]> gitweb.stoutner.com Git - PrivacyBrowserAndroid.git/blobdiff - app/src/main/java/com/stoutner/privacybrowser/activities/MainWebViewActivity.java
Scale bookmark favorite icons larger than 256 x 256 to fix a crash. https://redmine...
[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / activities / MainWebViewActivity.java
index bbdf85308e4233836b2347e52608dace7a0d2c92..c6e065b18391a39bbd92e453f30640a9f3d4f405 100644 (file)
@@ -98,13 +98,8 @@ import androidx.appcompat.app.ActionBar;
 import androidx.appcompat.app.ActionBarDrawerToggle;
 import androidx.appcompat.app.AppCompatActivity;
 import androidx.appcompat.widget.Toolbar;
-import androidx.coordinatorlayout.widget.CoordinatorLayout;
 import androidx.core.app.ActivityCompat;
 import androidx.core.content.ContextCompat;
-// `ShortcutInfoCompat`, `ShortcutManagerCompat`, and `IconCompat` can be switched to the non-compat versions once API >= 26.
-import androidx.core.content.pm.ShortcutInfoCompat;
-import androidx.core.content.pm.ShortcutManagerCompat;
-import androidx.core.graphics.drawable.IconCompat;
 import androidx.core.view.GravityCompat;
 import androidx.drawerlayout.widget.DrawerLayout;
 import androidx.fragment.app.DialogFragment;
@@ -136,6 +131,7 @@ import com.stoutner.privacybrowser.helpers.DomainsDatabaseHelper;
 import com.stoutner.privacybrowser.helpers.OrbotProxyHelper;
 import com.stoutner.privacybrowser.dialogs.DownloadFileDialog;
 import com.stoutner.privacybrowser.dialogs.SslCertificateErrorDialog;
+import com.stoutner.privacybrowser.views.NestedScrollWebView;
 
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
@@ -159,9 +155,8 @@ import java.util.Set;
 
 // 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,
-        CreateHomeScreenShortcutDialog.CreateHomeScreenShortcutListener, DownloadFileDialog.DownloadFileListener, DownloadImageDialog.DownloadImageListener,
-        DownloadLocationPermissionDialog.DownloadLocationPermissionDialogListener, EditBookmarkDialog.EditBookmarkListener, EditBookmarkFolderDialog.EditBookmarkFolderListener,
-        HttpAuthenticationDialog.HttpAuthenticationListener, NavigationView.OnNavigationItemSelectedListener, PinnedMismatchDialog.PinnedMismatchListener,
+        DownloadFileDialog.DownloadFileListener, DownloadImageDialog.DownloadImageListener, DownloadLocationPermissionDialog.DownloadLocationPermissionDialogListener, EditBookmarkDialog.EditBookmarkListener,
+        EditBookmarkFolderDialog.EditBookmarkFolderListener, HttpAuthenticationDialog.HttpAuthenticationListener, NavigationView.OnNavigationItemSelectedListener, PinnedMismatchDialog.PinnedMismatchListener,
         SslCertificateErrorDialog.SslCertificateErrorListener, UrlHistoryDialog.UrlHistoryListener {
 
     // `darkTheme` is public static so it can be accessed from everywhere.
@@ -172,13 +167,14 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
     // `favoriteIconBitmap` is public static so it can be accessed from `CreateHomeScreenShortcutDialog`, `BookmarksActivity`, `BookmarksDatabaseViewActivity`, `CreateBookmarkDialog`,
     // `CreateBookmarkFolderDialog`, `EditBookmarkDialog`, `EditBookmarkFolderDialog`, `EditBookmarkDatabaseViewDialog`, and `ViewSslCertificateDialog`.  It is also used in `onCreate()`,
-    // `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onCreateHomeScreenShortcutCreate()`, `onSaveEditBookmark()`, `onSaveEditBookmarkFolder()`, and `applyDomainSettings()`.
+    // `onCreateBookmark()`, `onCreateBookmarkFolder()`, `onCreateHomeScreenShortcut()`, `onSaveEditBookmark()`, `onSaveEditBookmarkFolder()`, and `applyDomainSettings()`.
     public static Bitmap favoriteIconBitmap;
 
     // `favoriteIconDefaultBitmap` public static so it can be accessed from `PinnedMismatchDialog`.  It is also used in `onCreate()` and `applyDomainSettings`.
     public static Bitmap favoriteIconDefaultBitmap;
 
-    // `formattedUrlString` is public static so it can be accessed from `AddDomainDialog`, `BookmarksActivity`, `DomainSettingsFragment`, `CreateBookmarkDialog`, and `PinnedMismatchDialog`.
+    // `formattedUrlString` is public static so it can be accessed from `AddDomainDialog`, `BookmarksActivity`, `DomainSettingsFragment`, `CreateBookmarkDialog`,
+    // and `PinnedMismatchDialog`.
     // It is also used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onCreateHomeScreenShortcutCreate()`, `loadUrlFromTextBox()`, and `applyProxyThroughOrbot()`.
     public static String formattedUrlString;
 
@@ -193,7 +189,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
     // `orbotStatus` is public static so it can be accessed from `OrbotProxyHelper`.  It is also used in `onCreate()`, `onResume()`, and `applyProxyThroughOrbot()`.
     public static String orbotStatus;
 
-    // `webViewTitle` is public static so it can be accessed from `CreateBookmarkDialog` and `CreateHomeScreenShortcutDialog`.  It is also used in `onCreate()`.
+    // `webViewTitle` is public static so it can be accessed from `CreateBookmarkDialog`.  It is also used in `onCreate()`.
     public static String webViewTitle;
 
     // `appliedUserAgentString` is public static so it can be accessed from `ViewSourceActivity`.  It is also used in `applyDomainSettings()`.
@@ -318,7 +314,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
     // `mainWebView` is used in `onCreate()`, `onPrepareOptionsMenu()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onRestart()`, `onCreateContextMenu()`, `findPreviousOnPage()`,
     // `findNextOnPage()`, `closeFindOnPage()`, `loadUrlFromTextBox()`, `onSslMismatchBack()`, and `applyProxyThroughOrbot()`.
-    private WebView mainWebView;
+    private NestedScrollWebView mainWebView;
 
