]> gitweb.stoutner.com Git - PrivacyBrowserAndroid.git/blobdiff - app/src/main/java/com/stoutner/privacybrowser/activities/MainWebViewActivity.java
Update Download with External App summary. https://redmine.stoutner.com/issues/921
[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / activities / MainWebViewActivity.java
index 2b9ad6376d95ea13ab2b23eed18fba1de73534c3..1ee31db40a03cb8dfe9996eacfeaa79140aa230e 100644 (file)
@@ -1,5 +1,5 @@
 /*
- * Copyright © 2015-2022 Soren Stoutner <soren@stoutner.com>.
+ * Copyright 2015-2022 Soren Stoutner <soren@stoutner.com>.
  *
  * Download cookie code contributed 2017 Hendrik Knackstedt.  Copyright assigned to Soren Stoutner <soren@stoutner.com>.
  *
@@ -99,6 +99,7 @@ import android.widget.RadioButton;
 import android.widget.RelativeLayout;
 import android.widget.TextView;
 
+import androidx.activity.OnBackPressedCallback;
 import androidx.activity.result.ActivityResultCallback;
 import androidx.activity.result.ActivityResultLauncher;
 import androidx.activity.result.contract.ActivityResultContracts;
@@ -189,9 +190,9 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         WebViewTabFragment.NewTabListener {
 
     // Define the public static variables.
-    public static ExecutorService executorService = Executors.newFixedThreadPool(4);
+    public static final ExecutorService executorService = Executors.newFixedThreadPool(4);
     public static String orbotStatus = "unknown";
-    public static ArrayList<PendingDialog> pendingDialogsArrayList =  new ArrayList<>();
+    public static final ArrayList<PendingDialog> pendingDialogsArrayList =  new ArrayList<>();
     public static String proxyMode = ProxyHelper.NONE;
 
     // Declare the public static variables.
@@ -278,6 +279,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
     // Declare the class variables
     private boolean bottomAppBar;
+    private boolean displayAdditionalAppBarIcons;
     private boolean displayingFullScreenVideo;
     private boolean downloadWithExternalApp;
     private boolean fullScreenBrowsingModeEnabled;
@@ -368,7 +370,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
     private Activity resultLauncherActivityHandle;
 
     // Define the save URL activity result launcher.  It must be defined before `onCreate()` is run or the app will crash.
-    private final ActivityResultLauncher<String> saveUrlActivityResultLauncher = registerForActivityResult(new ActivityResultContracts.CreateDocument("text/*"),
+    private final ActivityResultLauncher<String> saveUrlActivityResultLauncher = registerForActivityResult(new ActivityResultContracts.CreateDocument("*/*"),
             new ActivityResultCallback<Uri>() {
                 @Override
                 public void onActivityResult(Uri fileUri) {
@@ -389,11 +391,30 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 public void onActivityResult(Uri fileUri) {
                     // Only save the webpage archive if the file URI is not null, which happens if the user exited the file picker by pressing back.
                     if (fileUri != null) {
+                        // Initialize the file name string from the file URI last path segment.
+                        String temporaryFileNameString = fileUri.getLastPathSegment();
+
+                        // Query the exact file name if the API >= 26.
+                        if (Build.VERSION.SDK_INT >= 26) {
+                            // Get a cursor from the content resolver.
+                            Cursor contentResolverCursor = resultLauncherActivityHandle.getContentResolver().query(fileUri, null, null, null);
+
+                            // Move to the fist row.
+                            contentResolverCursor.moveToFirst();
+
+                            // Get the file name from the cursor.
+                            temporaryFileNameString = contentResolverCursor.getString(contentResolverCursor.getColumnIndexOrThrow(OpenableColumns.DISPLAY_NAME));
+
+                            // Close the cursor.
+                            contentResolverCursor.close();
+                        }
+
+                        // Save the final file name string so it can be used inside the lambdas.  This will no longer be needed once this activity has transitioned to Kotlin.
+                        String finalFileNameString = temporaryFileNameString;
+
                         try {
                             // Create a temporary MHT file.
                             File temporaryMhtFile = File.createTempFile("temporary_mht_file", ".mht", getCacheDir());
-
-                            // Save the temporary MHT file.
                             currentWebView.saveWebArchive(temporaryMhtFile.toString(), false, callbackValue -> {
                                 if (callbackValue != null) {  // The temporary MHT file was saved successfully.
                                     try {
@@ -418,29 +439,11 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                                         mhtOutputStream.close();
                                         temporaryMhtFileInputStream.close();
 
