]> gitweb.stoutner.com Git - PrivacyBrowserAndroid.git/blobdiff - app/src/main/java/com/stoutner/privacybrowser/activities/MainWebViewActivity.java
Create a dark theme for `SettingsActivity`.
[PrivacyBrowserAndroid.git] / app / src / main / java / com / stoutner / privacybrowser / activities / MainWebViewActivity.java
index 873d11248fee48a9f574d4a89f6d5c5bf17e6f0b..ff129178e93398ebf299bd2f7734cda47b6dc745 100644 (file)
@@ -34,6 +34,7 @@ import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.database.Cursor;
 import android.graphics.Bitmap;
+import android.graphics.Typeface;
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
@@ -59,7 +60,10 @@ import android.support.v7.app.AppCompatActivity;
 import android.support.v7.app.AppCompatDialogFragment;
 import android.support.v7.widget.Toolbar;
 import android.text.Editable;
+import android.text.Spanned;
 import android.text.TextWatcher;
+import android.text.style.ForegroundColorSpan;
+import android.text.style.StyleSpan;
 import android.util.Patterns;
 import android.view.ContextMenu;
 import android.view.GestureDetector;
@@ -118,8 +122,10 @@ import java.util.Set;
 public class MainWebViewActivity extends AppCompatActivity implements NavigationView.OnNavigationItemSelectedListener, CreateHomeScreenShortcutDialog.CreateHomeScreenSchortcutListener,
         SslCertificateErrorDialog.SslCertificateErrorListener, DownloadFileDialog.DownloadFileListener, DownloadImageDialog.DownloadImageListener, UrlHistoryDialog.UrlHistoryListener {
 
-    // `appBar` is public static so it can be accessed from `OrbotProxyHelper`.  It is also used in `onCreate()`, `onOptionsItemSelected()`, `closeFindOnPage()`, and `applyAppSettings()`.
-    public static ActionBar appBar;
+    // `darkTheme` is public static so it can be accessed from `AboutActivity`, `GuideActivity`, `AddDomainDialog`, `SettingsActivity`, `CreateBookmarkDialog`, `CreateBookmarkFolderDialog`, `DownloadFileDialog`, `DownloadImageDialog`, `EditBookmarkDialog`,
+    // `EditBookmarkFolderDialog`, `MoveToFolderDialog`, `SslCertificateErrorDialog`, `UrlHistoryDialog`, `ViewSslCertificateDialog`, `CreateHomeScreenShortcutDialog`, and `OrbotProxyHelper`.
+    // It is also used in `onCreate()`, `applyAppSettings()`, `applyDomainSettings()`, and `updatePrivacyIcons()`.
+    public static boolean darkTheme;
 
     // `favoriteIconBitmap` is public static so it can be accessed from `CreateHomeScreenShortcutDialog`, `BookmarksActivity`, `CreateBookmarkDialog`, `CreateBookmarkFolderDialog`, `EditBookmarkDialog`, `EditBookmarkFolderDialog`, `ViewSslCertificateDialog`.
     // It is also used in `onCreate()`, `onCreateHomeScreenShortcutCreate()`, and `applyDomainSettings`.
@@ -138,9 +144,15 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     // `webViewTitle` is public static so it can be accessed from `CreateBookmarkDialog` and `CreateHomeScreenShortcutDialog`.  It is also used in `onCreate()`.
     public static String webViewTitle;
 
-    // `displayWebpageImagesBoolean` is public static so it can be accessed from `DomainSettingsFragment`.  It is also used in `applyAppSettings` and `applyDomainSettings()`.
+    // `displayWebpageImagesBoolean` is public static so it can be accessed from `DomainSettingsFragment`.  It is also used in `applyAppSettings()` and `applyDomainSettings()`.
     public static boolean displayWebpageImagesBoolean;
 
