]> gitweb.stoutner.com Git - PrivacyBrowserAndroid.git/blobdiff - app/src/main/java/com/stoutner/privacybrowser/activities/MainWebViewActivity.java
Hide the tabs in full screen mode.
[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / activities / MainWebViewActivity.java
index 4050a01faca5283b636b76d9be83c0137594b9bb..4193364de5c0041abc3b31948a7272f19b0ef80c 100644 (file)
@@ -71,7 +71,6 @@ import android.webkit.CookieManager;
 import android.webkit.HttpAuthHandler;
 import android.webkit.SslErrorHandler;
 import android.webkit.ValueCallback;
-import android.webkit.WebBackForwardList;
 import android.webkit.WebChromeClient;
 import android.webkit.WebResourceResponse;
 import android.webkit.WebSettings;
@@ -124,7 +123,6 @@ import com.stoutner.privacybrowser.dialogs.DownloadLocationPermissionDialog;
 import com.stoutner.privacybrowser.dialogs.EditBookmarkDialog;
 import com.stoutner.privacybrowser.dialogs.EditBookmarkFolderDialog;
 import com.stoutner.privacybrowser.dialogs.HttpAuthenticationDialog;
-import com.stoutner.privacybrowser.dialogs.PinnedMismatchDialog;
 import com.stoutner.privacybrowser.dialogs.SslCertificateErrorDialog;
 import com.stoutner.privacybrowser.dialogs.UrlHistoryDialog;
 import com.stoutner.privacybrowser.dialogs.ViewSslCertificateDialog;
@@ -154,17 +152,13 @@ import java.util.List;
 import java.util.Map;
 import java.util.Set;
 
-// TODO.  Store up reloads for tabs that are not visible.
 // TODO.  New tabs are white in dark mode.
-// TODO.  Hide the tabs in full screen mode.
 // TODO.  Find on page.
-// TODO.  Use TabLayout.setScrollPosition to scroll to new tabs.
 
 // AppCompatActivity from android.support.v7.app.AppCompatActivity must be used to have access to the SupportActionBar until the minimum API is >= 21.
 public class MainWebViewActivity extends AppCompatActivity implements CreateBookmarkDialog.CreateBookmarkListener, CreateBookmarkFolderDialog.CreateBookmarkFolderListener,
         DownloadFileDialog.DownloadFileListener, DownloadImageDialog.DownloadImageListener, DownloadLocationPermissionDialog.DownloadLocationPermissionDialogListener, EditBookmarkDialog.EditBookmarkListener,
-        EditBookmarkFolderDialog.EditBookmarkFolderListener, NavigationView.OnNavigationItemSelectedListener, WebViewTabFragment.NewTabListener, PinnedMismatchDialog.PinnedMismatchListener,
-        UrlHistoryDialog.UrlHistoryListener {
+        EditBookmarkFolderDialog.EditBookmarkFolderListener, NavigationView.OnNavigationItemSelectedListener, WebViewTabFragment.NewTabListener {
 
     // `orbotStatus` is public static so it can be accessed from `OrbotProxyHelper`.  It is also used in `onCreate()`, `onResume()`, and `applyProxyThroughOrbot()`.
     public static String orbotStatus;
@@ -172,9 +166,6 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
     // The WebView pager adapter is accessed from `HttpAuthenticationDialog`, `PinnedMismatchDialog`, and `SslCertificateErrorDialog`.  It is also used in `onCreate()`, `onResume()`, and `addTab()`.
     public static WebViewPagerAdapter webViewPagerAdapter;
 
-    // `reloadOnRestart` is public static so it can be accessed from `SettingsFragment`.  It is used in `onRestart()`
-    public static boolean reloadOnRestart;
-
     // The load URL on restart variables are public static so they can be accessed from `BookmarksActivity`.  They are used in `onRestart()`.
     public static boolean loadUrlOnRestart;
     public static String urlToLoadOnRestart;
@@ -231,7 +222,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
     // `inFullScreenBrowsingMode` is used in `onCreate()`, `onConfigurationChanged()`, and `applyAppSettings()`.
     private boolean inFullScreenBrowsingMode;
 
-    // Hide app bar is used in `applyAppSettings()` and `initializeWebView()`.
+    // The hide app bar tracker is used in `applyAppSettings()` and `initializeWebView()`.
     private boolean hideAppBar;
 
     // `reapplyDomainSettingsOnRestart` is used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onRestart()`, and `onAddDomain()`, .
@@ -491,16 +482,25 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 // Set the current WebView.
                 setCurrentWebView(position);
 