     // `fullScreenVideoFrameLayout` is used in `onCreate()` and `onConfigurationChanged()`.
     private FrameLayout fullScreenVideoFrameLayout;
@@ -402,11 +398,8 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
     // `inFullScreenBrowsingMode` is used in `onCreate()`, `onConfigurationChanged()`, and `applyAppSettings()`.
     private boolean inFullScreenBrowsingMode;
 
-    // `hideSystemBarsOnFullscreen` is used in `onCreate()` and `applyAppSettings()`.
-    private boolean hideSystemBarsOnFullscreen;
-
-    // `translucentNavigationBarOnFullscreen` is used in `onCreate()` and `applyAppSettings()`.
-    private boolean translucentNavigationBarOnFullscreen;
+    // Hide app bar is used in `onCreate()` and `applyAppSettings()`.
+    private boolean hideAppBar;
 
     // `reapplyDomainSettingsOnRestart` is used in `onCreate()`, `onOptionsItemSelected()`, `onNavigationItemSelected()`, `onRestart()`, and `onAddDomain()`, .
     private boolean reapplyDomainSettingsOnRestart;
@@ -441,16 +434,13 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
     // `privateDataDirectoryString` is used in `onCreate()`, `onOptionsItemSelected()`, and `onNavigationItemSelected()`.
     private String privateDataDirectoryString;
 
-    // `findOnPageLinearLayout` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
-    private LinearLayout findOnPageLinearLayout;
-
     // `findOnPageEditText` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
     private EditText findOnPageEditText;
 
     // `displayAdditionalAppBarIcons` is used in `onCreate()` and `onCreateOptionsMenu()`.
     private boolean displayAdditionalAppBarIcons;
 
-    // The action bar drawer toggle is initialized in `onCreate()` and used in `onPostCreate()`.
+    // The action bar drawer toggle is initialized in `onCreate()` and used in `onResume()`.
     private ActionBarDrawerToggle actionBarDrawerToggle;
 
     // `urlTextBox` is used in `onCreate()`, `onOptionsItemSelected()`, `loadUrlFromTextBox()`, `loadUrl()`, and `highlightUrlText()`.
@@ -543,7 +533,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         super.onCreate(savedInstanceState);
 
         // Set the content view.
-        setContentView(R.layout.main_drawerlayout);
+        setContentView(R.layout.main_framelayout);
 
         // Get handles for views, resources, and managers.
         Resources resources = getResources();
@@ -631,16 +621,16 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         this.registerReceiver(orbotStatusBroadcastReceiver, new IntentFilter("org.torproject.android.intent.action.STATUS"));
 
         // Get handles for views that need to be modified.
+        FrameLayout rootFrameLayout = findViewById(R.id.root_framelayout);
         DrawerLayout drawerLayout = findViewById(R.id.drawerlayout);
-        CoordinatorLayout coordinatorLayout = findViewById(R.id.coordinatorlayout);
+        RelativeLayout mainContentRelativeLayout = findViewById(R.id.main_content_relativelayout);
+        SwipeRefreshLayout swipeRefreshLayout = findViewById(R.id.swiperefreshlayout);
+        mainWebView = findViewById(R.id.main_webview);
         bookmarksListView = findViewById(R.id.bookmarks_drawer_listview);
         bookmarksTitleTextView = findViewById(R.id.bookmarks_title_textview);
         FloatingActionButton launchBookmarksActivityFab = findViewById(R.id.launch_bookmarks_activity_fab);
         FloatingActionButton createBookmarkFolderFab = findViewById(R.id.create_bookmark_folder_fab);
         FloatingActionButton createBookmarkFab = findViewById(R.id.create_bookmark_fab);
-        SwipeRefreshLayout swipeRefreshLayout = findViewById(R.id.swiperefreshlayout);
-        mainWebView = findViewById(R.id.main_webview);
-        findOnPageLinearLayout = findViewById(R.id.find_on_page_linearlayout);
         findOnPageEditText = findViewById(R.id.find_on_page_edittext);
         fullScreenVideoFrameLayout = findViewById(R.id.full_screen_video_framelayout);
         urlAppBarRelativeLayout = findViewById(R.id.url_app_bar_relativelayout);
@@ -691,66 +681,47 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
             @Override
             public boolean onDoubleTap(MotionEvent event) {
                 if (fullScreenBrowsingModeEnabled) {  // Only process the double-tap if full screen browsing mode is enabled.
-                    // Toggle `inFullScreenBrowsingMode`.
+                    // Toggle the full screen browsing mode tracker.
                     inFullScreenBrowsingMode = !inFullScreenBrowsingMode;
 
+                    // Toggle the full screen browsing mode.
                     if (inFullScreenBrowsingMode) {  // Switch to full screen mode.
-                        // Hide the action bar.
-                        actionBar.hide();
+                        // Hide the app bar if specified.
+                        if (hideAppBar) {
+                            actionBar.hide();
+                        }
 
                         // Hide the banner ad in the free flavor.
                         if (BuildConfig.FLAVOR.contentEquals("free")) {
-                            // The AdView is destroyed and recreated, which changes the ID, every time it is reloaded to handle possible rotations.
                             AdHelper.hideAd(findViewById(R.id.adview));
                         }
 
-                        // Modify the system bars.
-                        if (hideSystemBarsOnFullscreen) {  // Hide everything.
-                            // 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.
-                             */
-                            coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
-
-                            // Set the coordinator layout to fill the entire screen.
-                            coordinatorLayout.setFitsSystemWindows(false);
-                        } else {  // Hide everything except the status and navigation bars.
-                            // Set the coordinator layout to fill the entire screen.
-                            coordinatorLayout.setFitsSystemWindows(false);
-
-                            // There is an Android Support Library bug that causes a scrim to print on the right side of the `Drawer Layout` when the navigation bar is displayed on the right of the screen.
-                            if (translucentNavigationBarOnFullscreen) {
-                                // Set the navigation bar to be translucent.
-                                getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
-                            }
-                        }
+                        // Remove the translucent status flag.  This is necessary so the root frame layout can fill the entire screen.
+                        getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+
+                        /* Hide the system bars.
+                         * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
+                         * SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN makes the root frame layout fill the area that is normally reserved for the status bar.
+                         * 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.
+                         */
+                        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 action bar.
+                        // Show the app bar.
                         actionBar.show();
 