+    // `reloadOnRestartBoolean` is public static so it can be accessed from `SettingsFragment`.  It is also used in `onRestart()`
+    public static boolean reloadOnRestartBoolean;
+
+
+    // `appBar` is used in `onCreate()`, `onOptionsItemSelected()`, `closeFindOnPage()`, and `applyAppSettings()`.
+    private ActionBar appBar;
 
     // `navigatingHistory` is used in `onCreate()`, `onNavigationItemSelected()`, and `applyDomainSettings()`.
     private boolean navigatingHistory;
@@ -237,9 +249,6 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     // `onTheFlyDisplayImagesSet` is used in `applyDomainSettings()` and `setDisplayWebpageImages()`.
     private boolean onTheFlyDisplayImagesSet;
 
-    // `loadingNewIntentBoolean` is used in `onNewIntent()` and `onRestart()`.
-    private boolean loadingNewIntentBoolean;
-
     // `waitingForOrbotData` is used in `onCreate()` and `applyAppSettings()`.
     private String waitingForOrbotHTMLString;
 
@@ -261,9 +270,21 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     // `supportAppBar` is used in `onCreate()`, `onOptionsItemSelected()`, and `closeFindOnPage()`.
     private Toolbar supportAppBar;
 
-    // `urlTextBox` is used in `onCreate()`, `onOptionsItemSelected()`, `loadUrlFromTextBox()`, and `loadUrl()`.
+    // `urlTextBox` is used in `onCreate()`, `onOptionsItemSelected()`, `loadUrlFromTextBox()`, `loadUrl()`, and `highlightUrlText()`.
     private EditText urlTextBox;
 
+    // `redColorSpan` is used in `onCreate()` and `highlightUrlText()`.
+    private ForegroundColorSpan redColorSpan;
+
+    // `initialGrayColorSpan` is sued in `onCreate()` and `highlightUrlText()`.
+    private ForegroundColorSpan initialGrayColorSpan;
+
+    // `finalGrayColorSpam` is used in `onCreate()` and `highlightUrlText()`.
+    private ForegroundColorSpan finalGrayColorSpan;
+
+    // `boldStyleSpan` is used in `onCreate()` and `highlightUrlText()`.
+    private StyleSpan boldStyleSpan;
+
     // `adView` is used in `onCreate()` and `onConfigurationChanged()`.
     private View adView;
 
@@ -279,8 +300,26 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     @Override
     // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.  The whole premise of Privacy Browser is built around an understanding of these dangers.
     @SuppressLint("SetJavaScriptEnabled")
+    // Remove Android Studio's warning about deprecations.  We have to use the deprecated `getColor()` until API >= 23.
+    @SuppressWarnings("deprecation")
     protected void onCreate(Bundle savedInstanceState) {
+        // Get a handle for `sharedPreferences`.  `this` references the current context.
+        SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
+
+        // Get the theme preference.
+        darkTheme = sharedPreferences.getBoolean("dark_theme", false);
+
+        // Set the activity theme.
+        if (darkTheme) {
+            setTheme(R.style.PrivacyBrowserDark);
+        } else {
+            setTheme(R.style.PrivacyBrowserLight);
+        }
+
+        // Run the default commands.
         super.onCreate(savedInstanceState);
+
+        // Set the content view.
         setContentView(R.layout.main_drawerlayout);
 
         // Get a handle for `inputMethodManager`.
@@ -298,8 +337,36 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         appBar.setCustomView(R.layout.url_app_bar);
         appBar.setDisplayOptions(ActionBar.DISPLAY_SHOW_CUSTOM);
 
