app/src/main/java/com/stoutner/privacybrowser/activities/DomainsActivity.java

   1 /*
   2  * Copyright © 2017-2018 Soren Stoutner <soren@stoutner.com>.
   3  *
   4  * This file is part of Privacy Browser <https://www.stoutner.com/privacy-browser>.
   5  *
   6  * Privacy Browser is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Privacy Browser is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with Privacy Browser.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 package com.stoutner.privacybrowser.activities;
  21
  22 import android.content.Context;
  23 import android.content.Intent;
  24 import android.database.Cursor;
  25 import android.net.http.SslCertificate;
  26 import android.os.Bundle;
  27 import android.os.Handler;
  28 import android.support.design.widget.FloatingActionButton;
  29 import android.support.design.widget.Snackbar;
  30 import android.support.v4.app.FragmentManager;
  31 import android.support.v4.app.NavUtils;
  32 import android.support.v7.app.ActionBar;
  33 import android.support.v7.app.AppCompatActivity;
  34 // `AppCompatDialogFragment` is required instead of `DialogFragment` or an error is produced on API <=22.
  35 import android.support.v7.app.AppCompatDialogFragment;
  36 import android.support.v7.widget.Toolbar;
  37 import android.view.Menu;
  38 import android.view.MenuItem;
  39 import android.view.View;
  40 import android.view.ViewGroup;
  41 import android.widget.CursorAdapter;
  42 import android.widget.EditText;
  43 import android.widget.ListView;
  44 import android.widget.RadioButton;
  45 import android.widget.Spinner;
  46 import android.widget.Switch;
  47 import android.widget.TextView;
  48
  49 import com.stoutner.privacybrowser.R;
  50 import com.stoutner.privacybrowser.dialogs.AddDomainDialog;
  51 import com.stoutner.privacybrowser.fragments.DomainSettingsFragment;
  52 import com.stoutner.privacybrowser.fragments.DomainsListFragment;
  53 import com.stoutner.privacybrowser.helpers.DomainsDatabaseHelper;
  54
  55 public class DomainsActivity extends AppCompatActivity implements AddDomainDialog.AddDomainListener {
  56     // `twoPanedMode` is public static so it can be accessed from `DomainsListFragment`.  It is also used in `onCreate()`, `onCreateOptionsMenu()`, and `populateDomainsListView()`.
  57     public static boolean twoPanedMode;
  58
  59     // `databaseId` is public static so it can be accessed from `DomainsListFragment`.  It is also used in `onCreateOptionsMenu()`, `saveDomainSettings()` and `populateDomainsListView()`.
  60     public static int currentDomainDatabaseId;
  61
  62     // `deleteMenuItem` is public static so it can be accessed from `DomainsListFragment`.  It is also used in `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `onBackPressed()`.
  63     public static MenuItem deleteMenuItem;
  64
  65     // `undoDeleteSnackbar` is public static so it can be accessed from `DomainsListFragment`.  It is also used in `onOptionsItemSelected()` and `onBackPressed()`.
  66     public static Snackbar undoDeleteSnackbar;
  67
  68     // `dismissingSnackbar` is public static so it can be accessed from `DomainsListFragment`.  It is also used in `onOptionsItemSelected()`.
  69     public static boolean dismissingSnackbar;
  70
  71     // `context` is used in `onCreate()`, `onOptionsItemSelected()`, and `onAddDomain()`.
  72     private Context context;
  73
  74     // `supportFragmentManager` is used in `onCreate()` and `onCreateOptionsMenu()`.
  75     private FragmentManager supportFragmentManager;
  76
  77     // `domainsDatabaseHelper` is used in `onCreate()` and `saveDomainSettings()`.
  78     private static DomainsDatabaseHelper domainsDatabaseHelper;
  79
  80     // `domainsListView` is used in `onCreate()` and `populateDomainsList()`.
  81     private ListView domainsListView;
  82
  83     // `addDomainFAB` is used in `onCreate()`, `onCreateOptionsMenu()`, `onOptionsItemSelected()`, and `onBackPressed()`.
  84     private FloatingActionButton addDomainFAB;
  85
  86     // `deletedDomainPosition` is used in an inner and outer class in `onOptionsItemSelected()`.
  87     private int deletedDomainPosition;
  88
  89     // `restartAfterRotate` is used in `onCreate()` and `onCreateOptionsMenu()`.