-                // Select the corresponding tab if it does not match the currently selected page.  This will happen if the page was scrolled via swiping in the view pager.
+                // Select the corresponding tab if it does not match the currently selected page.  This will happen if the page was scrolled via swiping in the view pager or by creating a new tab.
                 if (tabLayout.getSelectedTabPosition() != position) {
-                    // Get a handle for the corresponding tab.
-                    TabLayout.Tab correspondingTab = tabLayout.getTabAt(position);
+                    // Create a handler to select the tab.
+                    Handler selectTabHandler = new Handler();
+
+                    // Create a runnable select the new tab.
+                    Runnable selectTabRunnable = () -> {
+                        // Get a handle for the tab.
+                        TabLayout.Tab tab = tabLayout.getTabAt(position);
 
-                    // Assert that the corresponding tab is not null.
-                    assert correspondingTab != null;
+                        // Assert that the tab is not null.
+                        assert tab != null;
 
-                    // Select the corresponding tab.
-                    correspondingTab.select();
+                        // Select the tab.
+                        tab.select();
+                    };
+
+                    // Select the tab layout after 100 milliseconds, which leaves enough time for a new tab to be created.
+                    selectTabHandler.postDelayed(selectTabRunnable, 100);
                 }
             }
 
@@ -864,51 +864,41 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
         // Apply the app settings if returning from the Settings activity.
         if (reapplyAppSettingsOnRestart) {
+            // Reset the reapply app settings on restart tracker.
+            reapplyAppSettingsOnRestart = false;
+
             // Apply the app settings.
             applyAppSettings();
+        }
 
-            // Reload the webpage to handle changes to night mode and displaying of images.
-            if (reloadOnRestart) {
-                // Reload the WebViews.
-                for (int i = 0; i < webViewPagerAdapter.getCount(); i++) {
-                    // Get the WebView tab fragment.
-                    WebViewTabFragment webViewTabFragment = webViewPagerAdapter.getPageFragment(i);
-
-                    // Get the fragment view.
-                    View fragmentView = webViewTabFragment.getView();
-
-                    // Only reload the WebViews if they exist.
-                    if (fragmentView != null) {
-                        // Get the nested scroll WebView from the tab fragment.
-                        NestedScrollWebView nestedScrollWebView = fragmentView.findViewById(R.id.nestedscroll_webview);
-
-                        // Reload the WebView.  This doesn't seem to work if for WebViews that aren't visible.
-                        nestedScrollWebView.reload();
-                    }
-                }
+        // Apply the domain settings if returning from the settings or domains activity.
+        if (reapplyDomainSettingsOnRestart) {
+            // Reset the reapply domain settings on restart tracker.
+            reapplyDomainSettingsOnRestart = false;
 
-                // Reset `reloadOnRestartBoolean`.
-                reloadOnRestart = false;
-            }
+            // Reapply the domain settings for each tab.
+            for (int i = 0; i < webViewPagerAdapter.getCount(); i++) {
+                // Get the WebView tab fragment.
+                WebViewTabFragment webViewTabFragment = webViewPagerAdapter.getPageFragment(i);
 
-            // Reset the return from settings flag.
-            reapplyAppSettingsOnRestart = false;
-        }
+                // Get the fragment view.
+                View fragmentView = webViewTabFragment.getView();
 
-        // TODO apply to all the tabs.
-        // Apply the domain settings if returning from the Domains activity.
-        if (reapplyDomainSettingsOnRestart) {
-            // Reset the current domain name so the domain settings will be reapplied.
-            currentWebView.resetCurrentDomainName();
+                // Only reload the WebViews if they exist.
+                if (fragmentView != null) {
+                    // Get the nested scroll WebView from the tab fragment.
+                    NestedScrollWebView nestedScrollWebView = fragmentView.findViewById(R.id.nestedscroll_webview);
 
-            // Reapply the domain settings.
-            applyDomainSettings(currentWebView, currentWebView.getUrl(), false, true);  // TODO.
+                    // Reset the current domain name so the domain settings will be reapplied.
+                    nestedScrollWebView.resetCurrentDomainName();
 
-            // Reset the reapply domain settings on restart tracker.
-            reapplyDomainSettingsOnRestart = false;
+                    // Reapply the domain settings.
+                    applyDomainSettings(nestedScrollWebView, nestedScrollWebView.getUrl(), false, true);
+                }
+            }
         }
 
-        // Load the URL on restart (used when loading a bookmark.
+        // Load the URL on restart (used when loading a bookmark).
         if (loadUrlOnRestart) {
             // Load the specified URL.
             loadUrl(urlToLoadOnRestart);
@@ -1379,11 +1369,6 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                     // Reapply the domain settings on returning to `MainWebViewActivity`.
                     reapplyDomainSettingsOnRestart = true;
 
-                    // TODO.  Move these to `putExtra`.  The certificate can be stored as strings.
-                    // Store the current SSL certificate and IP addresses in the domains activity.
-                    DomainsActivity.currentSslCertificate = currentWebView.getCertificate();
-                    DomainsActivity.currentIpAddresses = currentWebView.getCurrentIpAddresses();
-
                     // Create an intent to launch the domains activity.
                     Intent domainsIntent = new Intent(this, DomainsActivity.class);
 