-                                        // Initialize the file name string from the file URI last path segment.
-                                        String fileNameString = fileUri.getLastPathSegment();
-
-                                        // Query the exact file name if the API >= 26.
-                                        if (Build.VERSION.SDK_INT >= 26) {
-                                            // Get a cursor from the content resolver.
-                                            Cursor contentResolverCursor = resultLauncherActivityHandle.getContentResolver().query(fileUri, null, null, null);
-
-                                            // Move to the fist row.
-                                            contentResolverCursor.moveToFirst();
-
-                                            // Get the file name from the cursor.
-                                            fileNameString = contentResolverCursor.getString(contentResolverCursor.getColumnIndexOrThrow(OpenableColumns.DISPLAY_NAME));
-
-                                            // Close the cursor.
-                                            contentResolverCursor.close();
-                                        }
-
                                         // Display a snackbar.
-                                        Snackbar.make(currentWebView, getString(R.string.file_saved) + "  " + fileNameString, Snackbar.LENGTH_SHORT).show();
+                                        Snackbar.make(currentWebView, getString(R.string.saved, finalFileNameString), Snackbar.LENGTH_SHORT).show();
                                     } catch (Exception exception) {
                                         // Display a snackbar with the exception.
-                                        Snackbar.make(currentWebView, getString(R.string.error_saving_file) + "  " + exception, Snackbar.LENGTH_INDEFINITE).show();
+                                        Snackbar.make(currentWebView, getString(R.string.error_saving_file, finalFileNameString, exception), Snackbar.LENGTH_INDEFINITE).show();
                                     } finally {
                                         // Delete the temporary MHT file.
                                         //noinspection ResultOfMethodCallIgnored
@@ -448,12 +451,12 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                                     }
                                 } else {  // There was an unspecified error while saving the temporary MHT file.
                                     // Display an error snackbar.
-                                    Snackbar.make(currentWebView, getString(R.string.error_saving_file), Snackbar.LENGTH_INDEFINITE).show();
+                                    Snackbar.make(currentWebView, getString(R.string.error_saving_file, finalFileNameString, getString(R.string.unknown_error)), Snackbar.LENGTH_INDEFINITE).show();
                                 }
                             });
                         } catch (IOException ioException) {
                             // Display a snackbar with the IO exception.
-                            Snackbar.make(currentWebView, getString(R.string.error_saving_file) + "  " + ioException, Snackbar.LENGTH_INDEFINITE).show();
+                            Snackbar.make(currentWebView, getString(R.string.error_saving_file, finalFileNameString, ioException), Snackbar.LENGTH_INDEFINITE).show();
                         }
                     }
                 }
@@ -498,9 +501,10 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
 
         // Get the preferences.
-        String appTheme = sharedPreferences.getString("app_theme", getString(R.string.app_theme_default_value));
+        String appTheme = sharedPreferences.getString(getString(R.string.app_theme_key), getString(R.string.app_theme_default_value));
         boolean allowScreenshots = sharedPreferences.getBoolean(getString(R.string.allow_screenshots_key), false);
         bottomAppBar = sharedPreferences.getBoolean(getString(R.string.bottom_app_bar_key), false);
+        displayAdditionalAppBarIcons = sharedPreferences.getBoolean(getString(R.string.display_additional_app_bar_icons_key), false);
 
         // Get the theme entry values string array.
         String[] appThemeEntryValuesStringArray = getResources().getStringArray(R.array.app_theme_entry_values);
@@ -586,6 +590,9 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         // Initially disable the sliding drawers.  They will be enabled once the blocklists are loaded.
         drawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED);
 
+        // Initially hide the user interface so that only the blocklist loading screen is shown (if reloading).
+        drawerLayout.setVisibility(View.GONE);
+
         // Initialize the web view pager adapter.
         webViewPagerAdapter = new WebViewPagerAdapter(getSupportFragmentManager());
 
@@ -607,6 +614,48 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         // Apply the app settings from the shared preferences.
         applyAppSettings();
 
