]> gitweb.stoutner.com Git - PrivacyBrowserAndroid.git/blobdiff - app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java
Create Java subpackage folders.
[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / MainWebViewActivity.java
diff --git a/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java b/app/src/main/java/com/stoutner/privacybrowser/MainWebViewActivity.java
deleted file mode 100644 (file)
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+++ /dev/null
@@ -1,1564 +0,0 @@
-/**
- * Copyright 2015-2016 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;
-
-import android.annotation.SuppressLint;
-import android.app.DialogFragment;
-import android.app.DownloadManager;
-import android.content.Context;
-import android.content.Intent;
-import android.content.SharedPreferences;
-import android.content.res.Configuration;
-import android.graphics.Bitmap;
-import android.graphics.drawable.BitmapDrawable;
-import android.graphics.drawable.Drawable;
-import android.net.Uri;
-import android.net.http.SslCertificate;
-import android.net.http.SslError;
-import android.os.Build;
-import android.os.Bundle;
-import android.preference.PreferenceManager;
-import android.print.PrintDocumentAdapter;
-import android.print.PrintManager;
-import android.support.annotation.NonNull;
-import android.support.design.widget.NavigationView;
-import android.support.design.widget.Snackbar;
-import android.support.v4.app.ActivityCompat;
-import android.support.v4.content.ContextCompat;
-import android.support.v4.view.GravityCompat;
-import android.support.v4.widget.DrawerLayout;
-import android.support.v4.widget.SwipeRefreshLayout;
-import android.support.v7.app.ActionBar;
-import android.support.v7.app.ActionBarDrawerToggle;
-import android.support.v7.app.AppCompatActivity;
-import android.support.v7.app.AppCompatDialogFragment;
-import android.support.v7.widget.Toolbar;
-import android.text.Editable;
-import android.text.TextWatcher;
-import android.util.Patterns;
-import android.view.ContextMenu;
-import android.view.KeyEvent;
-import android.view.Menu;
-import android.view.MenuItem;
-import android.view.View;
-import android.view.inputmethod.InputMethodManager;
-import android.webkit.CookieManager;
-import android.webkit.DownloadListener;
-import android.webkit.SslErrorHandler;
-import android.webkit.WebBackForwardList;
-import android.webkit.WebChromeClient;
-import android.webkit.WebStorage;
-import android.webkit.WebView;
-import android.webkit.WebViewClient;
-import android.webkit.WebViewDatabase;
-import android.widget.EditText;
-import android.widget.FrameLayout;
-import android.widget.ImageView;
-import android.widget.LinearLayout;
-import android.widget.ProgressBar;
-import android.widget.RelativeLayout;
-import android.widget.TextView;
-
-import java.io.UnsupportedEncodingException;
-import java.net.MalformedURLException;
-import java.net.URL;
-import java.net.URLEncoder;
-import java.util.HashMap;
-import java.util.Map;
-
-// We need to use AppCompatActivity from android.support.v7.app.AppCompatActivity to have access to the SupportActionBar until the minimum API is >= 21.
-public class MainWebViewActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcut.CreateHomeScreenSchortcutListener,
-        SslCertificateError.SslCertificateErrorListener, DownloadFile.DownloadFileListener, DownloadImage.DownloadImageListener, UrlHistory.UrlHistoryListener {
-
-    // `appBar` is public static so it can be accessed from `OrbotProxyHelper`.
-    // It is also used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
-    public static ActionBar appBar;
-
-    // `favoriteIcon` is public static so it can be accessed from `CreateHomeScreenShortcut`, `BookmarksActivity`, `CreateBookmark`, `CreateBookmarkFolder`, and `EditBookmark`.
-    // It is also used in `onCreate()` and `onCreateHomeScreenShortcutCreate()`.
-    public static Bitmap favoriteIcon;
-
-    // `formattedUrlString` is public static so it can be accessed from `BookmarksActivity`.
-    // It is also used in `onCreate()`, `onOptionsItemSelected()`, `onCreateHomeScreenShortcutCreate()`, and `loadUrlFromTextBox()`.
-    public static String formattedUrlString;
-
-    // `sslCertificate` is public static so it can be accessed from `ViewSslCertificate`.  It is also used in `onCreate()`.
-    public static SslCertificate sslCertificate;
-
-
-    // 'mainWebView' is used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onRestart()`, `onCreateContextMenu()`, `findPreviousOnPage()`, `findNextOnPage()`, `closeFindOnPage()`, and `loadUrlFromTextBox()`.
-    private WebView mainWebView;
-
-    // `swipeRefreshLayout` is used in `onCreate()`, `onPrepareOptionsMenu`, and `onRestart()`.
-    private SwipeRefreshLayout swipeRefreshLayout;
-
-    // `cookieManager` is used in `onCreate()`, `onOptionsItemSelected()`, and `onNavigationItemSelected()`, and `onRestart()`.
-    private CookieManager cookieManager;
-
-    // `customHeader` is used in `onCreate()`, `onOptionsItemSelected()`, `onCreateContextMenu()`, and `loadUrlFromTextBox()`.
-    private final Map<String, String> customHeaders = new HashMap<>();
-
-    // `javaScriptEnabled` is also used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `applySettings()`.
-    // It is `Boolean` instead of `boolean` because `applySettings()` needs to know if it is `null`.
-    private Boolean javaScriptEnabled;
-
-    // `firstPartyCookiesEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
-    private boolean firstPartyCookiesEnabled;
-
-    // `thirdPartyCookiesEnabled` used in `onCreate()`, `onCreateOptionsMenu()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
-    private boolean thirdPartyCookiesEnabled;
-
-    // `domStorageEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
-    private boolean domStorageEnabled;
-
-    // `saveFormDataEnabled` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `applySettings()`.
-    private boolean saveFormDataEnabled;
-
-    // `swipeToRefreshEnabled` is used in `onPrepareOptionsMenu()` and `applySettings()`.
-    private boolean swipeToRefreshEnabled;
-
-    // 'homepage' is used in `onCreate()`, `onNavigationItemSelected()`, and `applySettings()`.
-    private String homepage;
-
-    // `javaScriptDisabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`.
-    private String javaScriptDisabledSearchURL;
-
-    // `javaScriptEnabledSearchURL` is used in `loadURLFromTextBox()` and `applySettings()`.
-    private String javaScriptEnabledSearchURL;
-
-    // `mainMenu` is used in `onCreateOptionsMenu()` and `updatePrivacyIcons()`.
-    private Menu mainMenu;
-
-    // `drawerToggle` is used in `onCreate()`, `onPostCreate()`, `onConfigurationChanged()`, `onNewIntent()`, and `onNavigationItemSelected()`.
-    private ActionBarDrawerToggle drawerToggle;
-
-    // `drawerLayout` is used in `onCreate()`, `onNewIntent()`, and `onBackPressed()`.
-    private DrawerLayout drawerLayout;
-
-    // `urlTextBox` is used in `onCreate()`, `onOptionsItemSelected()`, and `loadUrlFromTextBox()`.
-    private EditText urlTextBox;
-
-    // `adView` is used in `onCreate()` and `onConfigurationChanged()`.
-    private View adView;
-
-    // `sslErrorHandler` is used in `onCreate()`, `onSslErrorCancel()`, and `onSslErrorProceed`.
-    private SslErrorHandler sslErrorHandler;
-
-    // `findOnPageEditText` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
-    private EditText findOnPageEditText;
-
-    // `inputMethodManager` is used in `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `closeFindOnPage()`.
-    private InputMethodManager inputMethodManager;
-
-    @Override
-    // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.  The whole premise of Privacy Browser is built around an understanding of these dangers.
-    @SuppressLint("SetJavaScriptEnabled")
-    protected void onCreate(Bundle savedInstanceState) {
-        super.onCreate(savedInstanceState);
-        setContentView(R.layout.main_coordinatorlayout);
-
-        // Get a handle for `inputMethodManager`.
-        inputMethodManager = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
-
-        // We need to use the SupportActionBar from android.support.v7.app.ActionBar until the minimum API is >= 21.
