--- /dev/null
+/*
+ * Copyright © 2019 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.Activity;
+import android.app.AlertDialog;
+import android.app.Dialog;
+import android.content.Context;
+import android.content.DialogInterface;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.Window;
+import android.view.WindowManager;
+import android.widget.EditText;
+
+import androidx.annotation.NonNull;
+import androidx.fragment.app.DialogFragment;
+import androidx.preference.PreferenceManager;
+
+import com.stoutner.privacybrowser.R;
+
+public class FontSizeDialog extends DialogFragment {
+ // Define the update font size listener.
+ private UpdateFontSizeListener updateFontSizeListener;
+
+ // The public interface is used to send information back to the parent activity.
+ public interface UpdateFontSizeListener {
+ void onApplyNewFontSize(DialogFragment dialogFragment);
+ }
+
+ @Override
+ public void onAttach(@NonNull Context context) {
+ // Run the default commands.
+ super.onAttach(context);
+
+ // Get a handle for the update font size listener from the launching context.
+ updateFontSizeListener = (UpdateFontSizeListener) context;
+ }
+
+ public static FontSizeDialog displayDialog(int fontSize) {
+ // Create an arguments bundle.
+ Bundle argumentsBundle = new Bundle();
+
+ // Store the font size in the bundle.
+ argumentsBundle.putInt("font_size", fontSize);
+
+ // Create a new instance of the dialog.
+ FontSizeDialog fontSizeDialog = new FontSizeDialog();
+
+ // Add the bundle to the dialog.
+ fontSizeDialog.setArguments(argumentsBundle);
+
+ // Return the new dialog.
+ return fontSizeDialog;
+ }
+
+ // `@SuppressLing("InflateParams")` removes the warning about using null as the parent view group when inflating the alert dialog.
+ @SuppressLint("InflateParams")
+ @Override
+ @NonNull
+ public Dialog onCreateDialog(Bundle savedInstanceState) {
+ // Get a handle for the activity and the context.
+ Activity activity = getActivity();
+ Context context = getContext();
+
+ // Remove the incorrect lint warnings below that the activity and context might be null.
+ assert activity != null;
+ assert context != null;
+
+ // Use a builder to create the alert dialog.
+ AlertDialog.Builder dialogBuilder;
+
+ // Get the arguments.
+ Bundle arguments = getArguments();
+
+ // Remove the incorrect lint warning below that `getInt()` might be null.
+ assert arguments != null;
+
+ // Get the current font size.
+ int currentFontSize = arguments.getInt("font_size");
+
+ // Get a handle for the shared preferences.
+ SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(context);
+
+ // Get the screenshot and theme preferences.
+ boolean darkTheme = sharedPreferences.getBoolean("dark_theme", false);
+ boolean allowScreenshots = sharedPreferences.getBoolean("allow_screenshots", false);
+
+ // Set the style and icon according to the theme.
+ if (darkTheme) {
+ dialogBuilder = new AlertDialog.Builder(activity, R.style.PrivacyBrowserAlertDialogDark);
+ dialogBuilder.setIcon(R.drawable.font_size_dark);
+ } else {
+ dialogBuilder = new AlertDialog.Builder(activity, R.style.PrivacyBrowserAlertDialogLight);
+ dialogBuilder.setIcon(R.drawable.font_size_light);
+ }
+
+ // 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(activity.getLayoutInflater().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 dialog, int which) -> {
+ // Return the dialog fragment to the parent activity.
+ updateFontSizeListener.onApplyNewFontSize(this);
+ });
+
+ // Create an alert dialog from the builder.
+ AlertDialog alertDialog = dialogBuilder.create();
+
+ // Get the alert dialog window.
+ Window dialogWindow = alertDialog.getWindow();
+
+ // Remove the incorrect lint warning below that the dialog window might be null.
+ assert dialogWindow != null;
+
+ // 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.
+ EditText fontSizeEditText = alertDialog.findViewById(R.id.font_size_edittext);
+
+ // Display the current font size.
+ fontSizeEditText.setText(String.valueOf(currentFontSize));
+
+ // 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 view, int keyCode, KeyEvent keyEvent) -> {
+ // If the key event is a key-down on the `enter` key apply the new font size.
+ if ((keyEvent.getAction() == 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 true;
+ } else { // If any other key was pressed do not consume the event.
+ return false;
+ }
+ });
+
+ // Return the alert dialog.
+ return alertDialog;
+ }
+}
projects / PrivacyBrowserAndroid.git / blobdiff