-        // Set the "go" button on the keyboard to load the URL in urlTextBox.
+        // Initialize the `ForegroundColorSpans` and `StyleSpan` for highlighting `urlTextBox`.  We have to use the deprecated `getColor()` until API >= 23.
+        redColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.red_a700));
+        initialGrayColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.gray_500));
+        finalGrayColorSpan = new ForegroundColorSpan(getResources().getColor(R.color.gray_500));
+        boldStyleSpan = new StyleSpan(Typeface.BOLD);
+
+        // Get a handle for `urlTextBox`.
         urlTextBox = (EditText) appBar.getCustomView().findViewById(R.id.url_edittext);
+
+        // Remove the formatting from `urlTextBar` when the user is editing the text.
+        urlTextBox.setOnFocusChangeListener(new View.OnFocusChangeListener() {
+            @Override
+            public void onFocusChange(View v, boolean hasFocus) {
+                if (hasFocus) {  // The user is editing `urlTextBox`.
+                    // Remove the highlighting.
+                    urlTextBox.getText().removeSpan(redColorSpan);
+                    urlTextBox.getText().removeSpan(initialGrayColorSpan);
+                    urlTextBox.getText().removeSpan(finalGrayColorSpan);
+                    urlTextBox.getText().removeSpan(boldStyleSpan);
+                } else {  // The user has stopped editing `urlTextBox`.
+                    // Reapply the highlighting.
+                    highlightUrlText();
+
+                    // Scroll to the beginning of the text.
+                    urlTextBox.setScrollX(0);
+                }
+            }
+        });
+
+        // Set the `Go` button on the keyboard to load the URL in `urlTextBox`.
         urlTextBox.setOnKeyListener(new View.OnKeyListener() {
             @Override
             public boolean onKey(View v, int keyCode, KeyEvent event) {
@@ -547,8 +614,11 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                     navigationForwardMenuItem.setEnabled(mainWebView.canGoForward());
                     navigationHistoryMenuItem.setEnabled((mainWebView.canGoBack() || mainWebView.canGoForward()));
 
-                    // Hide the keyboard so we can see the navigation menu.  `0` indicates no additional flags.
+                    // Hide the keyboard (if displayed) so we can see the navigation menu.  `0` indicates no additional flags.
                     inputMethodManager.hideSoftInputFromWindow(mainWebView.getWindowToken(), 0);
+
+                    // Clear the focus from `urlTextBox` if it has it.
+                    urlTextBox.clearFocus();
                 }
             }
         });
@@ -656,8 +726,11 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                     // We need to update `formattedUrlString` at the beginning of the load, so that if the user toggles JavaScript during the load the new website is reloaded.
                     formattedUrlString = url;
 
-                    // Display the loading URL is the URL text box.
-                    urlTextBox.setText(url);
+                    // Display the formatted URL text.
+                    urlTextBox.setText(formattedUrlString);
+
+                    // Apply text highlighting to `urlTextBox`.
+                    highlightUrlText();
 
                     // Apply any custom domain settings if the URL was loaded by navigating history.
                     if (navigatingHistory) {
@@ -696,7 +769,6 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                         // Set `formattedUrlString` to `""`.
                         formattedUrlString = "";
 
-                        // Update `urlTextBox`.
                         urlTextBox.setText(formattedUrlString);
 
                         // Request focus for `urlTextBox`.
@@ -705,7 +777,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                         // Display the keyboard.
                         inputMethodManager.showSoftInput(urlTextBox, 0);
 
-                        // Apply the domain settings.
+                        // Apply the domain settings.  This clears any settings from the previous domain.
                         applyDomainSettings(formattedUrlString);
                     } else {  // `WebView` has loaded a webpage.
                         // Set `formattedUrlString`.
@@ -713,7 +785,11 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
 
                         // Only update `urlTextBox` if the user is not typing in it.
                         if (!urlTextBox.hasFocus()) {
+                            // Display the formatted URL text.
                             urlTextBox.setText(formattedUrlString);
+
+                            // Apply text highlighting to `urlTextBox`.
+                            highlightUrlText();
                         }
                     }
 
@@ -911,9 +987,6 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
 
     @Override
     protected void onNewIntent(Intent intent) {
-        // Set `loadingNewIntentBoolean`.
-        loadingNewIntentBoolean = true;
-
         // Sets the new intent as the activity intent, so that any future `getIntent()`s pick up this one instead of creating a new activity.
         setIntent(intent);
 