-        Toolbar supportAppBar = (Toolbar) findViewById(R.id.appBar);
-        setSupportActionBar(supportAppBar);
-        appBar = getSupportActionBar();
-
-        // This is needed to get rid of the Android Studio warning that appBar might be null.
-        assert appBar != null;
-
-        // Add the custom url_app_bar layout, which shows the favoriteIcon, urlTextBar, and progressBar.
-        appBar.setCustomView(R.layout.url_app_bar);
-        appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
-
-        // Set the "go" button on the keyboard to load the URL in urlTextBox.
-        urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.urlTextBox);
-        urlTextBox.setOnKeyListener(new View.OnKeyListener() {
-            @Override
-            public boolean onKey(View v, int keyCode, KeyEvent event) {
-                // If the event is a key-down event on the `enter` button, load the URL.
-                if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {
-                    // Load the URL into the mainWebView and consume the event.
-                    try {
-                        loadUrlFromTextBox();
-                    } catch (UnsupportedEncodingException e) {
-                        e.printStackTrace();
-                    }
-                    // If the enter key was pressed, consume the event.
-                    return true;
-                } else {
-                    // If any other key was pressed, do not consume the event.
-                    return false;
-                }
-            }
-        });
-
-        // Get handles for `fullScreenVideoFrameLayout`, `mainWebView`, and `find_on_page_edittext`.
-        final FrameLayout fullScreenVideoFrameLayout = (FrameLayout) findViewById(R.id.fullScreenVideoFrameLayout);
-        mainWebView = (WebView) findViewById(R.id.mainWebView);
-        findOnPageEditText = (EditText) findViewById(R.id.find_on_page_edittext);
-
-        // Update `findOnPageCountTextView`.
-        mainWebView.setFindListener(new WebView.FindListener() {
-            // Get a handle for `findOnPageCountTextView`.
-            TextView findOnPageCountTextView = (TextView) findViewById(R.id.find_on_page_count_textview);
-
-            @Override
-            public void onFindResultReceived(int activeMatchOrdinal, int numberOfMatches, boolean isDoneCounting) {
-                if ((isDoneCounting) && (numberOfMatches == 0)) {  // There are no matches.
-                    // Set `findOnPageCountTextView` to `0/0`.
-                    findOnPageCountTextView.setText(R.string.zero_of_zero);
-                } else if (isDoneCounting) {  // There are matches.
-                    // `activeMatchOrdinal` is zero-based.
-                    int activeMatch = activeMatchOrdinal + 1;
-
-                    // Set `findOnPageCountTextView`.
-                    findOnPageCountTextView.setText(activeMatch + "/" + numberOfMatches);
-                }
-            }
-        });
-
-        // Search for the string on the page whenever a character changes in the `findOnPageEditText`.
-        findOnPageEditText.addTextChangedListener(new TextWatcher() {
-            @Override
-            public void beforeTextChanged(CharSequence s, int start, int count, int after) {
-                // Do nothing.
-            }
-
-            @Override
-            public void onTextChanged(CharSequence s, int start, int before, int count) {
-                // Do nothing.
-            }
-
-            @Override
-            public void afterTextChanged(Editable s) {
-                // Search for the text in `mainWebView`.
-                mainWebView.findAllAsync(findOnPageEditText.getText().toString());
-            }
-        });
-
-        // Set the `check mark` button for the `findOnPageEditText` keyboard to close the soft keyboard.
-        findOnPageEditText.setOnKeyListener(new View.OnKeyListener() {
-            @Override
-            public boolean onKey(View v, int keyCode, KeyEvent event) {
-                if ((event.getAction() == KeyEvent.ACTION_DOWN) && (keyCode == KeyEvent.KEYCODE_ENTER)) {  // The `enter` key was pressed.
-                    // Hide the soft keyboard.  `0` indicates no additional flags.
-                    inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
-
-                    // Consume the event.
-                    return true;
-                } else {  // A different key was pressed.
-                    // Do not consume the event.
-                    return false;
-                }
-            }
-        });
-
-        // Implement swipe to refresh
-        swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.swipeRefreshLayout);
-        swipeRefreshLayout.setColorSchemeResources(R.color.blue_700);
-        swipeRefreshLayout.setOnRefreshListener(new SwipeRefreshLayout.OnRefreshListener() {
-            @Override
-            public void onRefresh() {
-                mainWebView.reload();
-            }
-        });
-
-        // Create the navigation drawer.
-        drawerLayout = (DrawerLayout) findViewById(R.id.drawerLayout);
-        // `DrawerTitle` identifies the drawer in accessibility mode.
-        drawerLayout.setDrawerTitle(GravityCompat.START, getString(R.string.navigation_drawer));
-
-        // Listen for touches on the navigation menu.
-        final NavigationView navigationView = (NavigationView) findViewById(R.id.navigationView);
-        navigationView.setNavigationItemSelectedListener(this);
-
-        // Get handles for `navigationMenu` and the back and forward menu items.  The menu is zero-based, so item 1 and 2 and the second and third items in the menu.
-        final Menu navigationMenu = navigationView.getMenu();
-        final MenuItem navigationBackMenuItem = navigationMenu.getItem(1);
-        final MenuItem navigationForwardMenuItem = navigationMenu.getItem(2);
-        final MenuItem navigationHistoryMenuItem = navigationMenu.getItem(3);
-
-        // The `DrawerListener` allows us to update the Navigation Menu.
-        drawerLayout.addDrawerListener(new DrawerLayout.DrawerListener() {
-            @Override
-            public void onDrawerSlide(View drawerView, float slideOffset) {
-            }
-
-            @Override
-            public void onDrawerOpened(View drawerView) {
-            }
-
-            @Override
-            public void onDrawerClosed(View drawerView) {
-            }
-
-            @Override
-            public void onDrawerStateChanged(int newState) {
-                // Update the `Back`, `Forward`, and `History` menu items every time the drawer opens.
-                navigationBackMenuItem.setEnabled(mainWebView.canGoBack());
-                navigationForwardMenuItem.setEnabled(mainWebView.canGoForward());
-                navigationHistoryMenuItem.setEnabled((mainWebView.canGoBack() || mainWebView.canGoForward()));
-
-                // Hide the keyboard so we can see the navigation menu.  `0` indicates no additional flags.
-                inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
-            }
-        });
-
-        // drawerToggle creates the hamburger icon at the start of the AppBar.
-        drawerToggle = new ActionBarDrawerToggle(this, drawerLayout, supportAppBar, R.string.open_navigation, R.string.close_navigation);
-
-        mainWebView.setWebViewClient(new WebViewClient() {
-            // `shouldOverrideUrlLoading` makes this `WebView` the default handler for URLs inside the app, so that links are not kicked out to other apps.
-            // We have to use the deprecated `shouldOverrideUrlLoading` until API >= 24.
-            @SuppressWarnings("deprecation")
-            @Override
-            public boolean shouldOverrideUrlLoading(WebView view, String url) {
-                // Use an external email program if the link begins with "mailto:".
-                if (url.startsWith("mailto:")) {
-                    // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
-                    Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
-
-                    // Parse the url and set it as the data for the `Intent`.
-                    emailIntent.setData(Uri.parse(url));
-
-                    // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
-                    emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-
-                    // Make it so.
-                    startActivity(emailIntent);
-                    return true;
-                } else {  // Load the URL in Privacy Browser.
-                    mainWebView.loadUrl(url, customHeaders);
-                    return true;
-                }
-            }
-
-            // Update the URL in urlTextBox when the page starts to load.
-            @Override
-            public void onPageStarted(WebView view, String url, Bitmap favicon) {
-                // We need to update `formattedUrlString` at the beginning of the load, so that if the user toggles JavaScript during the load the new website is reloaded.
-                formattedUrlString = url;
-
-                // Display the loading URL is the URL text box.
-                urlTextBox.setText(url);
-            }
-
-            // Update formattedUrlString and urlTextBox.  It is necessary to do this after the page finishes loading because the final URL can change during load.