  90     private boolean restartAfterRotate;
  91
  92     // `domainSettingsDisplayedBeforeRotate` is used in `onCreate()` and `onCreateOptionsMenu()`.
  93     private boolean domainSettingsDisplayedBeforeRotate;
  94
  95     // `domainSettingsDatabaseIdBeforeRotate` is used in `onCreate()` and `onCreateOptionsMenu()`.
  96     private int domainSettingsDatabaseIdBeforeRotate;
  97
  98     // `goDirectlyToDatabaseId` is used in `onCreate()` and `onCreateOptionsMenu()`.
  99     int goDirectlyToDatabaseId;
 100
 101     // `closeOnBack` is used in `onCreate()`, `onOptionsItemSelected()` and `onBackPressed()`.
 102     boolean closeOnBack;
 103
 104     @Override
 105     protected void onCreate(Bundle savedInstanceState) {
 106         // Set the activity theme.
 107         if (MainWebViewActivity.darkTheme) {
 108             setTheme(R.style.PrivacyBrowserDark_SecondaryActivity);
 109         } else {
 110             setTheme(R.style.PrivacyBrowserLight_SecondaryActivity);
 111         }
 112
 113         // Run the default commands.
 114         super.onCreate(savedInstanceState);
 115
 116         // Extract the values from `savedInstanceState` if it is not `null`.
 117         if (savedInstanceState != null) {
 118             restartAfterRotate = true;
 119             domainSettingsDisplayedBeforeRotate = savedInstanceState.getBoolean("domainSettingsDisplayed");
 120             domainSettingsDatabaseIdBeforeRotate = savedInstanceState.getInt("domainSettingsDatabaseId");
 121         }
 122
 123         // Get the launching intent
 124         Intent intent = getIntent();
 125
 126         // Extract the domain to load if there is one.  `-1` is the default value.
 127         goDirectlyToDatabaseId = intent.getIntExtra("loadDomain", -1);
 128
 129         // Get the status of close-on-back, which is true when the domains activity is called from the options menu.
 130         closeOnBack = intent.getBooleanExtra("closeOnBack", false);
 131
 132         // Set the content view.
 133         setContentView(R.layout.domains_coordinatorlayout);
 134
 135         // Get a handle for the context.
 136         context = this;
 137
 138         // Get a handle for the fragment manager.
 139         supportFragmentManager = getSupportFragmentManager();
 140
 141         // `SupportActionBar` from `android.support.v7.app.ActionBar` must be used until the minimum API is >= 21.
 142         final Toolbar domainsAppBar = findViewById(R.id.domains_toolbar);
 143         setSupportActionBar(domainsAppBar);
 144
 145         // Display the home arrow on `SupportActionBar`.
 146         ActionBar appBar = getSupportActionBar();
 147         assert appBar != null;// This assert removes the incorrect warning in Android Studio on the following line that `appBar` might be null.
 148         appBar.setDisplayHomeAsUpEnabled(true);
 149
 150         // Initialize the database handler.  The two `nulls` do not specify the database name or a `CursorFactory`.  The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
 151         domainsDatabaseHelper = new DomainsDatabaseHelper(context, null, null, 0);
 152
 153         // Determine if we are in two pane mode.  `domain_settings_fragment_container` does not exist on devices with a width less than 900dp.
 154         twoPanedMode = (findViewById(R.id.domain_settings_fragment_container) != null);
 155
 156         // Configure `addDomainFAB`.
 157         addDomainFAB = findViewById(R.id.add_domain_fab);
 158         addDomainFAB.setOnClickListener((View view) -> {
 159             // Show the add domain `AlertDialog`.
 160             AppCompatDialogFragment addDomainDialog = new AddDomainDialog();
 161             addDomainDialog.show(supportFragmentManager, getResources().getString(R.string.add_domain));
 162         });
 163     }
 164
 165     @Override
 166     public boolean onCreateOptionsMenu(Menu menu) {
 167         // Inflate the menu.
 168         getMenuInflater().inflate(R.menu.domains_options_menu, menu);
 169
 170         // Store `deleteMenuItem` for future use.
 171         deleteMenuItem = menu.findItem(R.id.delete_domain);
 172
 173         // Only display `deleteMenuItem` (initially) in two-paned mode.