-                        // Show the `BannerAd` in the free flavor.
+                        // Show the banner ad in the free flavor.
                         if (BuildConfig.FLAVOR.contentEquals("free")) {
-                            // Reload the ad.  The AdView is destroyed and recreated, which changes the ID, every time it is reloaded to handle possible rotations.
+                            // Reload the ad.
                             AdHelper.loadAd(findViewById(R.id.adview), getApplicationContext(), getString(R.string.ad_unit_id));
                         }
 
-                        // Remove the translucent navigation bar flag if it is set.
-                        getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
+                        // Remove the `SYSTEM_UI` flags from the root frame layout.
+                        rootFrameLayout.setSystemUiVisibility(0);
 
-                        // Add the translucent status flag if it is unset.  This also resets `drawerLayout's` `View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`.
+                        // Add the translucent status flag.
                         getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
-
-                        // Remove any `SYSTEM_UI` flags from the coordinator layout.
-                        coordinatorLayout.setSystemUiVisibility(0);
-
-                        // Constrain the coordinator layout inside the status and navigation bars.
-                        coordinatorLayout.setFitsSystemWindows(true);
                     }
 
                     // Consume the double-tap.
@@ -829,6 +800,9 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         // Implement swipe to refresh.
         swipeRefreshLayout.setOnRefreshListener(() -> mainWebView.reload());
 
+        // The swipe to refresh circle doesn't always hide itself completely unless it is moved up 10 pixels.
+        swipeRefreshLayout.setProgressViewOffset(false, swipeRefreshLayout.getProgressViewStartOffset() - 10, swipeRefreshLayout.getProgressViewEndOffset());
+
         // Set the swipe to refresh color according to the theme.
         if (darkTheme) {
             swipeRefreshLayout.setColorSchemeResources(R.color.blue_600);
@@ -1051,7 +1025,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
             // Enter full screen video.
             @Override
-            public void onShowCustomView(View view, CustomViewCallback callback) {
+            public void onShowCustomView(View video, CustomViewCallback callback) {
                 // Set the full screen video flag.
                 displayingFullScreenVideo = true;
 
@@ -1061,29 +1035,34 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                     AdHelper.pauseAd(findViewById(R.id.adview));
                 }
 
-                // Remove the translucent overlays.
-                getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+                // Hide the keyboard.
+                inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
+
+                // Hide the main content relative layout.
+                mainContentRelativeLayout.setVisibility(View.GONE);
 
                 // 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.
+                // Remove the translucent status flag.  This is necessary so the root frame layout can fill the entire screen.
+                getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+
+                /* Hide the system bars.
+                 * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
+                 * SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN makes the root frame layout fill the area that is normally reserved for the status bar.
                  * 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.
                  */
-                coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
-
-                // Set the coordinator layout to fill the entire screen.
-                coordinatorLayout.setFitsSystemWindows(false);
-
-                // Hide the action bar.
-                actionBar.hide();
+                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);
 
                 // Disable the sliding drawers.
                 drawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_LOCKED_CLOSED);
 
-                // Add `view` to `fullScreenVideoFrameLayout` and display it on the screen.
-                fullScreenVideoFrameLayout.addView(view);
+                // Add the video view to the full screen video frame layout.
+                fullScreenVideoFrameLayout.addView(video);
+
+                // Show the full screen video frame layout.
                 fullScreenVideoFrameLayout.setVisibility(View.VISIBLE);
             }
 
@@ -1093,76 +1072,52 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 // Unset the full screen video flag.
                 displayingFullScreenVideo = false;
 
-                // Hide `fullScreenVideoFrameLayout`.
+                // Remove all the views from the full screen video frame layout.
                 fullScreenVideoFrameLayout.removeAllViews();
+
+                // Hide the full screen video frame layout.
                 fullScreenVideoFrameLayout.setVisibility(View.GONE);
 
                 // Enable the sliding drawers.
                 drawerLayout.setDrawerLockMode(DrawerLayout.LOCK_MODE_UNLOCKED);
 
+                // Show the main content relative layout.
+                mainContentRelativeLayout.setVisibility(View.VISIBLE);
+
                 // Apply the appropriate full screen mode the `SYSTEM_UI` flags.
                 if (fullScreenBrowsingModeEnabled && inFullScreenBrowsingMode) {  // Privacy Browser is currently in full screen browsing mode.
-                    if (hideSystemBarsOnFullscreen) {  // Hide everything.
-                        // Remove the translucent navigation setting if it is currently flagged.
-                        getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
-
-                        // Remove the translucent status bar overlay.
-                        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.
-                         */
-                        coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
-                    } else {  // Hide everything except the status and navigation bars.
-                        // Remove any `SYSTEM_UI` flags from the coordinator layout.
-                        coordinatorLayout.setSystemUiVisibility(0);
-
-                        // Add the translucent status flag if it is unset.
-                        getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
-
-                        if (translucentNavigationBarOnFullscreen) {
-                            // Set the navigation bar to be translucent.  This also resets `drawerLayout's` `View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`.
-                            getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
-                        } else {
-                            // Set the navigation bar to be black.
-                            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
-                        }
-                    }
-                } else {  // Switch to normal viewing mode.
-                    // Show the action bar if the find on page linear layout is not visible.
-                    if (findOnPageLinearLayout.getVisibility() == View.GONE) {
-                        actionBar.show();
+                    // Hide the app bar if specified.
+                    if (hideAppBar) {
+                        actionBar.hide();
                     }
 
-                    // Show the `BannerAd` in the free flavor.
+                    // Hide the banner ad in the free flavor.
                     if (BuildConfig.FLAVOR.contentEquals("free")) {
-                        // Initialize the ad.  The AdView is destroyed and recreated, which changes the ID, every time it is reloaded to handle possible rotations.
-                        AdHelper.initializeAds(findViewById(R.id.adview), getApplicationContext(), fragmentManager, getString(R.string.google_app_id), getString(R.string.ad_unit_id));
+                        AdHelper.hideAd(findViewById(R.id.adview));
                     }
 