@@ -948,12 +1021,13 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         // Set the display webpage images mode.
         setDisplayWebpageImages();
 
-        // Only reload `mainWebView` if not loading a new intent and not waiting for Orbot.
-        if (!loadingNewIntentBoolean && !waitingForOrbot) {
-            // Reload the webpage to remove images if `setDisplayWebpageImages` has turned them off.
+        // Reload the webpage if displaying of images has been disabled in `SettingsFragment`.
+        if (reloadOnRestartBoolean) {
+            // Reload `mainWebView`.
             mainWebView.reload();
-        } else if (loadingNewIntentBoolean) {  // Reset `loadingNewIntentBoolean` if this run comes from a new intent.
-            loadingNewIntentBoolean = false;
+
+            // Reset `reloadOnRestartBoolean`.
+            reloadOnRestartBoolean = false;
         }
     }
 
@@ -1258,24 +1332,91 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 return true;
 
             case R.id.clear_cookies:
-                if (Build.VERSION.SDK_INT < 21) {
-                    cookieManager.removeAllCookie();
-                } else {
-                    cookieManager.removeAllCookies(null);
-                }
-                Snackbar.make(findViewById(R.id.main_webview), R.string.cookies_deleted, Snackbar.LENGTH_SHORT).show();
+                Snackbar.make(findViewById(R.id.main_webview), R.string.cookies_deleted, Snackbar.LENGTH_LONG)
+                        .setAction(R.string.undo, new View.OnClickListener() {
+                            @Override
+                            public void onClick(View v) {
+                                // Do nothing because everything will be handled by `onDismissed()` below.
+                            }
+                        })
+                        .addCallback(new Snackbar.Callback() {
+                            @Override
+                            public void onDismissed(Snackbar snackbar, int event) {
+                                switch (event) {
+                                    // The user pushed the `Undo` button.
+                                    case Snackbar.Callback.DISMISS_EVENT_ACTION:
+                                        // Do nothing.
+                                        break;
+
+                                    // The `Snackbar` was dismissed without the `Undo` button being pushed.
+                                    default:
+                                        // `cookieManager.removeAllCookie()` varies by SDK.
+                                        if (Build.VERSION.SDK_INT < 21) {
+                                            cookieManager.removeAllCookie();
+                                        } else {
+                                            // `null` indicates no callback.
+                                            cookieManager.removeAllCookies(null);
+                                        }
+                                }
+                            }
+                        })
+                        .show();
                 return true;
 
             case R.id.clear_dom_storage:
-                WebStorage webStorage = WebStorage.getInstance();
-                webStorage.deleteAllData();
-                Snackbar.make(findViewById(R.id.main_webview), R.string.dom_storage_deleted, Snackbar.LENGTH_SHORT).show();
+                Snackbar.make(findViewById(R.id.main_webview), R.string.dom_storage_deleted, Snackbar.LENGTH_LONG)
+                        .setAction(R.string.undo, new View.OnClickListener() {
+                            @Override
+                            public void onClick(View v) {
+                                // Do nothing because everything will be handled by `onDismissed()` below.
+                            }
+                        })
+                        .addCallback(new Snackbar.Callback() {
+                            @Override
+                            public void onDismissed(Snackbar snackbar, int event) {
+                                switch (event) {
+                                    // The user pushed the `Undo` button.
+                                    case Snackbar.Callback.DISMISS_EVENT_ACTION:
+                                        // Do nothing.
+                                        break;
+
+                                    // The `Snackbar` was dismissed without the `Undo` button being pushed.
+                                    default:
+                                        // Delete the DOM Storage.
+                                        WebStorage webStorage = WebStorage.getInstance();
+                                        webStorage.deleteAllData();
+                                }
+                            }
+                        })
+                        .show();
                 return true;
 