 174         deleteMenuItem.setVisible(twoPanedMode);
 175
 176         // Display the fragments.  This must be done from `onCreateOptionsMenu()` instead of `onCreate()` because `populateDomainsListView()` needs `deleteMenuItem` to be inflated.
 177         if (restartAfterRotate && domainSettingsDisplayedBeforeRotate) {  // The device was rotated and domain settings were displayed previously.
 178             if (twoPanedMode) {  // The device is in two-paned mode.
 179                 // Reset `restartAfterRotate`.
 180                 restartAfterRotate = false;
 181
 182                 // Display `DomainsListFragment`.
 183                 DomainsListFragment domainsListFragment = new DomainsListFragment();
 184                 supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainsListFragment).commit();
 185                 supportFragmentManager.executePendingTransactions();
 186
 187                 // Populate the list of domains.  `domainSettingsDatabaseId` highlights the domain that was highlighted before the rotation.
 188                 populateDomainsListView(domainSettingsDatabaseIdBeforeRotate);
 189             } else {  // The device is in single-paned mode.
 190                 // Reset `restartAfterRotate`.
 191                 restartAfterRotate = false;
 192
 193                 // Store the current domain database ID.
 194                 currentDomainDatabaseId = domainSettingsDatabaseIdBeforeRotate;
 195
 196                 // Add `currentDomainDatabaseId` to `argumentsBundle`.
 197                 Bundle argumentsBundle = new Bundle();
 198                 argumentsBundle.putInt(DomainSettingsFragment.DATABASE_ID, currentDomainDatabaseId);
 199
 200                 // Add `argumentsBundle` to `domainSettingsFragment`.
 201                 DomainSettingsFragment domainSettingsFragment = new DomainSettingsFragment();
 202                 domainSettingsFragment.setArguments(argumentsBundle);
 203
 204                 // Show `deleteMenuItem`.
 205                 deleteMenuItem.setVisible(true);
 206
 207                 // Hide `add_domain_fab`.
 208                 addDomainFAB.setVisibility(View.GONE);
 209
 210                 // Display `domainSettingsFragment`.
 211                 supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainSettingsFragment).commit();
 212             }
 213         } else {  // The device was not rotated or, if it was, domain settings were not displayed previously.
 214             if (goDirectlyToDatabaseId >=0) {  // Load the indicated domain settings.
 215                 // Store the current domain database ID.
 216                 currentDomainDatabaseId = goDirectlyToDatabaseId;
 217
 218                 if (twoPanedMode) {  // The device is in two-paned mode.
 219                     // Display `DomainsListFragment`.
 220                     DomainsListFragment domainsListFragment = new DomainsListFragment();
 221                     supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainsListFragment).commit();
 222                     supportFragmentManager.executePendingTransactions();
 223
 224                     // Populate the list of domains.  `domainSettingsDatabaseId` highlights the domain that was highlighted before the rotation.
 225                     populateDomainsListView(goDirectlyToDatabaseId);
 226                 } else {  // The device is in single-paned mode.
 227                     // Add the domain ID to be loaded to `argumentsBundle`.
 228                     Bundle argumentsBundle = new Bundle();
 229                     argumentsBundle.putInt(DomainSettingsFragment.DATABASE_ID, goDirectlyToDatabaseId);
 230
 231                     // Add `argumentsBundle` to `domainSettingsFragment`.
 232                     DomainSettingsFragment domainSettingsFragment = new DomainSettingsFragment();
 233                     domainSettingsFragment.setArguments(argumentsBundle);
 234
 235                     // Show `deleteMenuItem`.
 236                     deleteMenuItem.setVisible(true);
 237
 238                     // Hide `add_domain_fab`.
 239                     addDomainFAB.setVisibility(View.GONE);
 240
 241                     // Display `domainSettingsFragment`.
 242                     supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainSettingsFragment).commit();
 243                 }
 244             } else {  // Highlight the first domain.
 245                 // Display `DomainsListFragment`.
 246                 DomainsListFragment domainsListFragment = new DomainsListFragment();
 247                 supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainsListFragment).commit();
 248                 supportFragmentManager.executePendingTransactions();
 249
 250                 // Populate the list of domains.  `-1` highlights the first domain.
 251                 populateDomainsListView(-1);
 252             }
 253         }
 254
 255         // Success!