+        // Control what the system back command does.
+        OnBackPressedCallback onBackPressedCallback = new OnBackPressedCallback(true) {
+            @Override
+            public void handleOnBackPressed() {
+                // Process the different back options.
+                if (drawerLayout.isDrawerVisible(GravityCompat.START)) {  // The navigation drawer is open.
+                    // Close the navigation drawer.
+                    drawerLayout.closeDrawer(GravityCompat.START);
+                } else if (drawerLayout.isDrawerVisible(GravityCompat.END)){  // The bookmarks drawer is open.
+                    // close the bookmarks drawer.
+                    drawerLayout.closeDrawer(GravityCompat.END);
+                } else if (displayingFullScreenVideo) {  // A full screen video is shown.
+                    // Exit the full screen video.
+                    exitFullScreenVideo();
+                } else if (currentWebView.canGoBack()) {  // There is at least one item in the current WebView history.
+                    // Get the current web back forward list.
+                    WebBackForwardList webBackForwardList = currentWebView.copyBackForwardList();
+
+                    // Get the previous entry URL.
+                    String previousUrl = webBackForwardList.getItemAtIndex(webBackForwardList.getCurrentIndex() - 1).getUrl();
+
+                    // Apply the domain settings.
+                    applyDomainSettings(currentWebView, previousUrl, false, false, false);
+
+                    // Go back.
+                    currentWebView.goBack();
+                } else if (tabLayout.getTabCount() > 1) {  // There are at least two tabs.
+                    // Close the current tab.
+                    closeCurrentTab();
+                } else {  // There isn't anything to do in Privacy Browser.
+                    // Close Privacy Browser.  `finishAndRemoveTask()` also removes Privacy Browser from the recent app list.
+                    finishAndRemoveTask();
+
+                    // Manually kill Privacy Browser.  Otherwise, it is glitchy when restarted.
+                    System.exit(0);
+                }
+            }
+        };
+
+        // Register the on back pressed callback.
+        getOnBackPressedDispatcher().addCallback(this, onBackPressedCallback);
+
         // Populate the blocklists.
         populateBlocklists = new PopulateBlocklists(this, this).execute();
     }
@@ -666,7 +715,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 }
 
                 // Add a new tab if specified in the preferences.
-                if (sharedPreferences.getBoolean("open_intents_in_new_tab", true)) {  // Load the URL in a new tab.
+                if (sharedPreferences.getBoolean(getString(R.string.open_intents_in_new_tab_key), true)) {  // Load the URL in a new tab.
                     // Set the loading new intent flag.
                     loadingNewIntent = true;
 
@@ -973,12 +1022,6 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         // Disable the clear form data menu item if the API >= 26 so that the status of the main Clear Data is calculated correctly.
         optionsClearFormDataMenuItem.setEnabled(Build.VERSION.SDK_INT < 26);
 
-        // Get the shared preferences.
-        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
-
-        // Get the dark theme and app bar preferences.
-        boolean displayAdditionalAppBarIcons = sharedPreferences.getBoolean(getString(R.string.display_additional_app_bar_icons_key), false);
-
         // Set the status of the additional app bar icons.  Setting the refresh menu item to `SHOW_AS_ACTION_ALWAYS` makes it appear even on small devices like phones.
         if (displayAdditionalAppBarIcons) {
             optionsRefreshMenuItem.setShowAsAction(MenuItem.SHOW_AS_ACTION_ALWAYS);
@@ -2194,6 +2237,15 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
             // Make it so.
             startActivity(logcatIntent);
+        } else if (menuItemId == R.id.webview_devtools) {  // WebView Dev.
+            // Create a WebView DevTools intent.
+            Intent webViewDevToolsIntent = new Intent("com.android.webview.SHOW_DEV_UI");
+
+            // Launch as a new task so that the WebView DevTools and Privacy Browser show as a separate windows in the recent tasks list.
+            webViewDevToolsIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+
+            // Make it so.
+            startActivity(webViewDevToolsIntent);
         } else if (menuItemId == R.id.guide) {  // Guide.
             // Create an intent to launch the guide activity.
             Intent guideIntent = new Intent(this, GuideActivity.class);
@@ -2673,7 +2725,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         // Update the bookmarks cursor with the current contents of this folder.
         bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentBookmarksFolder);
 
-        // Update the `ListView`.
+        // Update the list view.
         bookmarksCursorAdapter.changeCursor(bookmarksCursor);
 
         // Scroll to the new folder.
@@ -2767,47 +2819,10 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         // Update the bookmarks cursor with the current contents of this folder.
         bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentBookmarksFolder);
 
