpdateFontSizeListener
+
+ 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. Also, the function can then be moved out of a companion object and just become a package-level function.
+ @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
+ }
+ }
+
+ // `@SuppressLint("InflateParams")` removes the warning about using null as the parent view group when inflating the alert dialog.
+ @SuppressLint("InflateParams")
+ 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)
+
+ // Get the current theme status.
+ val currentThemeStatus = resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK
+
+ // Set the icon according to the theme.
+ if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
+ dialogBuilder.setIcon(R.drawable.font_size_day)
+ } else {
+ dialogBuilder.setIcon(R.drawable.font_size_night)
+ }
+
+ // Set the title.
+ dialogBuilder.setTitle(R.string.font_size)
+
+ // Set the view. The parent view is null because it will be assigned by the alert dialog.
+ dialogBuilder.setView(requireActivity().layoutInflater.inflate(R.layout.font_size_dialog, null))
+
+ // 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(context)
+
+ // 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<EditText>(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
+ }
+}
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projects / PrivacyBrowserAndroid.git / blobdiff