@@ -1392,6 +1377,38 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                     domainsIntent.putExtra("close_on_back", true);
                     domainsIntent.putExtra("current_url", currentWebView.getUrl());
 
+                    // Get the current certificate.
+                    SslCertificate sslCertificate = currentWebView.getCertificate();
+
+                    // Check to see if the SSL certificate is populated.
+                    if (sslCertificate != null) {
+                        // Extract the certificate to strings.
+                        String issuedToCName = sslCertificate.getIssuedTo().getCName();
+                        String issuedToOName = sslCertificate.getIssuedTo().getOName();
+                        String issuedToUName = sslCertificate.getIssuedTo().getUName();
+                        String issuedByCName = sslCertificate.getIssuedBy().getCName();
+                        String issuedByOName = sslCertificate.getIssuedBy().getOName();
+                        String issuedByUName = sslCertificate.getIssuedBy().getUName();
+                        long startDateLong = sslCertificate.getValidNotBeforeDate().getTime();
+                        long endDateLong = sslCertificate.getValidNotAfterDate().getTime();
+
+                        // Add the certificate to the intent.
+                        domainsIntent.putExtra("ssl_issued_to_cname", issuedToCName);
+                        domainsIntent.putExtra("ssl_issued_to_oname", issuedToOName);
+                        domainsIntent.putExtra("ssl_issued_to_uname", issuedToUName);
+                        domainsIntent.putExtra("ssl_issued_by_cname", issuedByCName);
+                        domainsIntent.putExtra("ssl_issued_by_oname", issuedByOName);
+                        domainsIntent.putExtra("ssl_issued_by_uname", issuedByUName);
+                        domainsIntent.putExtra("ssl_start_date", startDateLong);
+                        domainsIntent.putExtra("ssl_end_date", endDateLong);
+                    }
+
+                    // Check to see if the current IP addresses have been received.
+                    if (currentWebView.hasCurrentIpAddresses()) {
+                        // Add the current IP addresses to the intent.
+                        domainsIntent.putExtra("current_ip_addresses", currentWebView.getCurrentIpAddresses());
+                    }
+
                     // Make it so.
                     startActivity(domainsIntent);
                 } else {  // Add a new domain.
@@ -1408,11 +1425,6 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                     // Create the domain and store the database ID.
                     int newDomainDatabaseId = domainsDatabaseHelper.addDomain(currentDomain);
 
-                    // TODO.  Move these to `putExtra`.  The certificate can be stored as strings.
-                    // Store the current SSL certificate and IP addresses in the domains activity.
-                    DomainsActivity.currentSslCertificate = currentWebView.getCertificate();
-                    DomainsActivity.currentIpAddresses = currentWebView.getCurrentIpAddresses();
-
                     // Create an intent to launch the domains activity.
                     Intent domainsIntent = new Intent(this, DomainsActivity.class);
 
@@ -1421,6 +1433,38 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                     domainsIntent.putExtra("close_on_back", true);
                     domainsIntent.putExtra("current_url", currentWebView.getUrl());
 
+                    // Get the current certificate.
+                    SslCertificate sslCertificate = currentWebView.getCertificate();
+
+                    // Check to see if the SSL certificate is populated.
+                    if (sslCertificate != null) {
+                        // Extract the certificate to strings.
+                        String issuedToCName = sslCertificate.getIssuedTo().getCName();
+                        String issuedToOName = sslCertificate.getIssuedTo().getOName();
+                        String issuedToUName = sslCertificate.getIssuedTo().getUName();
+                        String issuedByCName = sslCertificate.getIssuedBy().getCName();
+                        String issuedByOName = sslCertificate.getIssuedBy().getOName();
+                        String issuedByUName = sslCertificate.getIssuedBy().getUName();
+                        long startDateLong = sslCertificate.getValidNotBeforeDate().getTime();
+                        long endDateLong = sslCertificate.getValidNotAfterDate().getTime();
+
+                        // Add the certificate to the intent.
+                        domainsIntent.putExtra("ssl_issued_to_cname", issuedToCName);
+                        domainsIntent.putExtra("ssl_issued_to_oname", issuedToOName);
+                        domainsIntent.putExtra("ssl_issued_to_uname", issuedToUName);
+                        domainsIntent.putExtra("ssl_issued_by_cname", issuedByCName);
+                        domainsIntent.putExtra("ssl_issued_by_oname", issuedByOName);
+                        domainsIntent.putExtra("ssl_issued_by_uname", issuedByUName);
+                        domainsIntent.putExtra("ssl_start_date", startDateLong);
+                        domainsIntent.putExtra("ssl_end_date", endDateLong);
+                    }
+
+                    // Check to see if the current IP addresses have been received.
+                    if (currentWebView.hasCurrentIpAddresses()) {
+                        // Add the current IP addresses to the intent.
+                        domainsIntent.putExtra("current_ip_addresses", currentWebView.getCurrentIpAddresses());
+                    }
+
                     // Make it so.
                     startActivity(domainsIntent);
                 }
@@ -2231,11 +2275,10 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 break;
 
             case R.id.history:
-                // Get the `WebBackForwardList`.
-                WebBackForwardList webBackForwardList = currentWebView.copyBackForwardList();
+                // Instantiate the URL history dialog.
+                DialogFragment urlHistoryDialogFragment = UrlHistoryDialog.loadBackForwardList(currentWebView.getWebViewFragmentId());
 