-        // Update the `ListView`.
+        // Update the list view.
         bookmarksCursorAdapter.changeCursor(bookmarksCursor);
     }
 
-    // Override `onBackPressed()` to handle the navigation drawer and and the WebViews.
-    @Override
-    public void onBackPressed() {
-        // Check the different options for processing `back`.
-        if (drawerLayout.isDrawerVisible(GravityCompat.START)) {  // The navigation drawer is open.
-            // Close the navigation drawer.
-            drawerLayout.closeDrawer(GravityCompat.START);
-        } else if (drawerLayout.isDrawerVisible(GravityCompat.END)){  // The bookmarks drawer is open.
-            // close the bookmarks drawer.
-            drawerLayout.closeDrawer(GravityCompat.END);
-        } else if (displayingFullScreenVideo) {  // A full screen video is shown.
-            // Exit the full screen video.
-            exitFullScreenVideo();
-        } else if (currentWebView.canGoBack()) {  // There is at least one item in the current WebView history.
-            // Get the current web back forward list.
-            WebBackForwardList webBackForwardList = currentWebView.copyBackForwardList();
-
-            // Get the previous entry URL.
-            String previousUrl = webBackForwardList.getItemAtIndex(webBackForwardList.getCurrentIndex() - 1).getUrl();
-
-            // Apply the domain settings.
-            applyDomainSettings(currentWebView, previousUrl, false, false, false);
-
-            // Go back.
-            currentWebView.goBack();
-        } else if (tabLayout.getTabCount() > 1) {  // There are at least two tabs.
-            // Close the current tab.
-            closeCurrentTab();
-        } else {  // There isn't anything to do in Privacy Browser.
-            // Close Privacy Browser.  `finishAndRemoveTask()` also removes Privacy Browser from the recent app list.
-            finishAndRemoveTask();
-
-            // Manually kill Privacy Browser.  Otherwise, it is glitchy when restarted.
-            System.exit(0);
-        }
-    }
-
     // Process the results of a file browse.
     @Override
     public void onActivityResult(int requestCode, int resultCode, Intent returnedIntent) {
@@ -3104,19 +3119,10 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         // Remove the lint warning below that the input method manager might be null.
         assert inputMethodManager != null;
 
-        // Initialize the gray foreground color spans for highlighting the URLs.
+        // Initialize the color spans for highlighting the URLs.
         initialGrayColorSpan = new ForegroundColorSpan(getColor(R.color.gray_500));
         finalGrayColorSpan = new ForegroundColorSpan(getColor(R.color.gray_500));
-
-        // Get the current theme status.
-        int currentThemeStatus = getResources().getConfiguration().uiMode & Configuration.UI_MODE_NIGHT_MASK;
-
-        // Set the red color span according to the theme.
-        if (currentThemeStatus == Configuration.UI_MODE_NIGHT_NO) {
-            redColorSpan = new ForegroundColorSpan(getColor(R.color.red_a700));
-        } else {
-            redColorSpan = new ForegroundColorSpan(getColor(R.color.red_900));
-        }
+        redColorSpan = new ForegroundColorSpan(getColor(R.color.red_text));
 
         // Remove the formatting from the URL edit text when the user is editing the text.
         urlEditText.setOnFocusChangeListener((View v, boolean hasFocus) -> {
@@ -3452,11 +3458,11 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 // Move the bookmark cursor to the first row.
                 bookmarkCursor.moveToFirst();
 
-                // Load the bookmark in a new tab but do not switch to the tab or close the drawer.
-                addNewTab(bookmarkCursor.getString(bookmarkCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_URL)), false);
+                // Load the bookmark in a new tab.
+                addNewTab(bookmarkCursor.getString(bookmarkCursor.getColumnIndexOrThrow(BookmarksDatabaseHelper.BOOKMARK_URL)), true);
 
-                // Display a snackbar.
-                Snackbar.make(drawerLayout, R.string.bookmark_opened_in_background, Snackbar.LENGTH_SHORT).show();
+                // Close the bookmarks drawer.
+                drawerLayout.closeDrawer(GravityCompat.END);
             }
 
             // Consume the event.
@@ -3523,13 +3529,13 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
 