-                    // Remove any `SYSTEM_UI` flags from the coordinator layout.
-                    coordinatorLayout.setSystemUiVisibility(0);
-
-                    // Remove the translucent navigation bar flag if it is set.
-                    getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
+                    // Remove the translucent status flag.  This is necessary so the root frame layout can fill the entire screen.
+                    getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+
+                    /* Hide the system bars.
+                     * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
+                     * SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN makes the root frame layout fill the area that is normally reserved for the status bar.
+                     * 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.
+                     */
+                    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.
+                    // Remove the `SYSTEM_UI` flags from the root frame layout.
+                    rootFrameLayout.setSystemUiVisibility(0);
 
-                    // Add the translucent status flag if it is unset.  This also resets `drawerLayout's` `View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`.
+                    // Add the translucent status flag.
                     getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
-
-                    // Constrain the coordinator layout inside the status and navigation bars.
-                    coordinatorLayout.setFitsSystemWindows(true);
-
-                    // Show the action bar.
-                    actionBar.show();
                 }
 
-                // Show the ad if this is the free flavor.
-                if (BuildConfig.FLAVOR.contentEquals("free")) {
-                    // Reload the ad.  The AdView is destroyed and recreated, which changes the ID, every time it is reloaded to handle possible rotations.
+                // Reload the ad for the free flavor if not in full screen mode.
+                if (BuildConfig.FLAVOR.contentEquals("free") && !inFullScreenBrowsingMode) {
+                    // Reload the ad.
                     AdHelper.loadAd(findViewById(R.id.adview), getApplicationContext(), getString(R.string.ad_unit_id));
                 }
             }
@@ -1627,7 +1582,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                     mainWebView.setVisibility(View.INVISIBLE);
                 }
 
-                // Hide the keyboard.  `0` indicates no additional flags.
+                // Hide the keyboard.
                 inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
 
                 // Check to see if Privacy Browser is waiting on Orbot.
@@ -1974,12 +1929,6 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         // Resume `mainWebView`.
         mainWebView.onResume();
 
-        // Resume the adView for the free flavor.
-        if (BuildConfig.FLAVOR.contentEquals("free")) {
-            // Resume the ad.
-            AdHelper.resumeAd(findViewById(R.id.adview));
-        }
-
         // Display a message to the user if waiting for Orbot.
         if (waitingForOrbot && !orbotStatus.equals("ON")) {
             // Disable the wide view port so that the waiting for Orbot text is displayed correctly.
@@ -1989,22 +1938,24 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
             mainWebView.loadData(waitingForOrbotHtmlString, "text/html", null);
         }
 
-        if (displayingFullScreenVideo) {
-            // Get handles for the layouts that need to be modified.
-            DrawerLayout drawerLayout = findViewById(R.id.drawerlayout);
-            CoordinatorLayout coordinatorLayout = findViewById(R.id.coordinatorlayout);
+        if (displayingFullScreenVideo || inFullScreenBrowsingMode) {
+            // Get a handle for the root frame layouts.
+            FrameLayout rootFrameLayout = findViewById(R.id.root_framelayout);
 
-            // Remove the translucent overlays.
+            // Remove the translucent status flag.  This is necessary so the root frame layout can fill the entire screen.
             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.
+            /* Hide the system bars.
+             * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
+             * SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN makes the root frame layout fill the area that is normally reserved for the status bar.
              * 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.
              */
-            coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
+            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 if (BuildConfig.FLAVOR.contentEquals("free")) {  // Resume the adView for the free flavor.
+            // Resume the ad.
+            AdHelper.resumeAd(findViewById(R.id.adview));
         }
     }
 
@@ -2307,6 +2258,23 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
     // removeAllCookies is deprecated, but it is required for API < 21.
     @SuppressWarnings("deprecation")
     public boolean onOptionsItemSelected(MenuItem menuItem) {
+        // Reenter full screen browsing mode if it was interrupted by the options menu.  <https://redmine.stoutner.com/issues/389>
+        if (inFullScreenBrowsingMode) {
+            // Remove the translucent status flag.  This is necessary so the root frame layout can fill the entire screen.
+            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+
+            FrameLayout rootFrameLayout = findViewById(R.id.root_framelayout);
+
+            /* Hide the system bars.
+             * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
+             * SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN makes the root frame layout fill the area that is normally reserved for the status bar.
+             * 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.
+             */
+            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);
+        }
+
         // Get the selected menu item ID.
         int menuItemId = menuItem.getItemId();
 
@@ -2839,16 +2807,17 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 return true;
 
             case R.id.find_on_page:
-                // Get a handle for the toolbar.
+                // Get a handle for the views.
                 Toolbar toolbar = findViewById(R.id.toolbar);
+                LinearLayout findOnPageLinearLayout = findViewById(R.id.find_on_page_linearlayout);
 
-                // Hide the URL app bar.
+                // Hide the toolbar.
                 toolbar.setVisibility(View.GONE);
 
-                // Show the Find on Page `RelativeLayout`.
+                // Show the find on page linear layout.
                 findOnPageLinearLayout.setVisibility(View.VISIBLE);
 
-                // Display the keyboard.  We have to wait 200 ms before running the command to work around a bug in Android.
+                // Display the keyboard.  The app must wait 200 ms before running the command to work around a bug in Android.
                 // http://stackoverflow.com/questions/5520085/android-show-softkeyboard-with-showsoftinput-is-not-working
                 findOnPageEditText.postDelayed(() -> {
                     // Set the focus on `findOnPageEditText`.
@@ -2901,11 +2870,11 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
                 return true;
 
             case R.id.add_to_homescreen:
-                // Show the alert dialog.
-                DialogFragment createHomeScreenShortcutDialogFragment = new CreateHomeScreenShortcutDialog();
-                createHomeScreenShortcutDialogFragment.show(getSupportFragmentManager(), getString(R.string.create_shortcut));
+                // Instantiate the create home screen shortcut dialog.
+                DialogFragment createHomeScreenShortcutDialogFragment = CreateHomeScreenShortcutDialog.createDialog(mainWebView.getTitle(), formattedUrlString, favoriteIconBitmap);
 