-            @Override
-            public void onPageFinished(WebView view, String url) {
-                formattedUrlString = url;
-
-                // Only update urlTextBox if the user is not typing in it.
-                if (!urlTextBox.hasFocus()) {
-                    urlTextBox.setText(formattedUrlString);
-                }
-
-                // Store the SSL certificate so it can be accessed from `ViewSslCertificate`.
-                sslCertificate = mainWebView.getCertificate();
-            }
-
-            // Handle SSL Certificate errors.
-            @Override
-            public void onReceivedSslError(WebView view, SslErrorHandler handler, SslError error) {
-                // Store `handler` so it can be accesses from `onSslErrorCancel()` and `onSslErrorProceed()`.
-                sslErrorHandler = handler;
-
-                // Display the SSL error `AlertDialog`.
-                AppCompatDialogFragment sslCertificateErrorDialogFragment = SslCertificateError.displayDialog(error);
-                sslCertificateErrorDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.ssl_certificate_error));
-            }
-        });
-
-        mainWebView.setWebChromeClient(new WebChromeClient() {
-            // Update the progress bar when a page is loading.
-            @Override
-            public void onProgressChanged(WebView view, int progress) {
-                ProgressBar progressBar = (ProgressBar) appBar.getCustomView().findViewById(R.id.progressBar);
-                progressBar.setProgress(progress);
-                if (progress < 100) {
-                    progressBar.setVisibility(View.VISIBLE);
-                } else {
-                    progressBar.setVisibility(View.GONE);
-
-                    //Stop the `SwipeToRefresh` indicator if it is running
-                    swipeRefreshLayout.setRefreshing(false);
-                }
-            }
-
-            // Set the favorite icon when it changes.
-            @Override
-            public void onReceivedIcon(WebView view, Bitmap icon) {
-                // Save a copy of the favorite icon for use if a shortcut is added to the home screen.
-                favoriteIcon = icon;
-
-                // Place the favorite icon in the appBar.
-                ImageView imageViewFavoriteIcon = (ImageView) appBar.getCustomView().findViewById(R.id.favoriteIcon);
-                imageViewFavoriteIcon.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
-            }
-
-            // Enter full screen video
-            @Override
-            public void onShowCustomView(View view, CustomViewCallback callback) {
-                appBar.hide();
-
-                // Show the fullScreenVideoFrameLayout.
-                fullScreenVideoFrameLayout.addView(view);
-                fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
-
-                // Hide the mainWebView.
-                mainWebView.setVisibility(View.GONE);
-
-                // Hide the ad if this is the free flavor.
-                BannerAd.hideAd(adView);
-
-                /* SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bars on the bottom or right of the screen.
-                 * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar across the top of the screen.
-                 * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the navigation and status bars ghosted overlays and automatically rehides them.
-                 */
-                view.setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
-            }
-
-            // Exit full screen video
-            public void onHideCustomView() {
-                appBar.show();
-
-                // Show the mainWebView.
-                mainWebView.setVisibility(View.VISIBLE);
-
-                // Show the ad if this is the free flavor.
-                BannerAd.showAd(adView);
-
-                // Hide the fullScreenVideoFrameLayout.
-                fullScreenVideoFrameLayout.removeAllViews();
-                fullScreenVideoFrameLayout.setVisibility(View.GONE);
-            }
-        });
-
-        // Register `mainWebView` for a context menu.  This is used to see link targets and download images.
-        registerForContextMenu(mainWebView);
-
-        // Allow the downloading of files.
-        mainWebView.setDownloadListener(new DownloadListener() {
-            @Override
-            public void onDownloadStart(String url, String userAgent, String contentDisposition, String mimetype, long contentLength) {
-                // Show the `DownloadFile` `AlertDialog` and name this instance `@string/download`.
-                AppCompatDialogFragment downloadFileDialogFragment = DownloadFile.fromUrl(url, contentDisposition, contentLength);
-                downloadFileDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
-            }
-        });
-
-        // Allow pinch to zoom.
-        mainWebView.getSettings().setBuiltInZoomControls(true);
-
-        // Hide zoom controls.
-        mainWebView.getSettings().setDisplayZoomControls(false);
-
-        // Initialize cookieManager.
-        cookieManager = CookieManager.getInstance();
-
-        // Replace the header that `WebView` creates for `X-Requested-With` with a null value.  The default value is the application ID (com.stoutner.privacybrowser.standard).
-        customHeaders.put("X-Requested-With", "");
-
-        // Initialize the default preference values the first time the program is run.
-        PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
-
-        // Apply the settings from the shared preferences.
-        applySettings();
-
-        // Get the intent information that started the app.
-        final Intent intent = getIntent();
-
-        if (intent.getData() != null) {
-            // Get the intent data and convert it to a string.
-            final Uri intentUriData = intent.getData();
-            formattedUrlString = intentUriData.toString();
-        }
-
-        // If formattedUrlString is null assign the homepage to it.
-        if (formattedUrlString == null) {
-            formattedUrlString = homepage;
-        }
-
-        // Load the initial website.
-        mainWebView.loadUrl(formattedUrlString, customHeaders);
-
-        // If the favorite icon is null, load the default.
-        if (favoriteIcon == null) {
-            // We have to use `ContextCompat` until API >= 21.
-            Drawable favoriteIconDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.world);
-            BitmapDrawable favoriteIconBitmapDrawable = (BitmapDrawable) favoriteIconDrawable;
-            favoriteIcon = favoriteIconBitmapDrawable.getBitmap();
-        }
-
-        // Initialize AdView for the free flavor and request an ad.  If this is not the free flavor BannerAd.requestAd() does nothing.
-        adView = findViewById(R.id.adView);
-        BannerAd.requestAd(adView);
-    }
-
-
-    @Override
-    protected void onNewIntent(Intent intent) {
-        // Sets the new intent as the activity intent, so that any future `getIntent()`s pick up this one instead of creating a new activity.
-        setIntent(intent);
-
-        if (intent.getData() != null) {
-            // Get the intent data and convert it to a string.
-            final Uri intentUriData = intent.getData();
-            formattedUrlString = intentUriData.toString();
-        }
-
-        // Close the navigation drawer if it is open.
-        if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
-            drawerLayout.closeDrawer(GravityCompat.START);
-        }
-
-        // Load the website.
-        mainWebView.loadUrl(formattedUrlString, customHeaders);
-
-        // Clear the keyboard if displayed and remove the focus on the urlTextBar if it has it.
-        mainWebView.requestFocus();
-    }
-
-    @Override
-    public boolean onCreateOptionsMenu(Menu menu) {
-        // Inflate the menu; this adds items to the action bar if it is present.
-        getMenuInflater().inflate(R.menu.webview_options_menu, menu);
-
-        // Set mainMenu so it can be used by `onOptionsItemSelected()` and `updatePrivacyIcons`.
-        mainMenu = menu;
-
-        // Set the initial status of the privacy icons.  `false` does not call `invalidateOptionsMenu` as the last step.
-        updatePrivacyIcons(false);
-
-        // Get handles for the menu items.
-        MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
-        MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
-        MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
-        MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
-
-        // Only display third-Party Cookies if SDK >= 21
-        toggleThirdPartyCookies.setVisible(Build.VERSION.SDK_INT >= 21);
-
-        // Get the shared preference values.  `this` references the current context.
-        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
-
-        // Set the status of the additional app bar icons.  The default is `false`.
-        if (sharedPreferences.getBoolean("display_additional_app_bar_icons", false)) {
-            toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
-            toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
-            toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_IF_ROOM);
-        } else { //Do not display the additional icons.
-            toggleFirstPartyCookies.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
-            toggleDomStorage.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
-            toggleSaveFormData.setShowAsAction(MenuItem.SHOW_AS_ACTION_NEVER);
-        }
-
-        return true;
-    }
-
-    @Override
-    public boolean onPrepareOptionsMenu(Menu menu) {
-        // Get handles for the menu items.
