X-Git-Url: https://gitweb.stoutner.com/?a=blobdiff_plain;ds=sidebyside;f=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fdialogs%2FFontSizeDialog.java;fp=app%2Fsrc%2Fmain%2Fjava%2Fcom%2Fstoutner%2Fprivacybrowser%2Fdialogs%2FFontSizeDialog.java;h=2349189c2909118d120fedb484c28990d524a8fd;hb=ca7516a7edb9e06d0f9fe9186513986cd82be716;hp=0000000000000000000000000000000000000000;hpb=c4856b8be94ffa3f6075969967d61174dcc1a7ee;p=PrivacyBrowserAndroid.git diff --git a/app/src/main/java/com/stoutner/privacybrowser/dialogs/FontSizeDialog.java b/app/src/main/java/com/stoutner/privacybrowser/dialogs/FontSizeDialog.java new file mode 100644 index 00000000..2349189c --- /dev/null +++ b/app/src/main/java/com/stoutner/privacybrowser/dialogs/FontSizeDialog.java @@ -0,0 +1,182 @@ +/* + * Copyright © 2019 Soren Stoutner . + * + * This file is part of 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 . + */ + +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; + } +}