-                // Show the URL history dialog and name this instance `R.string.history`.
-                DialogFragment urlHistoryDialogFragment = UrlHistoryDialog.loadBackForwardList(this, webBackForwardList);
+                // Show the URL history dialog.
                 urlHistoryDialogFragment.show(getSupportFragmentManager(), getString(R.string.history));
                 break;
 
@@ -2267,17 +2310,44 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 // Set the flag to reapply the domain settings on restart when returning from Domain Settings.
                 reapplyDomainSettingsOnRestart = true;
 
-                // TODO.  Move these to `putExtra`.  The certificate can be stored as strings.
-                // Store the current SSL certificate and IP addresses in the domains activity.
-                DomainsActivity.currentSslCertificate = currentWebView.getCertificate();
-                DomainsActivity.currentIpAddresses = currentWebView.getCurrentIpAddresses();
-
                 // Launch the domains activity.
                 Intent domainsIntent = new Intent(this, DomainsActivity.class);
 
                 // Add the extra information to the intent.
                 domainsIntent.putExtra("current_url", currentWebView.getUrl());
 
+                // Get the current certificate.
+                SslCertificate sslCertificate = currentWebView.getCertificate();
+
+                // Check to see if the SSL certificate is populated.
+                if (sslCertificate != null) {
+                    // Extract the certificate to strings.
+                    String issuedToCName = sslCertificate.getIssuedTo().getCName();
+                    String issuedToOName = sslCertificate.getIssuedTo().getOName();
+                    String issuedToUName = sslCertificate.getIssuedTo().getUName();
+                    String issuedByCName = sslCertificate.getIssuedBy().getCName();
+                    String issuedByOName = sslCertificate.getIssuedBy().getOName();
+                    String issuedByUName = sslCertificate.getIssuedBy().getUName();
+                    long startDateLong = sslCertificate.getValidNotBeforeDate().getTime();
+                    long endDateLong = sslCertificate.getValidNotAfterDate().getTime();
+
+                    // Add the certificate to the intent.
+                    domainsIntent.putExtra("ssl_issued_to_cname", issuedToCName);
+                    domainsIntent.putExtra("ssl_issued_to_oname", issuedToOName);
+                    domainsIntent.putExtra("ssl_issued_to_uname", issuedToUName);
+                    domainsIntent.putExtra("ssl_issued_by_cname", issuedByCName);
+                    domainsIntent.putExtra("ssl_issued_by_oname", issuedByOName);
+                    domainsIntent.putExtra("ssl_issued_by_uname", issuedByUName);
+                    domainsIntent.putExtra("ssl_start_date", startDateLong);
+                    domainsIntent.putExtra("ssl_end_date", endDateLong);
+                }
+
+                // Check to see if the current IP addresses have been received.
+                if (currentWebView.hasCurrentIpAddresses()) {
+                    // Add the current IP addresses to the intent.
+                    domainsIntent.putExtra("current_ip_addresses", currentWebView.getCurrentIpAddresses());
+                }
+
                 // Make it so.
                 startActivity(domainsIntent);
                 break;
@@ -3036,47 +3106,6 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         }
     }
 
-    @Override
-    public void onPinnedMismatchBack() {  // TODO.  Move this logic to the dialog.
-        if (currentWebView.canGoBack()) {  // There is a back page in the history.
-            // Reset the current domain name so that navigation works if third-party requests are blocked.
-            currentWebView.resetCurrentDomainName();
-
-            // Set navigating history so that the domain settings are applied when the new URL is loaded.
-            currentWebView.setNavigatingHistory(true);
-
-            // Go back.
-            currentWebView.goBack();
-        } else {  // There are no pages to go back to.
-            // Load a blank page
-            loadUrl("");
-        }
-    }
-
-    @Override
-    public void onPinnedMismatchProceed() {  // TODO.  Move this logic to the dialog.
-        // Do not check the pinned information for this domain again until the domain changes.
-        currentWebView.setIgnorePinnedDomainInformation(true);
-    }
-
-    @Override
-    public void onUrlHistoryEntrySelected(int moveBackOrForwardSteps) {  // TODO.  Move this logic to the dialog.
-        // Reset the current domain name so that navigation works if third-party requests are blocked.
-        currentWebView.resetCurrentDomainName();
-
-        // Set navigating history so that the domain settings are applied when the new URL is loaded.
-        currentWebView.setNavigatingHistory(true);
-
-        // Load the history entry.
-        currentWebView.goBackOrForward(moveBackOrForwardSteps);
-    }
-
-    @Override
-    public void onClearHistory() {  // TODO.  Move this logic to the dialog.
-        // Clear the history.
-        currentWebView.clearHistory();
-    }
-
     // Override `onBackPressed` to handle the navigation drawer and and the WebView.
     @Override
     public void onBackPressed() {
@@ -3106,9 +3135,9 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
             // Go back.
             currentWebView.goBack();
-        } else {  // There isn't anything to do in Privacy Browser.
-            // Pass `onBackPressed()` to the system.
-            super.onBackPressed();
+        } else {  // There is nothing else to do.
+            // Load a blank website.
+            loadUrl("");
         }
     }
 