-        MenuItem toggleFirstPartyCookies = menu.findItem(R.id.toggleFirstPartyCookies);
-        MenuItem toggleThirdPartyCookies = menu.findItem(R.id.toggleThirdPartyCookies);
-        MenuItem toggleDomStorage = menu.findItem(R.id.toggleDomStorage);
-        MenuItem toggleSaveFormData = menu.findItem(R.id.toggleSaveFormData);
-        MenuItem clearCookies = menu.findItem(R.id.clearCookies);
-        MenuItem clearFormData = menu.findItem(R.id.clearFormData);
-        MenuItem refreshMenuItem = menu.findItem(R.id.refresh);
-
-        // Set the status of the menu item checkboxes.
-        toggleFirstPartyCookies.setChecked(firstPartyCookiesEnabled);
-        toggleThirdPartyCookies.setChecked(thirdPartyCookiesEnabled);
-        toggleDomStorage.setChecked(domStorageEnabled);
-        toggleSaveFormData.setChecked(saveFormDataEnabled);
-
-        // Enable third-party cookies if first-party cookies are enabled.
-        toggleThirdPartyCookies.setEnabled(firstPartyCookiesEnabled);
-
-        // Enable DOM Storage if JavaScript is enabled.
-        toggleDomStorage.setEnabled(javaScriptEnabled);
-
-        // Enable Clear Cookies if there are any.
-        clearCookies.setEnabled(cookieManager.hasCookies());
-
-        // Enable Clear Form Data is there is any.
-        WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
-        clearFormData.setEnabled(mainWebViewDatabase.hasFormData());
-
-        // Only show `Refresh` if `swipeToRefresh` is disabled.
-        refreshMenuItem.setVisible(!swipeToRefreshEnabled);
-
-        // Initialize font size variables.
-        int fontSize = mainWebView.getSettings().getTextZoom();
-        String fontSizeTitle;
-        MenuItem selectedFontSizeMenuItem;
-
-        // Prepare the font size title and current size menu item.
-        switch (fontSize) {
-            case 50:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.fifty_percent);
-                selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeFiftyPercent);
-                break;
-
-            case 75:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.seventy_five_percent);
-                selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeSeventyFivePercent);
-                break;
-
-            case 100:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
-                selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
-                break;
-
-            case 125:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_twenty_five_percent);
-                selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredTwentyFivePercent);
-                break;
-
-            case 150:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_fifty_percent);
-                selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredFiftyPercent);
-                break;
-
-            case 175:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_seventy_five_percent);
-                selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredSeventyFivePercent);
-                break;
-
-            case 200:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.two_hundred_percent);
-                selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeTwoHundredPercent);
-                break;
-
-            default:
-                fontSizeTitle = getResources().getString(R.string.font_size) + " - " + getResources().getString(R.string.one_hundred_percent);
-                selectedFontSizeMenuItem = menu.findItem(R.id.fontSizeOneHundredPercent);
-                break;
-        }
-
-        // Set the font size title and select the current size menu item.
-        MenuItem fontSizeMenuItem = menu.findItem(R.id.fontSize);
-        fontSizeMenuItem.setTitle(fontSizeTitle);
-        selectedFontSizeMenuItem.setChecked(true);
-
-        // Run all the other default commands.
-        super.onPrepareOptionsMenu(menu);
-
-        // `return true` displays the menu.
-        return true;
-    }
-
-    @Override
-    // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.
-    @SuppressLint("SetJavaScriptEnabled")
-    // removeAllCookies is deprecated, but it is required for API < 21.
-    @SuppressWarnings("deprecation")
-    public boolean onOptionsItemSelected(MenuItem menuItem) {
-        int menuItemId = menuItem.getItemId();
-
-        // Set the commands that relate to the menu entries.
-        switch (menuItemId) {
-            case R.id.toggleJavaScript:
-                // Switch the status of javaScriptEnabled.
-                javaScriptEnabled = !javaScriptEnabled;
-
-                // Apply the new JavaScript status.
-                mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
-
-                // Update the privacy icon.  `true` runs `invalidateOptionsMenu` as the last step.
-                updatePrivacyIcons(true);
-
-                // Display a `Snackbar`.
-                if (javaScriptEnabled) {  // JavaScrip is enabled.
-                    Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_enabled, Snackbar.LENGTH_SHORT).show();
-                } else if (firstPartyCookiesEnabled) {  // JavaScript is disabled, but first-party cookies are enabled.
-                    Snackbar.make(findViewById(R.id.mainWebView), R.string.javascript_disabled, Snackbar.LENGTH_SHORT).show();
-                } else {  // Privacy mode.
-                    Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
-                }
-
-                // Reload the WebView.
-                mainWebView.reload();
-                return true;
-
-            case R.id.toggleFirstPartyCookies:
-                // Switch the status of firstPartyCookiesEnabled.
-                firstPartyCookiesEnabled = !firstPartyCookiesEnabled;
-
-                // Update the menu checkbox.
-                menuItem.setChecked(firstPartyCookiesEnabled);
-
-                // Apply the new cookie status.
-                cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
-
-                // Update the privacy icon.  `true` runs `invalidateOptionsMenu` as the last step.
-                updatePrivacyIcons(true);
-
-                // Display a `Snackbar`.
-                if (firstPartyCookiesEnabled) {  // First-party cookies are enabled.
-                    Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_enabled, Snackbar.LENGTH_SHORT).show();
-                } else if (javaScriptEnabled){  // JavaScript is still enabled.
-                    Snackbar.make(findViewById(R.id.mainWebView), R.string.first_party_cookies_disabled, Snackbar.LENGTH_SHORT).show();
-                } else {  // Privacy mode.
-                    Snackbar.make(findViewById(R.id.mainWebView), R.string.privacy_mode, Snackbar.LENGTH_SHORT).show();
-                }
-
-                // Reload the WebView.
-                mainWebView.reload();
-                return true;
-
-            case R.id.toggleThirdPartyCookies:
-                if (Build.VERSION.SDK_INT >= 21) {
-                    // Switch the status of thirdPartyCookiesEnabled.
-                    thirdPartyCookiesEnabled = !thirdPartyCookiesEnabled;
-
-                    // Update the menu checkbox.
-                    menuItem.setChecked(thirdPartyCookiesEnabled);
-
-                    // Apply the new cookie status.
-                    cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
-
-                    // Display a `Snackbar`.
-                    if (thirdPartyCookiesEnabled) {
-                        Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_enabled, Snackbar.LENGTH_SHORT).show();
-                    } else {
-                        Snackbar.make(findViewById(R.id.mainWebView), R.string.third_party_cookies_disabled, Snackbar.LENGTH_SHORT).show();
-                    }
-
-                    // Reload the WebView.
-                    mainWebView.reload();
-                } // Else do nothing because SDK < 21.
-                return true;
-
-            case R.id.toggleDomStorage:
-                // Switch the status of domStorageEnabled.
-                domStorageEnabled = !domStorageEnabled;
-
-                // Update the menu checkbox.
-                menuItem.setChecked(domStorageEnabled);
-
-                // Apply the new DOM Storage status.
-                mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
-
-                // Update the privacy icon.  `true` runs `invalidateOptionsMenu` as the last step.
-                updatePrivacyIcons(true);
-
-                // Display a `Snackbar`.
-                if (domStorageEnabled) {
-                    Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_enabled, Snackbar.LENGTH_SHORT).show();
-                } else {
-                    Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_disabled, Snackbar.LENGTH_SHORT).show();
-                }
-
-                // Reload the WebView.
-                mainWebView.reload();
-                return true;
-
-            case R.id.toggleSaveFormData:
-                // Switch the status of saveFormDataEnabled.
-                saveFormDataEnabled = !saveFormDataEnabled;
-
-                // Update the menu checkbox.
-                menuItem.setChecked(saveFormDataEnabled);
-
-                // Apply the new form data status.
-                mainWebView.getSettings().setSaveFormData(saveFormDataEnabled);
-
-                // Display a `Snackbar`.