             case R.id.clear_form_data:
-                WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(this);
-                mainWebViewDatabase.clearFormData();
-                Snackbar.make(findViewById(R.id.main_webview), R.string.form_data_deleted, Snackbar.LENGTH_SHORT).show();
+                Snackbar.make(findViewById(R.id.main_webview), R.string.form_data_deleted, Snackbar.LENGTH_LONG)
+                        .setAction(R.string.undo, new View.OnClickListener() {
+                            @Override
+                            public void onClick(View v) {
+                                // Do nothing because everything will be handled by `onDismissed()` below.
+                            }
+                        })
+                        .addCallback(new Snackbar.Callback() {
+                            @Override
+                            public void onDismissed(Snackbar snackbar, int event) {
+                                switch (event) {
+                                    // The user pushed the `Undo` button.
+                                    case Snackbar.Callback.DISMISS_EVENT_ACTION:
+                                        // Do nothing.
+                                        break;
+
+                                    // The `Snackbar` was dismissed without the `Undo` button being pushed.
+                                    default:
+                                        // Delete the form data.
+                                        WebViewDatabase mainWebViewDatabase = WebViewDatabase.getInstance(getApplicationContext());
+                                        mainWebViewDatabase.clearFormData();
+                                }
+                            }
+                        })
+                        .show();
                 return true;
 
             case R.id.font_size_twenty_five_percent:
@@ -1480,30 +1621,83 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 break;
 
             case R.id.clearAndExit:
-                // Clear cookies.  The commands changed slightly in API 21.
-                if (Build.VERSION.SDK_INT >= 21) {
-                    cookieManager.removeAllCookies(null);
-                } else {
-                    cookieManager.removeAllCookie();
+                // Get a handle for `sharedPreferences`.  `this` references the current context.
+                SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
+
+                boolean clearEverything = sharedPreferences.getBoolean("clear_everything", true);
+
+                // Clear cookies.
+                if (clearEverything || sharedPreferences.getBoolean("clear_cookies", true)) {
+                    // The command to remove cookies changed slightly in API 21.
+                    if (Build.VERSION.SDK_INT >= 21) {
+                        cookieManager.removeAllCookies(null);
+                    } else {
+                        cookieManager.removeAllCookie();
+                    }
+
+                    // Manually delete the cookies database, as `CookieManager` sometimes will not flush its changes to disk before `System.exit(0)` is run.
+                    try {
+                        // We have to use two commands because `Runtime.exec()` does not like `*`.
+                        privacyBrowserRuntime.exec("rm -f " + privateDataDirectoryString + "/app_webview/Cookies");
+                        privacyBrowserRuntime.exec("rm -f " + privateDataDirectoryString + "/app_webview/Cookies-journal");
+                    } catch (IOException e) {
+                        // Do nothing if an error is thrown.
+                    }
                 }
 
                 // Clear DOM storage.
-                WebStorage domStorage = WebStorage.getInstance();
-                domStorage.deleteAllData();
+                if (clearEverything || sharedPreferences.getBoolean("clear_dom_storage", true)) {
+                    // Ask `WebStorage` to clear the DOM storage.
+                    WebStorage webStorage = WebStorage.getInstance();
+                    webStorage.deleteAllData();
+
+                    // Manually delete the DOM storage directory, as `WebStorage` sometimes will not flush its changes to disk before `System.exit(0)` is run.
+                    try {
+                        // We have to use a `String[]` because the directory contains a space and `Runtime.exec` will not escape the string correctly otherwise.
+                        privacyBrowserRuntime.exec(new String[] {"rm", "-rf", privateDataDirectoryString + "/app_webview/Local Storage/"});
+                    } catch (IOException e) {
+                        // Do nothing if an error is thrown.
+                    }
+                }
 
                 // Clear form data.
-                WebViewDatabase webViewDatabase = WebViewDatabase.getInstance(this);
-                webViewDatabase.clearFormData();
+                if (clearEverything || sharedPreferences.getBoolean("clear_form_data", true)) {
+                    WebViewDatabase webViewDatabase = WebViewDatabase.getInstance(this);
+                    webViewDatabase.clearFormData();
 
