+ // Get a handle for the progress bar.
+ final ProgressBar progressBar = findViewById(R.id.progress_bar);
+
+ mainWebView.setWebChromeClient(new WebChromeClient() {
+ // Update the progress bar when a page is loading.
+ @Override
+ public void onProgressChanged(WebView view, int progress) {
+ // Inject the night mode CSS if night mode is enabled.
+ if (nightMode) {
+ // `background-color: #212121` sets the background to be dark gray. `color: #BDBDBD` sets the text color to be light gray. `box-shadow: none` removes a lower underline on links
+ // used by WordPress. `text-decoration: none` removes all text underlines. `text-shadow: none` removes text shadows, which usually have a hard coded color.
+ // `border: none` removes all borders, which can also be used to underline text.
+ // `a {color: #1565C0}` sets links to be a dark blue. `!important` takes precedent over any existing sub-settings.
+ mainWebView.evaluateJavascript("(function() {var parent = document.getElementsByTagName('head').item(0); var style = document.createElement('style'); style.type = 'text/css'; " +
+ "style.innerHTML = '* {background-color: #212121 !important; color: #BDBDBD !important; box-shadow: none !important; text-decoration: none !important;" +
+ "text-shadow: none !important; border: none !important;} a {color: #1565C0 !important;}'; parent.appendChild(style)})()", value -> {
+ // Initialize a `Handler` to display `mainWebView`.
+ Handler displayWebViewHandler = new Handler();
+
+ // Setup a `Runnable` to display `mainWebView` after a delay to allow the CSS to be applied.
+ Runnable displayWebViewRunnable = () -> {
+ // Only display `mainWebView` if the progress bar is one. This prevents the display of the `WebView` while it is still loading.
+ if (progressBar.getVisibility() == View.GONE) {
+ mainWebView.setVisibility(View.VISIBLE);
+ }
+ };
+
+ // Use `displayWebViewHandler` to delay the displaying of `mainWebView` for 500 milliseconds.
+ displayWebViewHandler.postDelayed(displayWebViewRunnable, 500);
+ });
+ }
+
+ // Update the progress bar.
+ progressBar.setProgress(progress);
+
+ // Set the visibility of the progress bar.
+ if (progress < 100) {
+ // Show the progress bar.
+ progressBar.setVisibility(View.VISIBLE);
+ } else {
+ // Hide the progress bar.
+ progressBar.setVisibility(View.GONE);
+
+ // Display `mainWebView` if night mode is disabled.
+ // Because of a race condition between `applyDomainSettings` and `onPageStarted`, when night mode is set by domain settings the `WebView` may be hidden even if night mode is not
+ // currently enabled.
+ if (!nightMode) {
+ mainWebView.setVisibility(View.VISIBLE);
+ }
+
+ //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) {
+ // Only update the favorite icon if the website has finished loading.
+ if (progressBar.getVisibility() == View.GONE) {
+ // Save a copy of the favorite icon.
+ favoriteIconBitmap = icon;
+
+ // Place the favorite icon in the appBar.
+ favoriteIconImageView.setImageBitmap(Bitmap.createScaledBitmap(icon, 64, 64, true));
+ }
+ }
+
+ // Save a copy of the title when it changes.
+ @Override
+ public void onReceivedTitle(WebView view, String title) {
+ // Save a copy of the title.
+ webViewTitle = title;
+ }
+
+ // Enter full screen video
+ @Override
+ public void onShowCustomView(View view, CustomViewCallback callback) {
+ // Pause the ad if this is the free flavor.
+ if (BuildConfig.FLAVOR.contentEquals("free")) {
+ BannerAd.pauseAd(adView);
+ }
+
+ // Remove the translucent overlays.
+ getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+
+ // Remove the translucent status bar overlay on the `Drawer Layout`, which is special and needs its own command.
+ drawerLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
+
+ /* SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
+ * SYSTEM_UI_FLAG_HIDE_NAVIGATION hides the navigation bar on the bottom or right of the screen.
+ * SYSTEM_UI_FLAG_IMMERSIVE_STICKY makes the status and navigation bars translucent and automatically re-hides them after they are shown.
+ */
+ rootCoordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
+
+ // Set `rootCoordinatorLayout` to fill the entire screen.
+ rootCoordinatorLayout.setFitsSystemWindows(false);
+
+ // Add `view` to `fullScreenVideoFrameLayout` and display it on the screen.
+ fullScreenVideoFrameLayout.addView(view);
+ fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
+ }
+
+ // Exit full screen video
+ public void onHideCustomView() {
+ // Hide `fullScreenVideoFrameLayout`.
+ fullScreenVideoFrameLayout.removeAllViews();
+ fullScreenVideoFrameLayout.setVisibility(View.GONE);
+
+ // Add the translucent status flag. This also resets `drawerLayout's` `View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`.
+ getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+
+ // Set `rootCoordinatorLayout` to fit inside the status and navigation bars. This also clears the `SYSTEM_UI` flags.
+ rootCoordinatorLayout.setFitsSystemWindows(true);
+
+ // Show the ad if this is the free flavor.