@@ -3249,11 +3278,12 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         fullScreenBrowsingModeEnabled = sharedPreferences.getBoolean("full_screen_browsing_mode", false);
         hideAppBar = sharedPreferences.getBoolean("hide_app_bar", true);
 
-        // Get handles for the views that need to be modified.  `getSupportActionBar()` must be used until the minimum API >= 21.
+        // Get handles for the views that need to be modified.
         FrameLayout rootFrameLayout = findViewById(R.id.root_framelayout);
         ActionBar actionBar = getSupportActionBar();
+        LinearLayout tabsLinearLayout = findViewById(R.id.tabs_linearlayout);
 
-        // Remove the incorrect lint warnings below that the action bar might be null.
+        // Remove the incorrect lint warning below that the action bar might be null.
         assert actionBar != null;
 
         // Apply the proxy through Orbot settings.
@@ -3288,8 +3318,16 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         if (fullScreenBrowsingModeEnabled && inFullScreenBrowsingMode) {  // Privacy Browser is currently in full screen browsing mode.
             // Update the visibility of the app bar, which might have changed in the settings.
             if (hideAppBar) {
+                // Hide the tab linear layout.
+                tabsLinearLayout.setVisibility(View.GONE);
+
+                // Hide the action bar.
                 actionBar.hide();
             } else {
+                // Show the tab linear layout.
+                tabsLinearLayout.setVisibility(View.VISIBLE);
+
+                // Show the action bar.
                 actionBar.show();
             }
 
@@ -3313,7 +3351,10 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
             // Reset the full screen tracker, which could be true if Privacy Browser was in full screen mode before entering settings and full screen browsing was disabled.
             inFullScreenBrowsingMode = false;
 
-            // Show the app bar.
+            // Show the tab linear layout.
+            tabsLinearLayout.setVisibility(View.VISIBLE);
+
+            // Show the action bar.
             actionBar.show();
 
             // Show the banner ad in the free flavor.
@@ -3333,7 +3374,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
     // `reloadWebsite` is used if returning from the Domains activity.  Otherwise JavaScript might not function correctly if it is newly enabled.
     @SuppressLint("SetJavaScriptEnabled")
-    private boolean applyDomainSettings(NestedScrollWebView nestedScrollWebView, String url, boolean resetFavoriteIcon, boolean reloadWebsite) {
+    private boolean applyDomainSettings(NestedScrollWebView nestedScrollWebView, String url, boolean resetTab, boolean reloadWebsite) {
         // Store a copy of the current user agent to track changes for the return boolean.
         String initialUserAgent = nestedScrollWebView.getSettings().getUserAgentString();
 
@@ -3361,30 +3402,37 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
             nestedScrollWebView.clearPinnedIpAddresses();
 
             // Reset the favorite icon if specified.
-            if (resetFavoriteIcon) {
+            if (resetTab) {
                 // Initialize the favorite icon.
                 nestedScrollWebView.initializeFavoriteIcon();
 
+                // Get the current page position.
+                int currentPagePosition = webViewPagerAdapter.getPositionForId(nestedScrollWebView.getWebViewFragmentId());
+
                 // Get a handle for the tab layout.
                 TabLayout tabLayout = findViewById(R.id.tablayout);
 
-                // Get the current tab.
-                TabLayout.Tab currentTab = tabLayout.getTabAt(tabLayout.getSelectedTabPosition());  // TODO.  We need to get the tab for this WebView, which might not be the current tab.
+                // Get the corresponding tab.
+                TabLayout.Tab tab = tabLayout.getTabAt(currentPagePosition);
 
-                // Remove the warning below that the current tab might be null.
-                assert currentTab != null;
+                // Remove the warning below that the tab might be null.
+                assert tab != null;
 
-                // Get the current tab custom view.
-                View currentTabCustomView = currentTab.getCustomView();
+                // Get the tab custom view.
+                View tabCustomView = tab.getCustomView();
 
-                // Remove the warning below that the current tab custom view might be null.
-                assert currentTabCustomView != null;
+                // Remove the warning below that the tab custom view might be null.
+                assert tabCustomView != null;
 