-                if (saveFormDataEnabled) {
-                    Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_enabled, Snackbar.LENGTH_SHORT).show();
-                } else {
-                    Snackbar.make(findViewById(R.id.mainWebView), R.string.form_data_disabled, Snackbar.LENGTH_SHORT).show();
-                }
-
-                // Update the privacy icon.  `true` runs `invalidateOptionsMenu` as the last step.
-                updatePrivacyIcons(true);
-
-                // Reload the WebView.
-                mainWebView.reload();
-                return true;
-
-            case R.id.clearCookies:
-                if (Build.VERSION.SDK_INT < 21) {
-                    cookieManager.removeAllCookie();
-                } else {
-                    cookieManager.removeAllCookies(null);
-                }
-                Snackbar.make(findViewById(R.id.mainWebView), R.string.cookies_deleted, Snackbar.LENGTH_SHORT).show();
-                return true;
-
-            case R.id.clearDomStorage:
-                WebStorage webStorage = WebStorage.getInstance();
-                webStorage.deleteAllData();
-                Snackbar.make(findViewById(R.id.mainWebView), R.string.dom_storage_deleted, Snackbar.LENGTH_SHORT).show();
-                return true;
-
-            case R.id.clearFormData:
-                WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
-                mainWebViewDatabase.clearFormData();
-                mainWebView.reload();
-                return true;
-
-            case R.id.fontSizeFiftyPercent:
-                mainWebView.getSettings().setTextZoom(50);
-                return true;
-
-            case R.id.fontSizeSeventyFivePercent:
-                mainWebView.getSettings().setTextZoom(75);
-                return true;
-
-            case R.id.fontSizeOneHundredPercent:
-                mainWebView.getSettings().setTextZoom(100);
-                return true;
-
-            case R.id.fontSizeOneHundredTwentyFivePercent:
-                mainWebView.getSettings().setTextZoom(125);
-                return true;
-
-            case R.id.fontSizeOneHundredFiftyPercent:
-                mainWebView.getSettings().setTextZoom(150);
-                return true;
-
-            case R.id.fontSizeOneHundredSeventyFivePercent:
-                mainWebView.getSettings().setTextZoom(175);
-                return true;
-
-            case R.id.fontSizeTwoHundredPercent:
-                mainWebView.getSettings().setTextZoom(200);
-                return true;
-
-            case R.id.find_on_page:
-                // Hide the URL app bar.
-                Toolbar appBarToolbar = (Toolbar) findViewById(R.id.appBar);
-                appBarToolbar.setVisibility(View.GONE);
-
-                // Show the Find on Page `RelativeLayout`.
-                LinearLayout findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout);
-                findOnPageLinearLayout.setVisibility(View.VISIBLE);
-
-                // Display the keyboard.  We have to wait 200 ms before running the command to work around a bug in Android.
-                // http://stackoverflow.com/questions/5520085/android-show-softkeyboard-with-showsoftinput-is-not-working
-                findOnPageEditText.postDelayed(new Runnable()
-                {
-                    @Override
-                    public void run()
-                    {
-                        // Set the focus on `findOnPageEditText`.
-                        findOnPageEditText.requestFocus();
-
-                        // Display the keyboard.
-                        inputMethodManager.showSoftInput(findOnPageEditText, 0);
-                    }
-                }, 200);
-                return true;
-
-            case R.id.share:
-                Intent shareIntent = new Intent();
-                shareIntent.setAction(Intent.ACTION_SEND);
-                shareIntent.putExtra(Intent.EXTRA_TEXT, urlTextBox.getText().toString());
-                shareIntent.setType("text/plain");
-                startActivity(Intent.createChooser(shareIntent, "Share URL"));
-                return true;
-
-            case R.id.addToHomescreen:
-                // Show the `CreateHomeScreenShortcut` `AlertDialog` and name this instance `R.string.create_shortcut`.
-                AppCompatDialogFragment createHomeScreenShortcutDialogFragment = new CreateHomeScreenShortcut();
-                createHomeScreenShortcutDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.create_shortcut));
-
-                //Everything else will be handled by `CreateHomeScreenShortcut` and the associated listener below.
-                return true;
-
-            case R.id.print:
-                // Get a `PrintManager` instance.
-                PrintManager printManager = (PrintManager) getSystemService(Context.PRINT_SERVICE);
-
-                // Convert `mainWebView` to `printDocumentAdapter`.
-                PrintDocumentAdapter printDocumentAdapter = mainWebView.createPrintDocumentAdapter();
-
-                // Print the document.  The print attributes are `null`.
-                printManager.print(getResources().getString(R.string.privacy_browser_web_page), printDocumentAdapter, null);
-                return true;
-
-            case R.id.refresh:
-                mainWebView.reload();
-                return true;
-
-            default:
-                // Don't consume the event.
-                return super.onOptionsItemSelected(menuItem);
-        }
-    }
-
-    // removeAllCookies is deprecated, but it is required for API < 21.
-    @SuppressWarnings("deprecation")
-    @Override
-    public boolean onNavigationItemSelected(@NonNull MenuItem menuItem) {
-        int menuItemId = menuItem.getItemId();
-
-        switch (menuItemId) {
-            case R.id.home:
-                mainWebView.loadUrl(homepage, customHeaders);
-                break;
-
-            case R.id.back:
-                if (mainWebView.canGoBack()) {
-                    mainWebView.goBack();
-                }
-                break;
-
-            case R.id.forward:
-                if (mainWebView.canGoForward()) {
-                    mainWebView.goForward();
-                }
-                break;
-
-            case R.id.history:
-                // Gte the `WebBackForwardList`.
-                WebBackForwardList webBackForwardList = mainWebView.copyBackForwardList();
-
-                // Show the `UrlHistory` `AlertDialog` and name this instance `R.string.history`.  `this` is the `Context`.
-                AppCompatDialogFragment urlHistoryDialogFragment = UrlHistory.loadBackForwardList(this, webBackForwardList);
-                urlHistoryDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.history));
-                break;
-
-            case R.id.bookmarks:
-                // Launch BookmarksActivity.
-                Intent bookmarksIntent = new Intent(this, BookmarksActivity.class);
-                startActivity(bookmarksIntent);
-                break;
-
-            case R.id.downloads:
-                // Launch the system Download Manager.
-                Intent downloadManagerIntent = new Intent(DownloadManager.ACTION_VIEW_DOWNLOADS);
-
-                // Launch as a new task so that Download Manager and Privacy Browser show as separate windows in the recent tasks list.
-                downloadManagerIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-
-                startActivity(downloadManagerIntent);
-                break;
-
-            case R.id.settings:
-                // Launch `SettingsActivity`.
-                Intent settingsIntent = new Intent(this, SettingsActivity.class);
-                startActivity(settingsIntent);
-                break;
-
-            case R.id.guide:
-                // Launch `GuideActivity`.
-                Intent guideIntent = new Intent(this, GuideActivity.class);
-                startActivity(guideIntent);
-                break;
-
-            case R.id.about:
-                // Launch `AboutActivity`.
-                Intent aboutIntent = new Intent(this, AboutActivity.class);
-                startActivity(aboutIntent);
-                break;
-
-            case R.id.clearAndExit:
-                // Clear cookies.  The commands changed slightly in API 21.
-                if (Build.VERSION.SDK_INT >= 21) {
-                    cookieManager.removeAllCookies(null);
-                } else {
-                    cookieManager.removeAllCookie();
-                }
-
-                // Clear DOM storage.
-                WebStorage domStorage = WebStorage.getInstance();
-                domStorage.deleteAllData();
-
-                // Clear form data.
-                WebViewDatabase formData = WebViewDatabase.getInstance(this);
-                formData.clearFormData();
-
-                // Clear cache.  The argument of "true" includes disk files.
-                mainWebView.clearCache(true);
-
-                // Clear the back/forward history.
-                mainWebView.clearHistory();
-
-                // Clear any SSL certificate preferences.
-                mainWebView.clearSslPreferences();
-
-                // Clear `formattedUrlString`.