+ if (BuildConfig.FLAVOR.contentEquals("free")) {
+ // Reload the ad. Because the screen may have rotated, we need to use `reloadAfterRotate`.
+ BannerAd.reloadAfterRotate(adView, getApplicationContext(), getString(R.string.ad_id));
+
+ // Reinitialize the `adView` variable, as the `View` will have been removed and re-added by `BannerAd.reloadAfterRotate()`.
+ adView = findViewById(R.id.adview);
+ }
+ }
+ });
+
+ // 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((String url, String userAgent, String contentDisposition, String mimetype, long contentLength) -> {
+ // Show the `DownloadFileDialog` `AlertDialog` and name this instance `@string/download`.
+ AppCompatDialogFragment downloadFileDialogFragment = DownloadFileDialog.fromUrl(url, contentDisposition, contentLength);
+ downloadFileDialogFragment.show(getSupportFragmentManager(), getString(R.string.download));
+ });
+
+ // Allow pinch to zoom.
+ mainWebView.getSettings().setBuiltInZoomControls(true);
+
+ // Hide zoom controls.
+ mainWebView.getSettings().setDisplayZoomControls(false);
+
+ // Set `mainWebView` to use a wide viewport. Otherwise, some web pages will be scrunched and some content will render outside the screen.
+ mainWebView.getSettings().setUseWideViewPort(true);
+
+ // Set `mainWebView` to load in overview mode (zoomed out to the maximum width).
+ mainWebView.getSettings().setLoadWithOverviewMode(true);
+
+ // Explicitly disable geolocation.
+ mainWebView.getSettings().setGeolocationEnabled(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. `this` is the context. `false` keeps this command from resetting any current preferences back to default.
+ PreferenceManager.setDefaultValues(this, R.xml.preferences, false);
+
+ // Get the intent that started the app.
+ final Intent launchingIntent = getIntent();
+
+ // Extract the launching intent data as `launchingIntentUriData`.
+ final Uri launchingIntentUriData = launchingIntent.getData();
+
+ // Convert the launching intent URI data (if it exists) to a string and store it in `formattedUrlString`.
+ if (launchingIntentUriData != null) {
+ formattedUrlString = launchingIntentUriData.toString();
+ }
+
+ // Get a handle for the `Runtime`.
+ privacyBrowserRuntime = Runtime.getRuntime();
+
+ // Store the application's private data directory.
+ privateDataDirectoryString = getApplicationInfo().dataDir;
+ // `dataDir` will vary, but will be something like `/data/user/0/com.stoutner.privacybrowser.standard`, which links to `/data/data/com.stoutner.privacybrowser.standard`.
+
+ // Initialize `inFullScreenBrowsingMode`, which is always false at this point because Privacy Browser never starts in full screen browsing mode.
+ inFullScreenBrowsingMode = false;
+
+ // Initialize AdView for the free flavor.
+ adView = findViewById(R.id.adview);
+
+ // Initialize the privacy settings variables.
+ javaScriptEnabled = false;
+ firstPartyCookiesEnabled = false;
+ thirdPartyCookiesEnabled = false;
+ domStorageEnabled = false;
+ saveFormDataEnabled = false;
+ nightMode = false;
+
+ // Initialize `webViewTitle`.
+ webViewTitle = getString(R.string.no_title);
+
+ // Initialize `favoriteIconBitmap`. `ContextCompat` must be used until API >= 21.
+ Drawable favoriteIconDrawable = ContextCompat.getDrawable(getApplicationContext(), R.drawable.world);
+ BitmapDrawable favoriteIconBitmapDrawable = (BitmapDrawable) favoriteIconDrawable;
+ assert favoriteIconBitmapDrawable != null;
+ favoriteIconDefaultBitmap = favoriteIconBitmapDrawable.getBitmap();
+
+ // If the favorite icon is null, load the default.
+ if (favoriteIconBitmap == null) {
+ favoriteIconBitmap = favoriteIconDefaultBitmap;
+ }
+
+ // Apply the app settings from the shared preferences.
+ applyAppSettings();
+
+ // Instantiate the block list helper.
+ BlockListHelper blockListHelper = new BlockListHelper();
+
+ // Parse the block lists.
+ final ArrayList<List<String[]>> easyList = blockListHelper.parseBlockList(getAssets(), "blocklists/easylist.txt");
+ final ArrayList<List<String[]>> easyPrivacy = blockListHelper.parseBlockList(getAssets(), "blocklists/easyprivacy.txt");
+ final ArrayList<List<String[]>> fanboyAnnoyance = blockListHelper.parseBlockList(getAssets(), "blocklists/fanboy-annoyance.txt");
+ final ArrayList<List<String[]>> fanboySocial = blockListHelper.parseBlockList(getAssets(), "blocklists/fanboy-social.txt");
+
+ // Store the list versions.
+ easyListVersion = easyList.get(0).get(0)[0];
+ easyPrivacyVersion = easyPrivacy.get(0).get(0)[0];
+ fanboyAnnoyanceVersion = fanboyAnnoyance.get(0).get(0)[0];
+ fanboySocialVersion = fanboySocial.get(0).get(0)[0];
+