-                // Get the current tab favorite icon image view.
-                ImageView currentTabFavoriteIconImageView = currentTabCustomView.findViewById(R.id.favorite_icon_imageview);
+                // Get the tab views.
+                ImageView tabFavoriteIconImageView = tabCustomView.findViewById(R.id.favorite_icon_imageview);
+                TextView tabTitleTextView = tabCustomView.findViewById(R.id.title_textview);
 
                 // Set the default favorite icon as the favorite icon for this tab.
-                currentTabFavoriteIconImageView.setImageBitmap(Bitmap.createScaledBitmap(nestedScrollWebView.getFavoriteOrDefaultIcon(), 64, 64, true));
+                tabFavoriteIconImageView.setImageBitmap(Bitmap.createScaledBitmap(nestedScrollWebView.getFavoriteOrDefaultIcon(), 64, 64, true));
+
+                // Set the loading title text.
+                tabTitleTextView.setText(R.string.loading);
             }
 
             // Initialize the database handler.  The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
@@ -4118,7 +4166,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         assert newTab != null;
 
         // Set a custom view on the new tab.
-        newTab.setCustomView(R.layout.custom_tab_view);
+        newTab.setCustomView(R.layout.tab_custom_view);
 
         // Add the new WebView page.
         webViewPagerAdapter.addPage(newTabNumber, webViewPager);
@@ -4212,11 +4260,12 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         DrawerLayout drawerLayout = findViewById(R.id.drawerlayout);
         RelativeLayout mainContentRelativeLayout = findViewById(R.id.main_content_relativelayout);
         ActionBar actionBar = getSupportActionBar();
+        LinearLayout tabsLinearLayout = findViewById(R.id.tabs_linearlayout);
         EditText urlEditText = findViewById(R.id.url_edittext);
         TabLayout tabLayout = findViewById(R.id.tablayout);
         SwipeRefreshLayout swipeRefreshLayout = findViewById(R.id.swiperefreshlayout);
 
-        // Remove the incorrect lint warnings below that the some of the views might be null.
+        // Remove the incorrect lint warning below that the action bar might be null.
         assert actionBar != null;
 
         // Get a handle for the activity
@@ -4276,6 +4325,10 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                     if (inFullScreenBrowsingMode) {  // Switch to full screen mode.
                         // Hide the app bar if specified.
                         if (hideAppBar) {
+                            // Hide the tab linear layout.
+                            tabsLinearLayout.setVisibility(View.GONE);
+
+                            // Hide the action bar.
                             actionBar.hide();
                         }
 
@@ -4296,7 +4349,10 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                         rootFrameLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION |
                                 View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
                     } else {  // Switch to normal viewing mode.
-                        // Show the app bar.
+                        // Show the tab linear layout.
+                        tabsLinearLayout.setVisibility(View.VISIBLE);
+
+                        // Show the action bar.
                         actionBar.show();
 
                         // Show the banner ad in the free flavor.
@@ -4436,7 +4492,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                             }
                         };
 
-                        // Displaying of `mainWebView` after 500 milliseconds.
+                        // Display the WebView after 500 milliseconds.
                         displayWebViewHandler.postDelayed(displayWebViewRunnable, 500);
                     });
                 }
@@ -4591,6 +4647,10 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 if (fullScreenBrowsingModeEnabled && inFullScreenBrowsingMode) {  // Privacy Browser is currently in full screen browsing mode.
                     // Hide the app bar if specified.
                     if (hideAppBar) {
+                        // Hide the tab linear layout.
+                        tabsLinearLayout.setVisibility(View.GONE);
+
+                        // Hide the action bar.
                         actionBar.hide();
                     }
 
@@ -4730,15 +4790,6 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 // Get a handle for the navigation requests menu item.  The menu is 0 based.
                 MenuItem navigationRequestsMenuItem = navigationMenu.getItem(6);
 
-                // Get handles for the options menu items.
-                MenuItem blocklistsMenuItem = optionsMenu.findItem(R.id.blocklists);
-                MenuItem easyListMenuItem = optionsMenu.findItem(R.id.easylist);
-                MenuItem easyPrivacyMenuItem = optionsMenu.findItem(R.id.easyprivacy);
-                MenuItem fanboysAnnoyanceListMenuItem = optionsMenu.findItem(R.id.fanboys_annoyance_list);
-                MenuItem fanboysSocialBlockingListMenuItem = optionsMenu.findItem(R.id.fanboys_social_blocking_list);
-                MenuItem ultraPrivacyMenuItem = optionsMenu.findItem(R.id.ultraprivacy);
-                MenuItem blockAllThirdPartyRequestsMenuItem = optionsMenu.findItem(R.id.block_all_third_party_requests);
-
                 // Create an empty web resource response to be used if the resource request is blocked.
                 WebResourceResponse emptyWebResourceResponse = new WebResourceResponse("text/plain", "utf8", new ByteArrayInputStream("".getBytes()));
 