         // Store the values from the shared preferences in variables.
-        incognitoModeEnabled = sharedPreferences.getBoolean("incognito_mode", false);
+        incognitoModeEnabled = sharedPreferences.getBoolean(getString(R.string.incognito_mode_key), false);
         sanitizeTrackingQueries = sharedPreferences.getBoolean(getString(R.string.tracking_queries_key), true);
         sanitizeAmpRedirects = sharedPreferences.getBoolean(getString(R.string.amp_redirects_key), true);
-        proxyMode = sharedPreferences.getString("proxy", getString(R.string.proxy_default_value));
-        fullScreenBrowsingModeEnabled = sharedPreferences.getBoolean("full_screen_browsing_mode", false);
+        proxyMode = sharedPreferences.getString(getString(R.string.proxy_key), getString(R.string.proxy_default_value));
+        fullScreenBrowsingModeEnabled = sharedPreferences.getBoolean(getString(R.string.full_screen_browsing_mode_key), false);
+        hideAppBar = sharedPreferences.getBoolean(getString(R.string.hide_app_bar_key), true);
         downloadWithExternalApp = sharedPreferences.getBoolean(getString(R.string.download_with_external_app_key), false);
-        hideAppBar = sharedPreferences.getBoolean("hide_app_bar", true);
         scrollAppBar = sharedPreferences.getBoolean(getString(R.string.scroll_app_bar_key), true);
 
         // Apply the saved proxy mode if the app has been restarted.
@@ -3542,14 +3548,13 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         }
 
         // Get the search string.
-        String searchString = sharedPreferences.getString("search", getString(R.string.search_default_value));
+        String searchString = sharedPreferences.getString(getString(R.string.search_key), getString(R.string.search_default_value));
 
         // Set the search string.
-        if (searchString.equals("Custom URL")) {  // A custom search string is used.
-            searchURL = sharedPreferences.getString("search_custom_url", getString(R.string.search_custom_url_default_value));
-        } else {  // A custom search string is not used.
+        if (searchString.equals(getString(R.string.custom_url_item)))
+            searchURL = sharedPreferences.getString(getString(R.string.search_custom_url_key), getString(R.string.search_custom_url_default_value));
+        else
             searchURL = searchString;
-        }
 
         // Apply the proxy.
         applyProxy(false);
@@ -3796,7 +3801,6 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
             SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
 
             // Store the general preference information.
-            boolean defaultXRequestedWithHeader = sharedPreferences.getBoolean(getString(R.string.x_requested_with_header_key), true);
             String defaultFontSizeString = sharedPreferences.getString(getString(R.string.font_size_key), getString(R.string.font_size_default_value));
             String defaultUserAgentName = sharedPreferences.getString(getString(R.string.user_agent_key), getString(R.string.user_agent_default_value));
             boolean defaultSwipeToRefresh = sharedPreferences.getBoolean(getString(R.string.swipe_to_refresh_key), true);
@@ -3842,7 +3846,6 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 nestedScrollWebView.setBlockAllThirdPartyRequests(currentDomainSettingsCursor.getInt(currentDomainSettingsCursor.getColumnIndexOrThrow(
                         DomainsDatabaseHelper.BLOCK_ALL_THIRD_PARTY_REQUESTS)) == 1);
                 String userAgentName = currentDomainSettingsCursor.getString(currentDomainSettingsCursor.getColumnIndexOrThrow(DomainsDatabaseHelper.USER_AGENT));
-                int xRequestedWithHeaderInt = currentDomainSettingsCursor.getInt(currentDomainSettingsCursor.getColumnIndexOrThrow(DomainsDatabaseHelper.X_REQUESTED_WITH_HEADER));
                 int fontSize = currentDomainSettingsCursor.getInt(currentDomainSettingsCursor.getColumnIndexOrThrow(DomainsDatabaseHelper.FONT_SIZE));
                 int swipeToRefreshInt = currentDomainSettingsCursor.getInt(currentDomainSettingsCursor.getColumnIndexOrThrow(DomainsDatabaseHelper.SWIPE_TO_REFRESH));
                 int webViewThemeInt = currentDomainSettingsCursor.getInt(currentDomainSettingsCursor.getColumnIndexOrThrow(DomainsDatabaseHelper.WEBVIEW_THEME));
@@ -3882,24 +3885,6 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                     nestedScrollWebView.getSettings().setSaveFormData(saveFormData);
                 }
 