-                formattedUrlString = null;
-
-                // Clear `customHeaders`.
-                customHeaders.clear();
-
-                // Detach all views from `mainWebViewRelativeLayout`.
-                RelativeLayout mainWebViewRelativeLayout = (RelativeLayout) findViewById(R.id.mainWebViewRelativeLayout);
-                mainWebViewRelativeLayout.removeAllViews();
-
-                // Destroy the internal state of `mainWebView`.
-                mainWebView.destroy();
-
-                // Close Privacy Browser.  `finishAndRemoveTask` also removes Privacy Browser from the recent app list.
-                if (Build.VERSION.SDK_INT >= 21) {
-                    finishAndRemoveTask();
-                } else {
-                    finish();
-                }
-
-                // Remove the terminated program from RAM.  The status code is `0`.
-                System.exit(0);
-                break;
-
-            default:
-                break;
-        }
-
-        // Close the navigation drawer.
-        drawerLayout.closeDrawer(GravityCompat.START);
-        return true;
-    }
-
-    @Override
-    public void onPostCreate(Bundle savedInstanceState) {
-        super.onPostCreate(savedInstanceState);
-
-        // Sync the state of the DrawerToggle after onRestoreInstanceState has finished.
-        drawerToggle.syncState();
-    }
-
-    @Override
-    public void onConfigurationChanged(Configuration newConfig) {
-        super.onConfigurationChanged(newConfig);
-
-        // Reload the ad if this is the free flavor.
-        BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
-
-        // Reinitialize the adView variable, as the View will have been removed and re-added in the free flavor by BannerAd.reloadAfterRotate().
-        adView = findViewById(R.id.adView);
-
-        // `invalidateOptionsMenu` should recalculate the number of action buttons from the menu to display on the app bar, but it doesn't because of the this bug:  https://code.google.com/p/android/issues/detail?id=20493#c8
-        // ActivityCompat.invalidateOptionsMenu(this);
-    }
-
-    @Override
-    public void onCreateContextMenu(ContextMenu menu, View view, ContextMenu.ContextMenuInfo menuInfo) {
-        // Store the `HitTestResult`.
-        final WebView.HitTestResult hitTestResult = mainWebView.getHitTestResult();
-
-        // Create strings.
-        final String imageUrl;
-        final String linkUrl;
-
-        switch (hitTestResult.getType()) {
-            // `SRC_ANCHOR_TYPE` is a link.
-            case WebView.HitTestResult.SRC_ANCHOR_TYPE:
-                // Get the target URL.
-                linkUrl = hitTestResult.getExtra();
-
-                // Set the target URL as the title of the `ContextMenu`.
-                menu.setHeaderTitle(linkUrl);
-
-                // Add a `Load URL` button.
-                menu.add(R.string.load_url).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
-                    @Override
-                    public boolean onMenuItemClick(MenuItem item) {
-                        mainWebView.loadUrl(linkUrl, customHeaders);
-                        return false;
-                    }
-                });
-
-                // Add a `Cancel` button, which by default closes the `ContextMenu`.
-                menu.add(R.string.cancel);
-                break;
-
-            case WebView.HitTestResult.EMAIL_TYPE:
-                // Get the target URL.
-                linkUrl = hitTestResult.getExtra();
-
-                // Set the target URL as the title of the `ContextMenu`.
-                menu.setHeaderTitle(linkUrl);
-
-                // Add a `Write Email` button.
-                menu.add(R.string.write_email).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
-                    @Override
-                    public boolean onMenuItemClick(MenuItem item) {
-                        // We use `ACTION_SENDTO` instead of `ACTION_SEND` so that only email programs are launched.
-                        Intent emailIntent = new Intent(Intent.ACTION_SENDTO);
-
-                        // Parse the url and set it as the data for the `Intent`.
-                        emailIntent.setData(Uri.parse("mailto:" + linkUrl));
-
-                        // `FLAG_ACTIVITY_NEW_TASK` opens the email program in a new task instead as part of Privacy Browser.
-                        emailIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-
-                        // Make it so.
-                        startActivity(emailIntent);
-                        return false;
-                    }
-                });
-
-                // Add a `Cancel` button, which by default closes the `ContextMenu`.
-                menu.add(R.string.cancel);
-                break;
-
-            // `IMAGE_TYPE` is an image.
-            case WebView.HitTestResult.IMAGE_TYPE:
-                // Get the image URL.
-                imageUrl = hitTestResult.getExtra();
-
-                // Set the image URL as the title of the `ContextMenu`.
-                menu.setHeaderTitle(imageUrl);
-
-                // Add a `View Image` button.
-                menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
-                    @Override
-                    public boolean onMenuItemClick(MenuItem item) {
-                        mainWebView.loadUrl(imageUrl, customHeaders);
-                        return false;
-                    }
-                });
-
-                // Add a `Download Image` button.
-                menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
-                    @Override
-                    public boolean onMenuItemClick(MenuItem item) {
-                        // Show the `DownloadImage` `AlertDialog` and name this instance `@string/download`.
-                        AppCompatDialogFragment downloadImageDialogFragment = DownloadImage.imageUrl(imageUrl);
-                        downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
-                        return false;
-                    }
-                });
-
-                // Add a `Cancel` button, which by default closes the `ContextMenu`.
-                menu.add(R.string.cancel);
-                break;
-
-
-            // `SRC_IMAGE_ANCHOR_TYPE` is an image that is also a link.
-            case WebView.HitTestResult.SRC_IMAGE_ANCHOR_TYPE:
-                // Get the image URL.
-                imageUrl = hitTestResult.getExtra();
-
-                // Set the image URL as the title of the `ContextMenu`.
-                menu.setHeaderTitle(imageUrl);
-
-                // Add a `View Image` button.
-                menu.add(R.string.view_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
-                    @Override
-                    public boolean onMenuItemClick(MenuItem item) {
-                        mainWebView.loadUrl(imageUrl, customHeaders);
-                        return false;
-                    }
-                });
-
-                // Add a `Download Image` button.
-                menu.add(R.string.download_image).setOnMenuItemClickListener(new MenuItem.OnMenuItemClickListener() {
-                    @Override
-                    public boolean onMenuItemClick(MenuItem item) {
-                        // Show the `DownloadImage` `AlertDialog` and name this instance `@string/download`.
-                        AppCompatDialogFragment downloadImageDialogFragment = DownloadImage.imageUrl(imageUrl);
-                        downloadImageDialogFragment.show(getSupportFragmentManager(), getResources().getString(R.string.download));
-                        return false;
-                    }
-                });
-
-                // Add a `Cancel` button, which by default closes the `ContextMenu`.
-                menu.add(R.string.cancel);
-                break;
-        }
-    }
-
-    @Override
-    public void onCreateHomeScreenShortcut(AppCompatDialogFragment dialogFragment) {
-        // Get shortcutNameEditText from the alert dialog.
-        EditText shortcutNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.shortcut_name_edittext);
-
-        // Create the bookmark shortcut based on formattedUrlString.
-        Intent bookmarkShortcut = new Intent();
-        bookmarkShortcut.setAction(Intent.ACTION_VIEW);
-        bookmarkShortcut.setData(Uri.parse(formattedUrlString));
-
-        // Place the bookmark shortcut on the home screen.
-        Intent placeBookmarkShortcut = new Intent();
-        placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.INTENT", bookmarkShortcut);
-        placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.NAME", shortcutNameEditText.getText().toString());
-        placeBookmarkShortcut.putExtra("android.intent.extra.shortcut.ICON", favoriteIcon);
-        placeBookmarkShortcut.setAction("com.android.launcher.action.INSTALL_SHORTCUT");
-        sendBroadcast(placeBookmarkShortcut);
-    }
-
-    @Override
-    public void onDownloadImage(AppCompatDialogFragment dialogFragment, String imageUrl) {
-        // Get a handle for the system `DOWNLOAD_SERVICE`.
-        DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
-
-        // Parse `imageUrl`.