-                //Everything else will be handled by the alert dialog and the associated listener below.
+                // Show the create home screen shortcut dialog.
+                createHomeScreenShortcutDialogFragment.show(getSupportFragmentManager(), getString(R.string.create_shortcut));
                 return true;
 
             case R.id.proxy_through_orbot:
@@ -3204,12 +3173,13 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         // Run the default commands.
         super.onPostCreate(savedInstanceState);
 
-        // Sync the state of the DrawerToggle after onRestoreInstanceState has finished.
+        // Sync the state of the DrawerToggle after the default `onRestoreInstanceState()` has finished.  This creates the navigation drawer icon.
         actionBarDrawerToggle.syncState();
     }
 
     @Override
     public void onConfigurationChanged(Configuration newConfig) {
+        // Run the default commands.
         super.onConfigurationChanged(newConfig);
 
         // Get the status bar pixel size.
@@ -3515,17 +3485,29 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
     @Override
     public void onCreateBookmark(DialogFragment dialogFragment) {
-        // Get the `EditTexts` from the `dialogFragment`.
+        // Get the views from the dialog fragment.
         EditText createBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.create_bookmark_name_edittext);
         EditText createBookmarkUrlEditText = dialogFragment.getDialog().findViewById(R.id.create_bookmark_url_edittext);
 
-        // Extract the strings from the `EditTexts`.
+        // Extract the strings from the edit texts.
         String bookmarkNameString = createBookmarkNameEditText.getText().toString();
         String bookmarkUrlString = createBookmarkUrlEditText.getText().toString();
 
-        // Convert the favoriteIcon Bitmap to a byte array.  `0` is for lossless compression (the only option for a PNG).
+        // Get a copy of the favorite icon bitmap.
+        Bitmap favoriteIcon = favoriteIconBitmap;
+
+        // Scale the favorite icon bitmap down if it is larger than 256 x 256.  Filtering uses bilinear interpolation.
+        if ((favoriteIcon.getHeight() > 256) || (favoriteIcon.getWidth() > 256)) {
+            favoriteIcon = Bitmap.createScaledBitmap(favoriteIcon, 256, 256, true);
+        }
+
+        // Create a favorite icon byte array output stream.
         ByteArrayOutputStream favoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
-        favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, favoriteIconByteArrayOutputStream);
+
+        // Convert the favorite icon bitmap to a byte array.  `0` is for lossless compression (the only option for a PNG).
+        favoriteIcon.compress(Bitmap.CompressFormat.PNG, 0, favoriteIconByteArrayOutputStream);
+
+        // Convert the favorite icon byte array stream to a byte array.
         byte[] favoriteIconByteArray = favoriteIconByteArrayOutputStream.toByteArray();
 
         // Display the new bookmark below the current items in the (0 indexed) list.
@@ -3537,7 +3519,7 @@ 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 bookmark.
@@ -3546,7 +3528,7 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
 
     @Override
     public void onCreateBookmarkFolder(DialogFragment dialogFragment) {
-        // Get handles for the views in `dialogFragment`.
+        // Get handles for the views in the dialog fragment.
         EditText createFolderNameEditText = dialogFragment.getDialog().findViewById(R.id.create_folder_name_edittext);
         RadioButton defaultFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.create_folder_default_icon_radiobutton);
         ImageView folderIconImageView = dialogFragment.getDialog().findViewById(R.id.create_folder_default_icon);
@@ -3554,20 +3536,36 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         // Get new folder name string.
         String folderNameString = createFolderNameEditText.getText().toString();
 
-        // Get the new folder icon `Bitmap`.
+        // Create a folder icon bitmap.
         Bitmap folderIconBitmap;
+
+        // Set the folder icon bitmap according to the dialog.
         if (defaultFolderIconRadioButton.isChecked()) {  // Use the default folder icon.
-            // Get the default folder icon and convert it to a `Bitmap`.
+            // Get the default folder icon drawable.
             Drawable folderIconDrawable = folderIconImageView.getDrawable();
+
+            // Convert the folder icon drawable to a bitmap drawable.
             BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
+
+            // Convert the folder icon bitmap drawable to a bitmap.
             folderIconBitmap = folderIconBitmapDrawable.getBitmap();
-        } else {  // Use the `WebView` favorite icon.
+        } else {  // Use the WebView favorite icon.
+            // Get a copy of the favorite icon bitmap.
             folderIconBitmap = favoriteIconBitmap;
+
+            // Scale the folder icon bitmap down if it is larger than 256 x 256.  Filtering uses bilinear interpolation.
+            if ((folderIconBitmap.getHeight() > 256) || (folderIconBitmap.getWidth() > 256)) {
+                folderIconBitmap = Bitmap.createScaledBitmap(folderIconBitmap, 256, 256, true);
+            }
         }
 
-        // Convert `folderIconBitmap` to a byte array.  `0` is for lossless compression (the only option for a PNG).
+        // Create a folder icon byte array output stream.
         ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
+
+        // Convert the folder icon bitmap to a byte array.  `0` is for lossless compression (the only option for a PNG).
         folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
+
+        // Convert the folder icon byte array stream to a byte array.
         byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
 
         // Move all the bookmarks down one in the display order.
@@ -3590,28 +3588,138 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
     }
 