-                // Set the X-Requested-With header.
-                switch (xRequestedWithHeaderInt) {
-                    case DomainsDatabaseHelper.SYSTEM_DEFAULT:
-                        if (defaultXRequestedWithHeader)
-                            nestedScrollWebView.setXRequestedWithHeader();
-                        else
-                            nestedScrollWebView.resetXRequestedWithHeader();
-                        break;
-
-                    case DomainsDatabaseHelper.ENABLED:
-                        nestedScrollWebView.setXRequestedWithHeader();
-                        break;
-
-                    case DomainsDatabaseHelper.DISABLED:
-                        nestedScrollWebView.resetXRequestedWithHeader();
-                        break;
-                }
-
                 // Apply the font size.
                 try {  // Try the specified font size to see if it is valid.
                     if (fontSize == 0) {  // Apply the default font size.
@@ -4101,17 +4086,17 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 urlRelativeLayout.setBackground(ResourcesCompat.getDrawable(getResources(), R.drawable.domain_settings_url_background, null));
             } else {  // The new URL does not have custom domain settings.  Load the defaults.
                 // Store the values from the shared preferences.
-                nestedScrollWebView.getSettings().setJavaScriptEnabled(sharedPreferences.getBoolean("javascript", false));
+                nestedScrollWebView.getSettings().setJavaScriptEnabled(sharedPreferences.getBoolean(getString(R.string.javascript_key), false));
                 nestedScrollWebView.setAcceptCookies(sharedPreferences.getBoolean(getString(R.string.cookies_key), false));
-                nestedScrollWebView.getSettings().setDomStorageEnabled(sharedPreferences.getBoolean("dom_storage", false));
-                boolean saveFormData = sharedPreferences.getBoolean("save_form_data", false);  // Form data can be removed once the minimum API >= 26.
-                nestedScrollWebView.setEasyListEnabled(sharedPreferences.getBoolean("easylist", true));
-                nestedScrollWebView.setEasyPrivacyEnabled(sharedPreferences.getBoolean("easyprivacy", true));
-                nestedScrollWebView.setFanboysAnnoyanceListEnabled(sharedPreferences.getBoolean("fanboys_annoyance_list", true));
-                nestedScrollWebView.setFanboysSocialBlockingListEnabled(sharedPreferences.getBoolean("fanboys_social_blocking_list", true));
-                nestedScrollWebView.setUltraListEnabled(sharedPreferences.getBoolean("ultralist", true));
-                nestedScrollWebView.setUltraPrivacyEnabled(sharedPreferences.getBoolean("ultraprivacy", true));
-                nestedScrollWebView.setBlockAllThirdPartyRequests(sharedPreferences.getBoolean("block_all_third_party_requests", false));
+                nestedScrollWebView.getSettings().setDomStorageEnabled(sharedPreferences.getBoolean(getString(R.string.dom_storage_key), false));
+                boolean saveFormData = sharedPreferences.getBoolean(getString(R.string.save_form_data_key), false);  // Form data can be removed once the minimum API >= 26.
+                nestedScrollWebView.setEasyListEnabled(sharedPreferences.getBoolean(getString(R.string.easylist_key), true));
+                nestedScrollWebView.setEasyPrivacyEnabled(sharedPreferences.getBoolean(getString(R.string.easyprivacy_key), true));
+                nestedScrollWebView.setFanboysAnnoyanceListEnabled(sharedPreferences.getBoolean(getString(R.string.fanboys_annoyance_list_key), true));
+                nestedScrollWebView.setFanboysSocialBlockingListEnabled(sharedPreferences.getBoolean(getString(R.string.fanboys_social_blocking_list_key), true));
+                nestedScrollWebView.setUltraListEnabled(sharedPreferences.getBoolean(getString(R.string.ultralist_key), true));
+                nestedScrollWebView.setUltraPrivacyEnabled(sharedPreferences.getBoolean(getString(R.string.ultraprivacy_key), true));
+                nestedScrollWebView.setBlockAllThirdPartyRequests(sharedPreferences.getBoolean(getString(R.string.block_all_third_party_requests_key), false));
 
                 // Apply the default cookie setting.
                 cookieManager.setAcceptCookie(nestedScrollWebView.getAcceptCookies());
@@ -4130,12 +4115,6 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                     nestedScrollWebView.getSettings().setSaveFormData(saveFormData);
                 }
 