-        DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(imageUrl));
-
-        // Get the file name from `dialogFragment`.
-        EditText downloadImageNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_image_name);
-        String imageName = downloadImageNameEditText.getText().toString();
-
-        // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
-        if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download save in the the `DIRECTORY_DOWNLOADS` using `imageName`.
-            downloadRequest.setDestinationInExternalFilesDir(this, "/", imageName);
-        } else { // Only set the title using `imageName`.
-            downloadRequest.setTitle(imageName);
-        }
-
-        // Allow `MediaScanner` to index the download if it is a media file.
-        downloadRequest.allowScanningByMediaScanner();
-
-        // Add the URL as the description for the download.
-        downloadRequest.setDescription(imageUrl);
-
-        // Show the download notification after the download is completed.
-        downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
-
-        // Initiate the download.
-        downloadManager.enqueue(downloadRequest);
-    }
-
-    @Override
-    public void onDownloadFile(AppCompatDialogFragment dialogFragment, String downloadUrl) {
-        // Get a handle for the system `DOWNLOAD_SERVICE`.
-        DownloadManager downloadManager = (DownloadManager) getSystemService(DOWNLOAD_SERVICE);
-
-        // Parse `downloadUrl`.
-        DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(downloadUrl));
-
-        // Get the file name from `dialogFragment`.
-        EditText downloadFileNameEditText = (EditText) dialogFragment.getDialog().findViewById(R.id.download_file_name);
-        String fileName = downloadFileNameEditText.getText().toString();
-
-        // Once we have `WRITE_EXTERNAL_STORAGE` permissions we can use `setDestinationInExternalPublicDir`.
-        if (Build.VERSION.SDK_INT >= 23) { // If API >= 23, set the download save in the the `DIRECTORY_DOWNLOADS` using `fileName`.
-            downloadRequest.setDestinationInExternalFilesDir(this, "/", fileName);
-        } else { // Only set the title using `fileName`.
-            downloadRequest.setTitle(fileName);
-        }
-
-        // Allow `MediaScanner` to index the download if it is a media file.
-        downloadRequest.allowScanningByMediaScanner();
-
-        // Add the URL as the description for the download.
-        downloadRequest.setDescription(downloadUrl);
-
-        // Show the download notification after the download is completed.
-        downloadRequest.setNotificationVisibility(DownloadManager.Request.VISIBILITY_VISIBLE_NOTIFY_COMPLETED);
-
-        // Initiate the download.
-        downloadManager.enqueue(downloadRequest);
-    }
-
-    public void viewSslCertificate(View view) {
-        // Show the `ViewSslCertificate` `AlertDialog` and name this instance `@string/view_ssl_certificate`.
-        DialogFragment viewSslCertificateDialogFragment = new ViewSslCertificate();
-        viewSslCertificateDialogFragment.show(getFragmentManager(), getResources().getString(R.string.view_ssl_certificate));
-    }
-
-    @Override
-    public void onSslErrorCancel() {
-        sslErrorHandler.cancel();
-    }
-
-    @Override
-    public void onSslErrorProceed() {
-        sslErrorHandler.proceed();
-    }
-
-    @Override
-    public void onUrlHistoryEntrySelected(int moveBackOrForwardSteps) {
-        // Load the history entry.
-        mainWebView.goBackOrForward(moveBackOrForwardSteps);
-    }
-
-    @Override
-    public void onClearHistory() {
-        // Clear the history.
-        mainWebView.clearHistory();
-    }
-
-    // Override onBackPressed to handle the navigation drawer and mainWebView.
-    @Override
-    public void onBackPressed() {
-        final WebView mainWebView = (WebView) findViewById(R.id.mainWebView);
-
-        // Close the navigation drawer if it is available.  GravityCompat.START is the drawer on the left on Left-to-Right layout text.
-        if (drawerLayout.isDrawerVisible(GravityCompat.START)) {
-            drawerLayout.closeDrawer(GravityCompat.START);
-        } else {
-            // Load the previous URL if available.
-            if (mainWebView.canGoBack()) {
-                mainWebView.goBack();
-            } else {
-                // Pass onBackPressed to the system.
-                super.onBackPressed();
-            }
-        }
-    }
-
-    @Override
-    public void onPause() {
-        // Pause `mainWebView`.
-        mainWebView.onPause();
-        mainWebView.pauseTimers();
-
-        // We need to pause the adView or it will continue to consume resources in the background on the free flavor.
-        BannerAd.pauseAd(adView);
-
-        super.onPause();
-    }
-
-    @Override
-    public void onResume() {
-        super.onResume();
-
-        // Resume `mainWebView`.
-        mainWebView.resumeTimers();
-        mainWebView.onResume();
-
-        // We need to resume the adView for the free flavor.
-        BannerAd.resumeAd(adView);
-    }
-
-    @Override
-    public void onRestart() {
-        super.onRestart();
-
-        // Apply the settings from shared preferences, which might have been changed in `SettingsActivity`.
-        applySettings();
-
-        // Update the privacy icon.  `true` runs `invalidateOptionsMenu` as the last step.
-        updatePrivacyIcons(true);
-
-    }
-
-    private void loadUrlFromTextBox() throws UnsupportedEncodingException {
-        // Get the text from urlTextBox and convert it to a string.  trim() removes white spaces from the beginning and end of the string.
-        String unformattedUrlString = urlTextBox.getText().toString().trim();
-
-        URL unformattedUrl = null;
-        Uri.Builder formattedUri = new Uri.Builder();
-
-        // Check to see if unformattedUrlString is a valid URL.  Otherwise, convert it into a Duck Duck Go search.
-        if (Patterns.WEB_URL.matcher(unformattedUrlString).matches()) {
-            // Add http:// at the beginning if it is missing.  Otherwise the app will segfault.
-            if (!unformattedUrlString.startsWith("http")) {
-                unformattedUrlString = "http://" + unformattedUrlString;
-            }
-
-            // Convert unformattedUrlString to a URL, then to a URI, and then back to a string, which sanitizes the input and adds in any missing components.
-            try {
-                unformattedUrl = new URL(unformattedUrlString);
-            } catch (MalformedURLException e) {
-                e.printStackTrace();
-            }
-
-            // The ternary operator (? :) makes sure that a null pointer exception is not thrown, which would happen if .get was called on a null value.
-            final String scheme = unformattedUrl != null ? unformattedUrl.getProtocol() : null;
-            final String authority = unformattedUrl != null ? unformattedUrl.getAuthority() : null;
-            final String path = unformattedUrl != null ? unformattedUrl.getPath() : null;
-            final String query = unformattedUrl != null ? unformattedUrl.getQuery() : null;
-            final String fragment = unformattedUrl != null ? unformattedUrl.getRef() : null;
-
-            formattedUri.scheme(scheme).authority(authority).path(path).query(query).fragment(fragment);
-            formattedUrlString = formattedUri.build().toString();
-        } else {
-            // Sanitize the search input and convert it to a DuckDuckGo search.
-            final String encodedUrlString = URLEncoder.encode(unformattedUrlString, "UTF-8");
-
-            // Use the correct search URL.
-            if (javaScriptEnabled) {  // JavaScript is enabled.
-                formattedUrlString = javaScriptEnabledSearchURL + encodedUrlString;
-            } else { // JavaScript is disabled.
-                formattedUrlString = javaScriptDisabledSearchURL + encodedUrlString;
-            }
-        }
-
-        mainWebView.loadUrl(formattedUrlString, customHeaders);
-
-        // Hide the keyboard so we can see the webpage.  `0` indicates no additional flags.
-        inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
-    }
-
-    public void findPreviousOnPage(View view) {
-        // Go to the previous highlighted phrase on the page.  `false` goes backwards instead of forwards.
-        mainWebView.findNext(false);
-    }
-
-    public void findNextOnPage(View view) {
-        // Go to the next highlighted phrase on the page. `true` goes forwards instead of backwards.
-        mainWebView.findNext(true);
-    }
-
-    public void closeFindOnPage(View view) {
-        // Delete the contents of `find_on_page_edittext`.