     @Override
-    public void onCreateHomeScreenShortcut(DialogFragment dialogFragment) {
-        // Get the shortcut name.
-        EditText shortcutNameEditText = dialogFragment.getDialog().findViewById(R.id.shortcut_name_edittext);
-        String shortcutNameString = shortcutNameEditText.getText().toString();
+    public void onSaveBookmark(DialogFragment dialogFragment, int selectedBookmarkDatabaseId) {
+        // Get handles for the views from `dialogFragment`.
+        EditText editBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_name_edittext);
+        EditText editBookmarkUrlEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_url_edittext);
+        RadioButton currentBookmarkIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_current_icon_radiobutton);
+
+        // Store the bookmark strings.
+        String bookmarkNameString = editBookmarkNameEditText.getText().toString();
+        String bookmarkUrlString = editBookmarkUrlEditText.getText().toString();
+
+        // Update the bookmark.
+        if (currentBookmarkIconRadioButton.isChecked()) {  // Update the bookmark without changing the favorite icon.
+            bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString);
+        } else {  // Update the bookmark using the `WebView` favorite icon.
+            // Get a copy of the favorite icon bitmap.
+            Bitmap favoriteIcon = favoriteIconBitmap;
+
+            // Scale the favorite icon bitmap down if it is larger than 256 x 256.  Filtering uses bilinear interpolation.
+            if ((favoriteIcon.getHeight() > 256) || (favoriteIcon.getWidth() > 256)) {
+                favoriteIcon = Bitmap.createScaledBitmap(favoriteIcon, 256, 256, true);
+            }
+
+            // Create a favorite icon byte array output stream.
+            ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
+
+            // Convert the favorite icon bitmap to a byte array.  `0` is for lossless compression (the only option for a PNG).
+            favoriteIcon.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
+
+            // Convert the favorite icon byte array stream to a byte array.
+            byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
+
+            //  Update the bookmark and the favorite icon.
+            bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, newFavoriteIconByteArray);
+        }
+
+        // Update the bookmarks cursor with the current contents of this folder.
+        bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentBookmarksFolder);
+
+        // Update the list view.
+        bookmarksCursorAdapter.changeCursor(bookmarksCursor);
+    }
+
+    @Override
+    public void onSaveBookmarkFolder(DialogFragment dialogFragment, int selectedFolderDatabaseId) {
+        // Get handles for the views from `dialogFragment`.
+        EditText editFolderNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_folder_name_edittext);
+        RadioButton currentFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_current_icon_radiobutton);
+        RadioButton defaultFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_radiobutton);
+        ImageView defaultFolderIconImageView = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_imageview);
+
+        // Get the new folder name.
+        String newFolderNameString = editFolderNameEditText.getText().toString();
+
+        // Check if the favorite icon has changed.
+        if (currentFolderIconRadioButton.isChecked()) {  // Only the name has changed.
+            // Update the name in the database.
+            bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString);
+        } else if (!currentFolderIconRadioButton.isChecked() && newFolderNameString.equals(oldFolderNameString)) {  // Only the icon has changed.
+            // Create the new folder icon Bitmap.
+            Bitmap folderIconBitmap;
+
+            // Populate the new folder icon bitmap.
+            if (defaultFolderIconRadioButton.isChecked()) {
+                // Get the default folder icon drawable.
+                Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
+
+                // Convert the folder icon drawable to a bitmap drawable.
+                BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
+
+                // Convert the folder icon bitmap drawable to a bitmap.
+                folderIconBitmap = folderIconBitmapDrawable.getBitmap();
+            } else {  // Use the `WebView` favorite icon.
+                // Get a copy of the favorite icon bitmap.
+                folderIconBitmap = MainWebViewActivity.favoriteIconBitmap;
+
+                // Scale the folder icon bitmap down if it is larger than 256 x 256.  Filtering uses bilinear interpolation.
+                if ((folderIconBitmap.getHeight() > 256) || (folderIconBitmap.getWidth() > 256)) {
+                    folderIconBitmap = Bitmap.createScaledBitmap(folderIconBitmap, 256, 256, true);
+                }
+            }
+
+            // Create a folder icon byte array output stream.
+            ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
+
+            // Convert the folder icon bitmap to a byte array.  `0` is for lossless compression (the only option for a PNG).
+            folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
+
+            // Convert the folder icon byte array stream to a byte array.
+            byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
+
+            // Update the folder icon in the database.
+            bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, newFolderIconByteArray);
+        } else {  // The folder icon and the name have changed.
+            // Get the new folder icon `Bitmap`.
+            Bitmap folderIconBitmap;
+            if (defaultFolderIconRadioButton.isChecked()) {
+                // Get the default folder icon drawable.
+                Drawable folderIconDrawable = defaultFolderIconImageView.getDrawable();
+
+                // Convert the folder icon drawable to a bitmap drawable.
+                BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
+
+                // Convert the folder icon bitmap drawable to a bitmap.
+                folderIconBitmap = folderIconBitmapDrawable.getBitmap();
+            } else {  // Use the `WebView` favorite icon.
+                // Get a copy of the favorite icon bitmap.
+                folderIconBitmap = MainWebViewActivity.favoriteIconBitmap;
+
+                // Scale the folder icon bitmap down if it is larger than 256 x 256.  Filtering uses bilinear interpolation.
+                if ((folderIconBitmap.getHeight() > 256) || (folderIconBitmap.getWidth() > 256)) {
+                    folderIconBitmap = Bitmap.createScaledBitmap(folderIconBitmap, 256, 256, true);
+                }
+            }
 
-        // Convert the favorite icon bitmap to an `Icon`.  `IconCompat` is required until API >= 26.
-        IconCompat favoriteIcon = IconCompat.createWithBitmap(favoriteIconBitmap);
+            // Create a folder icon byte array output stream.
+            ByteArrayOutputStream newFolderIconByteArrayOutputStream = new ByteArrayOutputStream();
 
-        // Setup the shortcut intent.
-        Intent shortcutIntent = new Intent(Intent.ACTION_VIEW);
-        shortcutIntent.setData(Uri.parse(formattedUrlString));
+            // Convert the folder icon bitmap to a byte array.  `0` is for lossless compression (the only option for a PNG).
+            folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFolderIconByteArrayOutputStream);
 
-        // Create a shortcut info builder.  The shortcut name becomes the shortcut ID.
-        ShortcutInfoCompat.Builder shortcutInfoBuilder = new ShortcutInfoCompat.Builder(this, shortcutNameString);
+            // Convert the folder icon byte array stream to a byte array.
+            byte[] newFolderIconByteArray = newFolderIconByteArrayOutputStream.toByteArray();
 
-        // Add the required fields to the shortcut info builder.
-        shortcutInfoBuilder.setIcon(favoriteIcon);
-        shortcutInfoBuilder.setIntent(shortcutIntent);
-        shortcutInfoBuilder.setShortLabel(shortcutNameString);
+            // Update the folder name and icon in the database.
+            bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString, newFolderIconByteArray);
+        }
 