-                // Store the X-Requested-With header status in the nested scroll WebView.
-                if (defaultXRequestedWithHeader)
-                    nestedScrollWebView.setXRequestedWithHeader();
-                else
-                    nestedScrollWebView.resetXRequestedWithHeader();
-
                 // Store the swipe to refresh status in the nested scroll WebView.
                 nestedScrollWebView.setSwipeToRefresh(defaultSwipeToRefresh);
 
@@ -4243,7 +4222,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
         // Load the URL if directed.  This makes sure that the domain settings are properly loaded before the URL.  By using `loadUrl()`, instead of `loadUrlFromBase()`, the Referer header will never be sent.
         if (loadUrl) {
-            nestedScrollWebView.loadUrl(url, nestedScrollWebView.getXRequestedWithHeader());
+            nestedScrollWebView.loadUrl(url);
         }
     }
 
@@ -4334,27 +4313,31 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 } else {
                     appBarLayout.setBackgroundResource(R.color.dark_blue_30);
                 }
+                // Get the package manager.
+                PackageManager packageManager = getPackageManager();
 
                 // Check to see if I2P is installed.
                 try {
-                    // Get the package manager.
-                    PackageManager packageManager = getPackageManager();
-
-                    // Check to see if I2P is in the list.  This will throw an error and drop to the catch section if it isn't installed.
+                    // Check to see if the F-Droid flavor is installed.  This will throw an error and drop to the catch section if it isn't installed.
                     packageManager.getPackageInfo("net.i2p.android.router", 0);
-                } catch (PackageManager.NameNotFoundException exception) {  // I2P is not installed.
-                    // Sow the I2P not installed dialog if it is not already displayed.
-                    if (getSupportFragmentManager().findFragmentByTag(getString(R.string.proxy_not_installed_dialog)) == null) {
-                        // Get a handle for the waiting for proxy alert dialog.
-                        DialogFragment i2pNotInstalledDialogFragment = ProxyNotInstalledDialog.displayDialog(proxyMode);
+                } catch (PackageManager.NameNotFoundException fdroidException) {  // The F-Droid flavor is not installed.
+                    try {
+                        // Check to see if the Google Play flavor is installed.  This will throw an error and drop to the catch section if it isn't installed.
+                        packageManager.getPackageInfo("net.i2p.android", 0);
+                    } catch (PackageManager.NameNotFoundException googlePlayException) {  // The Google Play flavor is not installed.
+                        // Sow the I2P not installed dialog if it is not already displayed.
+                        if (getSupportFragmentManager().findFragmentByTag(getString(R.string.proxy_not_installed_dialog)) == null) {
+                            // Get a handle for the waiting for proxy alert dialog.
+                            DialogFragment i2pNotInstalledDialogFragment = ProxyNotInstalledDialog.displayDialog(proxyMode);
 
-                        // Try to show the dialog.  Sometimes the window is not yet active if returning from Settings.
-                        try {
-                            // Display the I2P not installed alert dialog.
-                            i2pNotInstalledDialogFragment.show(getSupportFragmentManager(), getString(R.string.proxy_not_installed_dialog));
-                        } catch (Exception i2pNotInstalledException) {
-                            // Add the dialog to the pending dialog array list.  It will be displayed in `onStart()`.
-                            pendingDialogsArrayList.add(new PendingDialog(i2pNotInstalledDialogFragment, getString(R.string.proxy_not_installed_dialog)));
+                            // Try to show the dialog.  Sometimes the window is not yet active if returning from Settings.
+                            try {
+                                // Display the I2P not installed alert dialog.
+                                i2pNotInstalledDialogFragment.show(getSupportFragmentManager(), getString(R.string.proxy_not_installed_dialog));
+                            } catch (Exception i2pNotInstalledException) {
+                                // Add the dialog to the pending dialog array list.  It will be displayed in `onStart()`.
+                                pendingDialogsArrayList.add(new PendingDialog(i2pNotInstalledDialogFragment, getString(R.string.proxy_not_installed_dialog)));
+                            }
                         }
                     }
                 }
@@ -4685,7 +4668,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 }
 
                 // Add a new tab if specified in the preferences.
-                if (sharedPreferences.getBoolean("open_intents_in_new_tab", true)) {  // Load the URL in a new tab.
+                if (sharedPreferences.getBoolean(getString(R.string.open_intents_in_new_tab_key), true)) {  // Load the URL in a new tab.
                     // Set the loading new intent flag.
                     loadingNewIntent = true;
 
@@ -4813,7 +4796,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         bookmarksDatabaseHelper.close();
 