-                // Clear the cache.  `true` includes disk files.
-                mainWebView.clearCache(true);
+                    // Manually delete the form data database, as `WebViewDatabase` sometimes will not flush its changes to disk before `System.exit(0)` is run.
+                    try {
+                        // We have to use a `String[]` because the database contains a space and `Runtime.exec` will not escape the string correctly otherwise.
+                        privacyBrowserRuntime.exec(new String[] {"rm", "-f", privateDataDirectoryString + "/app_webview/Web Data"});
+                        privacyBrowserRuntime.exec(new String[] {"rm", "-f", privateDataDirectoryString + "/app_webview/Web Data-journal"});
+                    } catch (IOException e) {
+                        // Do nothing if an error is thrown.
+                    }
+                }
 
-                // Clear the back/forward history.
-                mainWebView.clearHistory();
+                // Clear the cache.
+                if (clearEverything || sharedPreferences.getBoolean("clear_cache", true)) {
+                    // `true` includes disk files.
+                    mainWebView.clearCache(true);
+
+                    // Manually delete the cache directories.
+                    try {
+                        // Delete the main cache directory.
+                        privacyBrowserRuntime.exec("rm -rf " + privateDataDirectoryString + "/cache");
+
+                        // Delete the secondary `Service Worker` cache directory.  We have to use a `String[]` because the directory contains a space and `Runtime.exec` will not escape the string correctly otherwise.
+                        privacyBrowserRuntime.exec(new String[] {"rm", "-rf", privateDataDirectoryString + "/app_webview/Service Worker/"});
+                    } catch (IOException e) {
+                        // Do nothing if an error is thrown.
+                    }
+                }
 
-                // Clear any SSL certificate preferences.
+                // Clear SSL certificate preferences.
                 mainWebView.clearSslPreferences();
 
+                // Clear the back/forward history.
+                mainWebView.clearHistory();
+
                 // Clear `formattedUrlString`.
                 formattedUrlString = null;
 
@@ -1516,15 +1710,14 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 // Destroy the internal state of `mainWebView`.
                 mainWebView.destroy();
 
-                // Manually delete cache folders.
-                try {
-                    // Delete the main `cache` folder.
-                    privacyBrowserRuntime.exec("rm -rf " + privateDataDirectoryString + "/cache");
-
-                    // Delete the `app_webview` folder, which contains an additional `WebView` cache.  See `https://code.google.com/p/android/issues/detail?id=233826&thanks=233826&ts=1486670530`.
-                    privacyBrowserRuntime.exec("rm -rf " + privateDataDirectoryString + "/app_webview");
-                } catch (IOException e) {
-                    // Do nothing if an error is thrown.
+                // Manually delete the `app_webview` folder, which contains the cookies, DOM storage, form data, and `Service Worker` cache.
+                // See `https://code.google.com/p/android/issues/detail?id=233826&thanks=233826&ts=1486670530`.
+                if (clearEverything) {
+                    try {
+                        privacyBrowserRuntime.exec("rm -rf " + privateDataDirectoryString + "/app_webview");
+                    } catch (IOException e) {
+                        // Do nothing if an error is thrown.
+                    }
                 }
 
                 // Close Privacy Browser.  `finishAndRemoveTask` also removes Privacy Browser from the recent app list.
@@ -1537,9 +1730,6 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 // Remove the terminated program from RAM.  The status code is `0`.
                 System.exit(0);
                 break;
-
-            default:
-                break;
         }
 
         // Close the navigation drawer.
@@ -1785,6 +1975,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
             DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(imageUrl));
 
             // Pass cookies to download manager if cookies are enabled.  This is required to download images from websites that require a login.
+            // Code contributed 2017 Hendrik Knackstedt.  Copyright assigned to Soren Stoutner <soren@stoutner.com>.
             if (firstPartyCookiesEnabled) {
                 // Get the cookies for `imageUrl`.
                 String cookies = cookieManager.getCookie(imageUrl);
@@ -1832,6 +2023,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
             DownloadManager.Request downloadRequest = new DownloadManager.Request(Uri.parse(downloadUrl));
 