@@ -4802,9 +4853,13 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                         activity.runOnUiThread(() -> {
                             // Update the menu item titles.
                             navigationRequestsMenuItem.setTitle(getString(R.string.requests) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
-                            blocklistsMenuItem.setTitle(getString(R.string.blocklists) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
-                            blockAllThirdPartyRequestsMenuItem.setTitle(nestedScrollWebView.getRequestsCount(NestedScrollWebView.THIRD_PARTY_REQUESTS) + " - " +
-                                    getString(R.string.block_all_third_party_requests));
+
+                            // Update the options menu if it has been populated.
+                            if (optionsMenu != null) {
+                                optionsMenu.findItem(R.id.blocklists).setTitle(getString(R.string.blocklists) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
+                                optionsMenu.findItem(R.id.block_all_third_party_requests).setTitle(nestedScrollWebView.getRequestsCount(NestedScrollWebView.THIRD_PARTY_REQUESTS) + " - " +
+                                        getString(R.string.block_all_third_party_requests));
+                            }
                         });
                     }
 
@@ -4833,8 +4888,12 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                             activity.runOnUiThread(() -> {
                                 // Update the menu item titles.
                                 navigationRequestsMenuItem.setTitle(getString(R.string.requests) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
-                                blocklistsMenuItem.setTitle(getString(R.string.blocklists) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
-                                ultraPrivacyMenuItem.setTitle(nestedScrollWebView.getRequestsCount(NestedScrollWebView.ULTRA_PRIVACY) + " - " + getString(R.string.ultraprivacy));
+
+                                // Update the options menu if it has been populated.
+                                if (optionsMenu != null) {
+                                    optionsMenu.findItem(R.id.blocklists).setTitle(getString(R.string.blocklists) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
+                                    optionsMenu.findItem(R.id.ultraprivacy).setTitle(nestedScrollWebView.getRequestsCount(NestedScrollWebView.ULTRA_PRIVACY) + " - " + getString(R.string.ultraprivacy));
+                                }
                             });
                         }
 
@@ -4870,8 +4929,12 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                             activity.runOnUiThread(() -> {
                                 // Update the menu item titles.
                                 navigationRequestsMenuItem.setTitle(getString(R.string.requests) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
-                                blocklistsMenuItem.setTitle(getString(R.string.blocklists) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
-                                easyListMenuItem.setTitle(nestedScrollWebView.getRequestsCount(NestedScrollWebView.EASY_LIST) + " - " + getString(R.string.easylist));
+
+                                // Update the options menu if it has been populated.
+                                if (optionsMenu != null) {
+                                    optionsMenu.findItem(R.id.blocklists).setTitle(getString(R.string.blocklists) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
+                                    optionsMenu.findItem(R.id.easylist).setTitle(nestedScrollWebView.getRequestsCount(NestedScrollWebView.EASY_LIST) + " - " + getString(R.string.easylist));
+                                }
                             });
                         }
 
@@ -4904,8 +4967,12 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                             activity.runOnUiThread(() -> {
                                 // Update the menu item titles.
                                 navigationRequestsMenuItem.setTitle(getString(R.string.requests) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
-                                blocklistsMenuItem.setTitle(getString(R.string.blocklists) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
-                                easyPrivacyMenuItem.setTitle(nestedScrollWebView.getRequestsCount(NestedScrollWebView.EASY_PRIVACY) + " - " + getString(R.string.easyprivacy));
+
+                                // Update the options menu if it has been populated.
+                                if (optionsMenu != null) {
+                                    optionsMenu.findItem(R.id.blocklists).setTitle(getString(R.string.blocklists) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
+                                    optionsMenu.findItem(R.id.easyprivacy).setTitle(nestedScrollWebView.getRequestsCount(NestedScrollWebView.EASY_PRIVACY) + " - " + getString(R.string.easyprivacy));
+                                }
                             });
                         }
 
@@ -4938,9 +5005,13 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                             activity.runOnUiThread(() -> {
                                 // Update the menu item titles.
                                 navigationRequestsMenuItem.setTitle(getString(R.string.requests) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
-                                blocklistsMenuItem.setTitle(getString(R.string.blocklists) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
-                                fanboysAnnoyanceListMenuItem.setTitle(nestedScrollWebView.getRequestsCount(NestedScrollWebView.FANBOYS_ANNOYANCE_LIST) + " - " +
-                                        getString(R.string.fanboys_annoyance_list));
+
+                                // Update the options menu if it has been populated.
+                                if (optionsMenu != null) {
+                                    optionsMenu.findItem(R.id.blocklists).setTitle(getString(R.string.blocklists) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
+                                    optionsMenu.findItem(R.id.fanboys_annoyance_list).setTitle(nestedScrollWebView.getRequestsCount(NestedScrollWebView.FANBOYS_ANNOYANCE_LIST) + " - " +
+                                            getString(R.string.fanboys_annoyance_list));
+                                }
                             });
                         }
 
