2 * Copyright © 2015-2018 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.annotation.SuppressLint;
23 import android.app.AlertDialog;
24 import android.app.Dialog;
25 import android.content.Context;
26 import android.content.DialogInterface;
27 import android.graphics.drawable.BitmapDrawable;
28 import android.graphics.drawable.Drawable;
29 import android.os.Bundle;
30 import android.support.annotation.NonNull;
31 // We have to use `AppCompatDialogFragment` instead of `DialogFragment` or an error is produced on API <=22.
32 import android.support.v7.app.AppCompatDialogFragment;
33 import android.view.KeyEvent;
34 import android.view.LayoutInflater;
35 import android.view.View;
36 import android.view.WindowManager;
37 import android.widget.EditText;
39 import com.stoutner.privacybrowser.activities.MainWebViewActivity;
40 import com.stoutner.privacybrowser.R;
42 public class CreateHomeScreenShortcutDialog extends AppCompatDialogFragment {
43 // The public interface is used to send information back to the parent activity.
44 public interface CreateHomeScreenShortcutListener {
45 void onCreateHomeScreenShortcut(AppCompatDialogFragment dialogFragment);
48 //`createHomeScreenShortcutListener` is used in `onAttach()` and `onCreateDialog()`.
49 private CreateHomeScreenShortcutListener createHomeScreenShortcutListener;
51 // Check to make sure that the parent activity implements the listener.
52 public void onAttach(Context context) {
53 super.onAttach(context);
55 createHomeScreenShortcutListener = (CreateHomeScreenShortcutListener) context;
56 } catch(ClassCastException exception) {
57 throw new ClassCastException(context.toString() + " must implement CreateHomeScreenShortcutListener.");
61 // `@SuppressLing("InflateParams")` removes the warning about using `null` as the parent view group when inflating the `AlertDialog`.
62 @SuppressLint("InflateParams")
65 public Dialog onCreateDialog(Bundle savedInstanceState) {
66 // Remove the incorrect lint warning below that `getLayoutInflater()` might be null.
67 assert getActivity() != null;
69 // Get the activity's layout inflater.
70 LayoutInflater layoutInflater = getActivity().getLayoutInflater();
72 // Create a drawable version of the favorite icon.
73 Drawable favoriteIconDrawable = new BitmapDrawable(getResources(), MainWebViewActivity.favoriteIconBitmap);
75 // Use `AlertDialog.Builder` to create the `AlertDialog`.
76 AlertDialog.Builder dialogBuilder;
78 // Set the style according to the theme.
79 if (MainWebViewActivity.darkTheme) {
80 dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogDark);
82 dialogBuilder = new AlertDialog.Builder(getActivity(), R.style.PrivacyBrowserAlertDialogLight);
85 // Set the title and icon.
86 dialogBuilder.setTitle(R.string.create_shortcut);
87 dialogBuilder.setIcon(favoriteIconDrawable);
89 // Set the view. The parent view is null because it will be assigned by the alert dialog.
90 dialogBuilder.setView(layoutInflater.inflate(R.layout.create_home_screen_shortcut_dialog, null));
92 // Setup the negative button. Using null closes the dialog without doing anything else.
93 dialogBuilder.setNegativeButton(R.string.cancel, null);
95 // Set an `onClick` listener on the positive button.
96 dialogBuilder.setPositiveButton(R.string.create, (DialogInterface dialog, int which) -> createHomeScreenShortcutListener.onCreateHomeScreenShortcut(CreateHomeScreenShortcutDialog.this));
98 // Create an alert dialog from the alert dialog builder.
99 final AlertDialog alertDialog = dialogBuilder.create();
101 // Remove the warning below that `getWindow()` might be null.
102 assert alertDialog.getWindow() != null;
104 // Disable screenshots if not allowed.
105 if (!MainWebViewActivity.allowScreenshots) {
106 alertDialog.getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
109 // Show the keyboard when the Dialog is displayed on the screen.
110 alertDialog.getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_ALWAYS_VISIBLE);
112 // We need to show the alert dialog before we can call `setOnKeyListener()` below.
115 // Get a handle for `shortcut_name_edittext`.
116 EditText shortcutNameEditText = alertDialog.findViewById(R.id.shortcut_name_edittext);
118 // Set the current `WebView` title as the text for `shortcutNameEditText`.
119 shortcutNameEditText.setText(MainWebViewActivity.webViewTitle);
121 // Allow the "enter" key on the keyboard to create the shortcut.
122 shortcutNameEditText.setOnKeyListener((View v, int keyCode, KeyEvent event) -> {
123 // If the event is a key-down on the "enter" button, select the PositiveButton "Create".
124 if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
125 // Trigger the create listener.
126 createHomeScreenShortcutListener.onCreateHomeScreenShortcut(CreateHomeScreenShortcutDialog.this);
128 // Manually dismiss `alertDialog`.
129 alertDialog.dismiss();
131 // Consume the event.
133 } else { // If any other key was pressed, do not consume the event.
138 // `onCreateDialog` requires the return of an `AlertDialog`.