             // Pass cookies to download manager if cookies are enabled.  This is required to download files from websites that require a login.
+            // Code contributed 2017 Hendrik Knackstedt.  Copyright assigned to Soren Stoutner <soren@stoutner.com>.
             if (firstPartyCookiesEnabled) {
                 // Get the cookies for `downloadUrl`.
                 String cookies = cookieManager.getCookie(downloadUrl);
@@ -2004,11 +2196,11 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
     }
 
     private void applyAppSettings() {
-        // Get the shared preference values.  `this` references the current context.
+        // Get a handle for `sharedPreferences`.  `this` references the current context.
         SharedPreferences sharedPreferences = PreferenceManager.getDefaultSharedPreferences(this);
 
         // Store the values from `sharedPreferences` in variables.
-        String homepageString = sharedPreferences.getString("homepage", "https://duckduckgo.com");
+        String homepageString = sharedPreferences.getString("homepage", "https://start.duckduckgo.com");
         String torHomepageString = sharedPreferences.getString("tor_homepage", "https://3g2upl4pq6kufc4m.onion");
         String torSearchString = sharedPreferences.getString("tor_search", "https://3g2upl4pq6kufc4m.onion/html/?q=");
         String torSearchCustomURLString = sharedPreferences.getString("tor_search_custom_url", "");
@@ -2044,6 +2236,13 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
             // Set the proxy.  `this` refers to the current activity where an `AlertDialog` might be displayed.
             OrbotProxyHelper.setProxy(getApplicationContext(), this, "localhost", "8118");
 
+            // Set the `appBar` background to indicate proxying through Orbot is enabled.  `this` refers to the context.
+            if (darkTheme) {
+                appBar.setBackgroundDrawable(ContextCompat.getDrawable(this, R.color.dark_blue_30));
+            } else {
+                appBar.setBackgroundDrawable(ContextCompat.getDrawable(this, R.color.blue_50));
+            }
+
             // Display a message to the user if we are waiting on Orbot.
             if (!orbotStatus.equals("ON")) {
                 // Set `waitingForOrbot`.
@@ -2071,6 +2270,13 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
             // Reset the proxy to default.  The host is `""` and the port is `"0"`.
             OrbotProxyHelper.setProxy(getApplicationContext(), this, "", "0");
 
+            // Set the default `appBar` background.  `this` refers to the context.
+            if (darkTheme) {
+                appBar.setBackgroundDrawable(ContextCompat.getDrawable(this, R.color.gray_900));
+            } else {
+                appBar.setBackgroundDrawable(ContextCompat.getDrawable(this, R.color.gray_100));
+            }
+
             // Reset `waitingForOrbot.
             waitingForOrbot = false;
         }
@@ -2270,7 +2476,11 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 }
 
                 // Set a green background on `urlTextBox` to indicate that custom domain settings are being used.  We have to use the deprecated `.getDrawable()` until the minimum API >= 21.
-                urlAppBarRelativeLayout.setBackground(getResources().getDrawable(R.drawable.url_bar_background_green));
+                if (darkTheme) {
+                    urlAppBarRelativeLayout.setBackground(getResources().getDrawable(R.drawable.url_bar_background_dark_blue));
+                } else {
+                    urlAppBarRelativeLayout.setBackground(getResources().getDrawable(R.drawable.url_bar_background_light_green));
+                }
             } else {  // The URL we are loading does not have custom domain settings.  Load the defaults.
                 // Store the values from `sharedPreferences` in variables.
                 javaScriptEnabled = sharedPreferences.getBoolean("javascript_enabled", false);
@@ -2313,7 +2523,7 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
                 }
 