@@ -4971,9 +5042,13 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                             activity.runOnUiThread(() -> {
                                 // Update the menu item titles.
                                 navigationRequestsMenuItem.setTitle(getString(R.string.requests) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
-                                blocklistsMenuItem.setTitle(getString(R.string.blocklists) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
-                                fanboysSocialBlockingListMenuItem.setTitle(nestedScrollWebView.getRequestsCount(NestedScrollWebView.FANBOYS_SOCIAL_BLOCKING_LIST) + " - " +
-                                        getString(R.string.fanboys_social_blocking_list));
+
+                                // Update the options menu if it has been populated.
+                                if (optionsMenu != null) {
+                                    optionsMenu.findItem(R.id.blocklists).setTitle(getString(R.string.blocklists) + " - " + nestedScrollWebView.getRequestsCount(NestedScrollWebView.BLOCKED_REQUESTS));
+                                    optionsMenu.findItem(R.id.fanboys_social_blocking_list).setTitle(nestedScrollWebView.getRequestsCount(NestedScrollWebView.FANBOYS_SOCIAL_BLOCKING_LIST) + " - " +
+                                            getString(R.string.fanboys_social_blocking_list));
+                                }
                             });
                         }
 
@@ -5031,11 +5106,17 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
                 // Check to see if Privacy Browser is waiting on Orbot.
                 if (!waitingForOrbot) {  // Process the URL.
-                    // Display the formatted URL text.
-                    urlEditText.setText(url);
+                    // Get the current page position.
+                    int currentPagePosition = webViewPagerAdapter.getPositionForId(nestedScrollWebView.getWebViewFragmentId());
+
+                    // Update the URL text bar if the page is currently selected.
+                    if (tabLayout.getSelectedTabPosition() == currentPagePosition) {
+                        // Display the formatted URL text.
+                        urlEditText.setText(url);
 
-                    // Apply text highlighting to `urlTextBox`.
-                    highlightUrlText();
+                        // Apply text highlighting to `urlTextBox`.
+                        highlightUrlText();
+                    }
 
                     // Reset the list of host IP addresses.
                     nestedScrollWebView.clearCurrentIpAddresses();
@@ -5145,30 +5226,36 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
                 // Update the URL text box and apply domain settings if not waiting on Orbot.
                 if (!waitingForOrbot) {
-                    // Check to see if `WebView` has set `url` to be `about:blank`.
-                    if (url.equals("about:blank")) {  // The WebView is blank.
-                        // Display the hint in the URL edit text.
-                        urlEditText.setText("");
-
-                        // Request focus for `urlTextBox`.
-                        urlEditText.requestFocus();
-
-                        // Display the keyboard.
-                        inputMethodManager.showSoftInput(urlEditText, 0);
-
-                        // Hide the WebView, which causes the default background color to be displayed according to the theme.
-                        nestedScrollWebView.setVisibility(View.GONE);
-
-                        // Apply the domain settings.  This clears any settings from the previous domain.
-                        applyDomainSettings(nestedScrollWebView, "", true, false);
-                    } else {  // The WebView has loaded a webpage.
-                        // Only update the URL text box if the user is not typing in it.
-                        if (!urlEditText.hasFocus()) {
-                            // Display the final URL.  Getting the URL from the WebView instead of using the one provided by `onPageFinished` makes websites like YouTube function correctly.
-                            urlEditText.setText(nestedScrollWebView.getUrl());
-
-                            // Apply text highlighting to `urlTextBox`.
-                            highlightUrlText();
+                    // Get the current page position.
+                    int currentPagePosition = webViewPagerAdapter.getPositionForId(nestedScrollWebView.getWebViewFragmentId());
+
+                    // Update the URL text bar if the page is currently selected.
+                    if (tabLayout.getSelectedTabPosition() == currentPagePosition) {
+                        // Check to see if the URL is `about:blank`.
+                        if (url.equals("about:blank")) {  // The WebView is blank.
+                            // Display the hint in the URL edit text.
+                            urlEditText.setText("");
+
+                            // Request focus for the URL text box.
+                            urlEditText.requestFocus();
+
+                            // Display the keyboard.
+                            inputMethodManager.showSoftInput(urlEditText, 0);
+
+                            // Hide the WebView, which causes the default background color to be displayed according to the theme.  // TODO
+                            nestedScrollWebView.setVisibility(View.GONE);
+
+                            // Apply the domain settings.  This clears any settings from the previous domain.
+                            applyDomainSettings(nestedScrollWebView, "", true, false);
+                        } else {  // The WebView has loaded a webpage.
+                            // Only update the URL text box if the user is not typing in it.
+                            if (!urlEditText.hasFocus()) {
+                                // Display the final URL.  Getting the URL from the WebView instead of using the one provided by `onPageFinished()` makes websites like YouTube function correctly.
+                                urlEditText.setText(nestedScrollWebView.getUrl());
+
+                                // Apply text highlighting to the URL.
+                                highlightUrlText();
+                            }
                         }
                     }