-        findOnPageEditText.setText(null);
-
-        // Clear the highlighted phrases.
-        mainWebView.clearMatches();
-
-        // Hide the Find on Page `RelativeLayout`.
-        LinearLayout findOnPageLinearLayout = (LinearLayout) findViewById(R.id.find_on_page_linearlayout);
-        findOnPageLinearLayout.setVisibility(View.GONE);
-
-        // Show the URL app bar.
-        Toolbar appBarToolbar = (Toolbar) findViewById(R.id.appBar);
-        appBarToolbar.setVisibility(View.VISIBLE);
-
-        // Hide the keyboard so we can see the webpage.  `0` indicates no additional flags.
-        inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
-    }
-
-    private void applySettings() {
-        // Get the shared preference values.  `this` references the current context.
-        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
-
-        // Store the values from `sharedPreferences` in variables.
-        String userAgentString = sharedPreferences.getString("user_agent", "Default user agent");
-        String customUserAgentString = sharedPreferences.getString("custom_user_agent", "PrivacyBrowser/1.0");
-        String javaScriptDisabledSearchString = sharedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=");
-        String javaScriptDisabledCustomSearchString = sharedPreferences.getString("javascript_disabled_search_custom_url", "");
-        String javaScriptEnabledSearchString = sharedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=");
-        String javaScriptEnabledCustomSearchString = sharedPreferences.getString("javascript_enabled_search_custom_url", "");
-        String homepageString = sharedPreferences.getString("homepage", "https://www.duckduckgo.com");
-        String defaultFontSizeString = sharedPreferences.getString("default_font_size", "100");
-        swipeToRefreshEnabled = sharedPreferences.getBoolean("swipe_to_refresh_enabled", false);
-        boolean doNotTrackEnabled = sharedPreferences.getBoolean("do_not_track", true);
-        boolean proxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false);
-
-        // Because they can be modified on-the-fly by the user, these default settings are only applied when the program first runs.
-        if (javaScriptEnabled == null) {  // If `javaScriptEnabled` is null the program is just starting.
-            // Get the values from `sharedPreferences`.
-            javaScriptEnabled = sharedPreferences.getBoolean("javascript_enabled", false);
-            firstPartyCookiesEnabled = sharedPreferences.getBoolean("first_party_cookies_enabled", false);
-            thirdPartyCookiesEnabled = sharedPreferences.getBoolean("third_party_cookies_enabled", false);
-            domStorageEnabled = sharedPreferences.getBoolean("dom_storage_enabled", false);
-            saveFormDataEnabled = sharedPreferences.getBoolean("save_form_data_enabled", false);
-
-            // Apply the default settings.
-            mainWebView.getSettings().setJavaScriptEnabled(javaScriptEnabled);
-            cookieManager.setAcceptCookie(firstPartyCookiesEnabled);
-            mainWebView.getSettings().setDomStorageEnabled(domStorageEnabled);
-            mainWebView.getSettings().setSaveFormData(saveFormDataEnabled);
-            mainWebView.getSettings().setTextZoom(Integer.valueOf(defaultFontSizeString));
-
-            // Set third-party cookies status if API >= 21.
-            if (Build.VERSION.SDK_INT >= 21) {
-                cookieManager.setAcceptThirdPartyCookies(mainWebView, thirdPartyCookiesEnabled);
-            }
-        }
-
-        // Apply the other settings from `sharedPreferences`.
-        homepage = homepageString;
-        swipeRefreshLayout.setEnabled(swipeToRefreshEnabled);
-
-        // Set the user agent initial status.
-        switch (userAgentString) {
-            case "Default user agent":
-                // Set the user agent to `""`, which uses the default value.
-                mainWebView.getSettings().setUserAgentString("");
-                break;
-
-            case "Custom user agent":
-                // Set the custom user agent.
-                mainWebView.getSettings().setUserAgentString(customUserAgentString);
-                break;
-
-            default:
-                // Use the selected user agent.
-                mainWebView.getSettings().setUserAgentString(userAgentString);
-                break;
-        }
-
-        // Set JavaScript disabled search.
-        if (javaScriptDisabledSearchString.equals("Custom URL")) {  // Get the custom URL string.
-            javaScriptDisabledSearchURL = javaScriptDisabledCustomSearchString;
-        } else {  // Use the string from the pre-built list.
-            javaScriptDisabledSearchURL = javaScriptDisabledSearchString;
-        }
-
-        // Set JavaScript enabled search.
-        if (javaScriptEnabledSearchString.equals("Custom URL")) {  // Get the custom URL string.
-            javaScriptEnabledSearchURL = javaScriptEnabledCustomSearchString;
-        } else {  // Use the string from the pre-built list.
-            javaScriptEnabledSearchURL = javaScriptEnabledSearchString;
-        }
-
-        // Set Do Not Track status.
-        if (doNotTrackEnabled) {
-            customHeaders.put("DNT", "1");
-        } else {
-            customHeaders.remove("DNT");
-        }
-
-        // Set Orbot proxy status.
-        if (proxyThroughOrbot) {
-            // Set the proxy.  `this` refers to the current activity where an `AlertDialog` might be displayed.
-            OrbotProxyHelper.setProxy(getApplicationContext(), this, "localhost", "8118");
-        } else {  // Reset the proxy to default.  The host is `""` and the port is `"0"`.
-            OrbotProxyHelper.setProxy(getApplicationContext(), this, "", "0");
-        }
-    }
-
-    private void updatePrivacyIcons(boolean runInvalidateOptionsMenu) {
-        // Get handles for the icons.
-        MenuItem privacyIcon = mainMenu.findItem(R.id.toggleJavaScript);
-        MenuItem firstPartyCookiesIcon = mainMenu.findItem(R.id.toggleFirstPartyCookies);
-        MenuItem domStorageIcon = mainMenu.findItem(R.id.toggleDomStorage);
-        MenuItem formDataIcon = mainMenu.findItem(R.id.toggleSaveFormData);
-
-        // Update `privacyIcon`.
-        if (javaScriptEnabled) {  // JavaScript is enabled.
-            privacyIcon.setIcon(R.drawable.javascript_enabled);
-        } else if (firstPartyCookiesEnabled) {  // JavaScript is disabled but cookies are enabled.
-            privacyIcon.setIcon(R.drawable.warning);
-        } else {  // All the dangerous features are disabled.
-            privacyIcon.setIcon(R.drawable.privacy_mode);
-        }
-
-        // Update `firstPartyCookiesIcon`.
-        if (firstPartyCookiesEnabled) {  // First-party cookies are enabled.
-            firstPartyCookiesIcon.setIcon(R.drawable.cookies_enabled);
-        } else {  // First-party cookies are disabled.
-            firstPartyCookiesIcon.setIcon(R.drawable.cookies_disabled);
-        }
-
-        // Update `domStorageIcon`.
-        if (javaScriptEnabled && domStorageEnabled) {  // Both JavaScript and DOM storage are enabled.
-            domStorageIcon.setIcon(R.drawable.dom_storage_enabled);
-        } else if (javaScriptEnabled) {  // JavaScript is enabled but DOM storage is disabled.
-            domStorageIcon.setIcon(R.drawable.dom_storage_disabled);
-        } else {  // JavaScript is disabled, so DOM storage is ghosted.
-            domStorageIcon.setIcon(R.drawable.dom_storage_ghosted);
-        }
-
-        // Update `formDataIcon`.
-        if (saveFormDataEnabled) {  // Form data is enabled.
-            formDataIcon.setIcon(R.drawable.form_data_enabled);
-        } else {  // Form data is disabled.
-            formDataIcon.setIcon(R.drawable.form_data_disabled);
-        }
-
-        // `invalidateOptionsMenu` calls `onPrepareOptionsMenu()` and redraws the icons in the `AppBar`.  `this` references the current activity.
-        if (runInvalidateOptionsMenu) {
-            ActivityCompat.invalidateOptionsMenu(this);
-        }
-    }
-}