                 // Set a transparent background on `urlTextBox`.  We have to use the deprecated `.getDrawable()` until the minimum API >= 21.
-                urlAppBarRelativeLayout.setBackgroundDrawable(getResources().getDrawable(R.drawable.url_bar_background_transparent));
+                urlAppBarRelativeLayout.setBackgroundDrawable(getResources().getDrawable(R.color.transparent));
             }
 
             // Close `domainsDatabaseHelper`.
@@ -2372,23 +2582,39 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
         if (firstPartyCookiesEnabled) {  // First-party cookies are enabled.
             firstPartyCookiesIconMenuItem.setIcon(R.drawable.cookies_enabled);
         } else {  // First-party cookies are disabled.
-            firstPartyCookiesIconMenuItem.setIcon(R.drawable.cookies_disabled);
+            if (darkTheme) {
+                firstPartyCookiesIconMenuItem.setIcon(R.drawable.cookies_disabled_dark);
+            } else {
+                firstPartyCookiesIconMenuItem.setIcon(R.drawable.cookies_disabled_light);
+            }
         }
 
         // Update `domStorageIcon`.
         if (javaScriptEnabled && domStorageEnabled) {  // Both JavaScript and DOM storage are enabled.
             domStorageIconMenuItem.setIcon(R.drawable.dom_storage_enabled);
         } else if (javaScriptEnabled) {  // JavaScript is enabled but DOM storage is disabled.
-            domStorageIconMenuItem.setIcon(R.drawable.dom_storage_disabled);
+            if (darkTheme) {
+                domStorageIconMenuItem.setIcon(R.drawable.dom_storage_disabled_dark);
+            } else {
+                domStorageIconMenuItem.setIcon(R.drawable.dom_storage_disabled_light);
+            }
         } else {  // JavaScript is disabled, so DOM storage is ghosted.
-            domStorageIconMenuItem.setIcon(R.drawable.dom_storage_ghosted);
+            if (darkTheme) {
+                domStorageIconMenuItem.setIcon(R.drawable.dom_storage_ghosted_dark);
+            } else {
+                domStorageIconMenuItem.setIcon(R.drawable.dom_storage_ghosted_light);
+            }
         }
 
         // Update `formDataIcon`.
         if (saveFormDataEnabled) {  // Form data is enabled.
             formDataIconMenuItem.setIcon(R.drawable.form_data_enabled);
         } else {  // Form data is disabled.
-            formDataIconMenuItem.setIcon(R.drawable.form_data_disabled);
+            if (darkTheme) {
+                formDataIconMenuItem.setIcon(R.drawable.form_data_disabled_dark);
+            } else {
+                formDataIconMenuItem.setIcon(R.drawable.form_data_disabled_light);
+            }
         }
 
         // `invalidateOptionsMenu` calls `onPrepareOptionsMenu()` and redraws the icons in the `AppBar`.  `this` references the current activity.
@@ -2396,4 +2622,23 @@ public class MainWebViewActivity extends AppCompatActivity implements Navigation
             ActivityCompat.invalidateOptionsMenu(this);
         }
     }
+
+    private void highlightUrlText() {
+        String urlString = urlTextBox.getText().toString();
+
+        if (urlString.startsWith("http://")) {  // Highlight connections that are not encrypted.
+            urlTextBox.getText().setSpan(redColorSpan, 0, 7, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+            urlTextBox.getText().setSpan(boldStyleSpan, 0, 7, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+        } else if (urlString.startsWith("https://")) {  // Highlight connections that are encrypted.
+            urlTextBox.getText().setSpan(initialGrayColorSpan, 0, 8, Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+        }
+
+        // Get the index of the `/` immediately after the domain name.
+        int endOfDomainName = urlString.indexOf("/", (urlString.indexOf("//") + 2));
+
+        // De-emphasize the text after the domain name.
+        if (endOfDomainName > 0) {
+            urlTextBox.getText().setSpan(finalGrayColorSpan, endOfDomainName, urlString.length(), Spanned.SPAN_INCLUSIVE_INCLUSIVE);
+        }
+    }
 }