-        // Request the pin.  `ShortcutManagerCompat` can be switched to `ShortcutManager` once API >= 26.
-        ShortcutManagerCompat.requestPinShortcut(this, shortcutInfoBuilder.build(), null);
+        // Update the bookmarks cursor with the current contents of this folder.
+        bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentBookmarksFolder);
+
+        // Update the `ListView`.
+        bookmarksCursorAdapter.changeCursor(bookmarksCursor);
     }
 
     @Override
@@ -3773,99 +3881,6 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         }
     }
 
-    @Override
-    public void onSaveBookmark(DialogFragment dialogFragment, int selectedBookmarkDatabaseId) {
-        // Get handles for the views from `dialogFragment`.
-        EditText editBookmarkNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_name_edittext);
-        EditText editBookmarkUrlEditText = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_url_edittext);
-        RadioButton currentBookmarkIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_bookmark_current_icon_radiobutton);
-
-        // Store the bookmark strings.
-        String bookmarkNameString = editBookmarkNameEditText.getText().toString();
-        String bookmarkUrlString = editBookmarkUrlEditText.getText().toString();
-
-        // Update the bookmark.
-        if (currentBookmarkIconRadioButton.isChecked()) {  // Update the bookmark without changing the favorite icon.
-            bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString);
-        } else {  // Update the bookmark using the `WebView` favorite icon.
-            // Convert the favorite icon to a byte array.  `0` is for lossless compression (the only option for a PNG).
-            ByteArrayOutputStream newFavoriteIconByteArrayOutputStream = new ByteArrayOutputStream();
-            favoriteIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, newFavoriteIconByteArrayOutputStream);
-            byte[] newFavoriteIconByteArray = newFavoriteIconByteArrayOutputStream.toByteArray();
-
-            //  Update the bookmark and the favorite icon.
-            bookmarksDatabaseHelper.updateBookmark(selectedBookmarkDatabaseId, bookmarkNameString, bookmarkUrlString, newFavoriteIconByteArray);
-        }
-
-        // Update the bookmarks cursor with the current contents of this folder.
-        bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentBookmarksFolder);
-
-        // Update the `ListView`.
-        bookmarksCursorAdapter.changeCursor(bookmarksCursor);
-    }
-
-    @Override
-    public void onSaveBookmarkFolder(DialogFragment dialogFragment, int selectedFolderDatabaseId) {
-        // Get handles for the views from `dialogFragment`.
-        EditText editFolderNameEditText = dialogFragment.getDialog().findViewById(R.id.edit_folder_name_edittext);
-        RadioButton currentFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_current_icon_radiobutton);
-        RadioButton defaultFolderIconRadioButton = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_radiobutton);
-        ImageView folderIconImageView = dialogFragment.getDialog().findViewById(R.id.edit_folder_default_icon_imageview);
-
-        // Get the new folder name.
-        String newFolderNameString = editFolderNameEditText.getText().toString();
-
-        // Check if the favorite icon has changed.
-        if (currentFolderIconRadioButton.isChecked()) {  // Only the name has changed.
-            // Update the name in the database.
-            bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString);
-        } else if (!currentFolderIconRadioButton.isChecked() && newFolderNameString.equals(oldFolderNameString)) {  // Only the icon has changed.
-            // Get the new folder icon `Bitmap`.
-            Bitmap folderIconBitmap;
-            if (defaultFolderIconRadioButton.isChecked()) {
-                // Get the default folder icon and convert it to a `Bitmap`.
-                Drawable folderIconDrawable = folderIconImageView.getDrawable();
-                BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
-                folderIconBitmap = folderIconBitmapDrawable.getBitmap();
-            } else {  // Use the `WebView` favorite icon.
-                folderIconBitmap = favoriteIconBitmap;
-            }
-
-            // Convert the folder `Bitmap` to a byte array.  `0` is for lossless compression (the only option for a PNG).
-            ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
-            folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
-            byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
-
-            // Update the folder icon in the database.
-            bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, folderIconByteArray);
-        } else {  // The folder icon and the name have changed.
-            // Get the new folder icon `Bitmap`.
-            Bitmap folderIconBitmap;
-            if (defaultFolderIconRadioButton.isChecked()) {
-                // Get the default folder icon and convert it to a `Bitmap`.
-                Drawable folderIconDrawable = folderIconImageView.getDrawable();
-                BitmapDrawable folderIconBitmapDrawable = (BitmapDrawable) folderIconDrawable;
-                folderIconBitmap = folderIconBitmapDrawable.getBitmap();
-            } else {  // Use the `WebView` favorite icon.
-                folderIconBitmap = MainWebViewActivity.favoriteIconBitmap;
-            }
-
-            // Convert the folder `Bitmap` to a byte array.  `0` is for lossless compression (the only option for a PNG).
-            ByteArrayOutputStream folderIconByteArrayOutputStream = new ByteArrayOutputStream();
-            folderIconBitmap.compress(Bitmap.CompressFormat.PNG, 0, folderIconByteArrayOutputStream);
-            byte[] folderIconByteArray = folderIconByteArrayOutputStream.toByteArray();
-
-            // Update the folder name and icon in the database.
-            bookmarksDatabaseHelper.updateFolder(selectedFolderDatabaseId, oldFolderNameString, newFolderNameString, folderIconByteArray);
-        }
-
-        // Update the bookmarks cursor with the current contents of this folder.
-        bookmarksCursor = bookmarksDatabaseHelper.getBookmarksByDisplayOrder(currentBookmarksFolder);
-
-        // Update the `ListView`.
-        bookmarksCursorAdapter.changeCursor(bookmarksCursor);
-    }
-
     @Override
     public void onHttpAuthenticationCancel() {
         // Cancel the `HttpAuthHandler`.
@@ -4078,22 +4093,23 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
     }
 
     public void closeFindOnPage(View view) {
+        // Get a handle for the views.
+        Toolbar toolbar = findViewById(R.id.toolbar);
+        LinearLayout findOnPageLinearLayout = findViewById(R.id.find_on_page_linearlayout);
+
         // Delete the contents of `find_on_page_edittext`.
         findOnPageEditText.setText(null);
 
         // Clear the highlighted phrases.
         mainWebView.clearMatches();
 
-        // Hide the Find on Page `RelativeLayout`.
+        // Hide the find on page linear layout.
         findOnPageLinearLayout.setVisibility(View.GONE);
 