         // Get the status of the clear everything preference.
-        boolean clearEverything = sharedPreferences.getBoolean("clear_everything", true);
+        boolean clearEverything = sharedPreferences.getBoolean(getString(R.string.clear_everything_key), true);
 
         // Get a handle for the runtime.
         Runtime runtime = Runtime.getRuntime();
@@ -4823,7 +4806,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         String privateDataDirectoryString = getApplicationInfo().dataDir;
 
         // Clear cookies.
-        if (clearEverything || sharedPreferences.getBoolean("clear_cookies", true)) {
+        if (clearEverything || sharedPreferences.getBoolean(getString(R.string.clear_cookies_key), true)) {
             // Request the cookies be deleted.
             CookieManager.getInstance().removeAllCookies(null);
 
@@ -4842,7 +4825,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         }
 
         // Clear DOM storage.
-        if (clearEverything || sharedPreferences.getBoolean("clear_dom_storage", true)) {
+        if (clearEverything || sharedPreferences.getBoolean(getString(R.string.clear_dom_storage_key), true)) {
             // Ask `WebStorage` to clear the DOM storage.
             WebStorage webStorage = WebStorage.getInstance();
             webStorage.deleteAllData();
@@ -4870,7 +4853,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         }
 
         // Clear form data if the API < 26.
-        if ((Build.VERSION.SDK_INT < 26) && (clearEverything || sharedPreferences.getBoolean("clear_form_data", true))) {
+        if ((Build.VERSION.SDK_INT < 26) && (clearEverything || sharedPreferences.getBoolean(getString(R.string.clear_form_data_key), true))) {
             WebViewDatabase webViewDatabase = WebViewDatabase.getInstance(this);
             webViewDatabase.clearFormData();
 
@@ -4902,7 +4885,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         }
 
         // Clear the cache.
-        if (clearEverything || sharedPreferences.getBoolean("clear_cache", true)) {
+        if (clearEverything || sharedPreferences.getBoolean(getString(R.string.clear_cache_key), true)) {
             // Clear the cache from each WebView.
             for (int i = 0; i < webViewPagerAdapter.getCount(); i++) {
                 // Get the WebView tab fragment.
@@ -5095,7 +5078,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
     @SuppressLint("ClickableViewAccessibility")
     @Override
-    public void initializeWebView(NestedScrollWebView nestedScrollWebView, int pageNumber, ProgressBar progressBar, String url, Boolean restoringState) {
+    public void initializeWebView(@NonNull NestedScrollWebView nestedScrollWebView, int pageNumber, @NonNull ProgressBar progressBar, @NonNull String url, boolean restoringState) {
         // Get a handle for the shared preferences.
         SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
 
@@ -6100,13 +6083,9 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                     // Set the title.
                     optionsRefreshMenuItem.setTitle(R.string.stop);
 
-                    // Get the app bar and theme preferences.
-                    boolean displayAdditionalAppBarIcons = sharedPreferences.getBoolean(getString(R.string.display_additional_app_bar_icons_key), false);
-
-                    // Set the icon if it is displayed in the AppBar.  Once the minimum API is >= 26, the blue and black icons can be combined with a tint list.
-                    if (displayAdditionalAppBarIcons) {
+                    // Set the icon if it is displayed in the AppBar.
+                    if (displayAdditionalAppBarIcons)
                         optionsRefreshMenuItem.setIcon(R.drawable.close_blue);
-                    }
                 }
             }
 
@@ -6122,14 +6101,9 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                     // Reset the Refresh title.
                     optionsRefreshMenuItem.setTitle(R.string.refresh);
 
-                    // Get the app bar and theme preferences.
-                    boolean displayAdditionalAppBarIcons = sharedPreferences.getBoolean(getString(R.string.display_additional_app_bar_icons_key), false);
-
-                    // If the icon is displayed in the app bar, reset it according to the theme.
-                    if (displayAdditionalAppBarIcons) {
-                        // Set the icon.
+                    // Reset the icon if it is displayed in the app bar.
+                    if (displayAdditionalAppBarIcons)
                         optionsRefreshMenuItem.setIcon(R.drawable.refresh_enabled);
-                    }
                 }
 
                  // Get the application's private data directory, which will be something like `/data/user/0/com.stoutner.privacybrowser.standard`,
@@ -6378,4 +6352,4 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
             }
         }
     }
-}
\ No newline at end of file
+}