-        // Get a handle for the toolbar.
-        Toolbar toolbar = findViewById(R.id.toolbar);
-
         // Show the toolbar.
         toolbar.setVisibility(View.VISIBLE);
 
-        // Hide the keyboard so we can see the webpage.  `0` indicates no additional flags.
+        // Hide the keyboard.
         inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
     }
 
@@ -4106,10 +4122,16 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
         boolean doNotTrackEnabled = sharedPreferences.getBoolean("do_not_track", false);
         proxyThroughOrbot = sharedPreferences.getBoolean("proxy_through_orbot", false);
         fullScreenBrowsingModeEnabled = sharedPreferences.getBoolean("full_screen_browsing_mode", false);
-        hideSystemBarsOnFullscreen = sharedPreferences.getBoolean("hide_system_bars", false);
-        translucentNavigationBarOnFullscreen = sharedPreferences.getBoolean("translucent_navigation_bar", true);
+        hideAppBar = sharedPreferences.getBoolean("hide_app_bar", true);
         downloadWithExternalApp = sharedPreferences.getBoolean("download_with_external_app", false);
 
+        // Get handles for the views that need to be modified.  `getSupportActionBar()` must be used until the minimum API >= 21.
+        FrameLayout rootFrameLayout = findViewById(R.id.root_framelayout);
+        ActionBar actionBar = getSupportActionBar();
+
+        // Remove the incorrect lint warnings below that the action bar might be null.
+        assert actionBar != null;
+
         // Apply the proxy through Orbot settings.
         applyProxyThroughOrbot(false);
 
@@ -4120,75 +4142,56 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
             customHeaders.remove("DNT");
         }
 
-        // Get handles for the views that need to be modified.  `getSupportActionBar()` must be used until the minimum API >= 21.
-        DrawerLayout drawerLayout = findViewById(R.id.drawerlayout);
-        CoordinatorLayout coordinatorLayout = findViewById(R.id.coordinatorlayout);
-        ActionBar actionBar = getSupportActionBar();
+        // Set the app bar scrolling.
+        mainWebView.setNestedScrollingEnabled(sharedPreferences.getBoolean("scroll_app_bar", true));
 
-        // Apply the appropriate full screen mode the `SYSTEM_UI` flags.
+        // Update the full screen browsing mode settings.
         if (fullScreenBrowsingModeEnabled && inFullScreenBrowsingMode) {  // Privacy Browser is currently in full screen browsing mode.
-            if (hideSystemBarsOnFullscreen) {  // Hide everything.
-                // Remove the translucent navigation setting if it is currently flagged.
-                getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
-
-                // Remove the translucent status bar overlay.
-                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);
+            // Update the visibility of the app bar, which might have changed in the settings.
+            if (hideAppBar) {
+                actionBar.hide();
+            } else {
+                actionBar.show();
+            }
 
-                /* 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.
-                 */
-                coordinatorLayout.setSystemUiVisibility(View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY);
-            } else {  // Hide everything except the status and navigation bars.
-                // Remove any `SYSTEM_UI` flags from the coordinator layout.
-                coordinatorLayout.setSystemUiVisibility(0);
+            // Hide the banner ad in the free flavor.
+            if (BuildConfig.FLAVOR.contentEquals("free")) {
+                AdHelper.hideAd(findViewById(R.id.adview));
+            }
 
-                // Add the translucent status flag if it is unset.
-                getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
+            // Remove the translucent status flag.  This is necessary so the root frame layout can fill the entire screen.
+            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
 
-                if (translucentNavigationBarOnFullscreen) {
-                    // Set the navigation bar to be translucent.
-                    getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
-                } else {
-                    // Set the navigation bar to be black.
-                    getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
-                }
-            }
+            /* Hide the system bars.
+             * SYSTEM_UI_FLAG_FULLSCREEN hides the status bar at the top of the screen.
+             * SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN makes the root frame layout fill the area that is normally reserved for the status bar.
+             * 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.
+             */
+            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 {  // Privacy Browser is not in full screen browsing mode.
             // 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;
 
-            // Remove the incorrect lint warning below that the action bar might be null.
-            assert actionBar != null;
-
-            // Show the action bar if the find on page linear layout is not visible.
-            if (findOnPageLinearLayout.getVisibility() == View.GONE) {
-                actionBar.show();
-            }
+            // Show the app bar.
+            actionBar.show();
 
-            // Show the `BannerAd` in the free flavor.
+            // Show the banner ad in the free flavor.
             if (BuildConfig.FLAVOR.contentEquals("free")) {
-                // Initialize the ad.  The AdView is destroyed and recreated, which changes the ID, every time it is reloaded to handle possible rotations.
+                // Initialize the ads.  If this isn't the first run, `loadAd()` will be automatically called instead.
                 AdHelper.initializeAds(findViewById(R.id.adview), getApplicationContext(), fragmentManager, getString(R.string.google_app_id), getString(R.string.ad_unit_id));
             }
 
-            // Remove any `SYSTEM_UI` flags from the coordinator layout.
-            coordinatorLayout.setSystemUiVisibility(0);
+            // Remove the `SYSTEM_UI` flags from the root frame layout.
+            rootFrameLayout.setSystemUiVisibility(0);
 
-            // Remove the translucent navigation bar flag if it is set.
-            getWindow().clearFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_NAVIGATION);
-
-            // Add the translucent status flag if it is unset.  This also resets `drawerLayout's` `View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN`.
+            // Add the translucent status flag.
             getWindow().addFlags(WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
-
-            // Constrain the coordinator layout inside the status and navigation bars.
-            coordinatorLayout.setFitsSystemWindows(true);
         }
     }
 
+
     // `reloadWebsite` is used if returning from the Domains activity.  Otherwise JavaScript might not function correctly if it is newly enabled.
     // The deprecated `.getDrawable()` must be used until the minimum API >= 21.
     @SuppressWarnings("deprecation")
@@ -4584,9 +4587,6 @@ public class MainWebViewActivity extends AppCompatActivity implements CreateBook
             if (mainMenu != null) {
                 updatePrivacyIcons(true);
             }
-
-            // TODO.
-            swipeRefreshLayout.setEnabled(false);
         }
 
         // Reload the website if returning from the Domains activity.