 256         return true;
 257     }
 258
 259     @Override
 260     public boolean onOptionsItemSelected(MenuItem menuItem) {
 261         // Get the ID of the `MenuItem` that was selected.
 262         int menuItemID = menuItem.getItemId();
 263
 264         switch (menuItemID) {
 265             case android.R.id.home:  // The home arrow is identified as `android.R.id.home`, not just `R.id.home`.
 266                 if (twoPanedMode) {  // The device is in two-paned mode.
 267                     // Save the current domain settings if the domain settings fragment is displayed.
 268                     if (findViewById(R.id.domain_settings_scrollview) != null) {
 269                         saveDomainSettings();
 270                     }
 271
 272                     // Dismiss the undo delete `SnackBar` if it is shown.
 273                     if (undoDeleteSnackbar != null && undoDeleteSnackbar.isShown()) {
 274                         undoDeleteSnackbar.dismiss();
 275
 276                         // Create a `Runnable` to return to the main activity.
 277                         Runnable navigateHomeRunnable = () -> {
 278                             // Go home.
 279                             NavUtils.navigateUpFromSameTask(this);
 280                         };
 281
 282                         // Navigate home after 300 milliseconds to make sure that the previous domain has been deleted from the database.
 283                         Handler handler = new Handler();
 284                         handler.postDelayed(navigateHomeRunnable, 300);
 285                     } else {
 286                         // Go home.
 287                         NavUtils.navigateUpFromSameTask(this);
 288                     }
 289                 } else if (closeOnBack) {  // Go directly back to the main WebView activity because the domains activity was launched from the options menu.
 290                     // Save the current domain settings.
 291                     saveDomainSettings();
 292
 293                     // Go home.
 294                     NavUtils.navigateUpFromSameTask(this);
 295                 } else if (findViewById(R.id.domain_settings_scrollview) != null) {  // The device is in single-paned mode and the domain settings fragment is displayed.
 296                     // Save the current domain settings.
 297                     saveDomainSettings();
 298
 299                     // Display the domains list fragment.
 300                     DomainsListFragment domainsListFragment = new DomainsListFragment();
 301                     supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainsListFragment).commit();
 302                     supportFragmentManager.executePendingTransactions();
 303
 304                     // Populate the list of domains.  `-1` highlights the first domain if in two-paned mode.  It has no effect in single-paned mode.
 305                     populateDomainsListView(-1);
 306
 307                     // Display the add domain FAB.
 308                     addDomainFAB.setVisibility(View.VISIBLE);
 309
 310                     // Hide the delete menu item.
 311                     deleteMenuItem.setVisible(false);
 312                 } else {  // The device is in single-paned mode and `DomainsListFragment` is displayed.
 313                     // Dismiss the undo delete `SnackBar` if it is shown.
 314                     if (undoDeleteSnackbar != null && undoDeleteSnackbar.isShown()) {
 315                         undoDeleteSnackbar.dismiss();
 316
 317                         // Create a `Runnable` to return to the main activity.
 318                         Runnable navigateHomeRunnable = () -> {
 319                             // Go home.
 320                             NavUtils.navigateUpFromSameTask(this);
 321                         };
 322
 323                         // Navigate home after 300 milliseconds to make sure that the previous domain has been deleted from the database.
 324                         Handler handler = new Handler();
 325                         handler.postDelayed(navigateHomeRunnable, 300);
 326                     } else {
 327                         // Go home.
 328                         NavUtils.navigateUpFromSameTask(this);
 329                     }
 330                 }
 331                 break;
 332
 333             case R.id.delete_domain:
 334                 // Reset close-on-back, which otherwise can cause errors if the system attempts to save settings for a domain that no longer exists.
 335                 closeOnBack = false;
 336
 337                 // Store a copy of `currentDomainDatabaseId` because it could change while the `Snackbar` is displayed.
 338                 final int databaseIdToDelete = currentDomainDatabaseId;
 339
 340                 // Update the fragments and menu items.
 341                 if (twoPanedMode) {  // Two-paned mode.
 342                     // Store the deleted domain position, which is needed if `Undo` is selected in the `Snackbar`.
 343                     deletedDomainPosition = domainsListView.getCheckedItemPosition();
 344
 345                     // Disable the options `MenuItems`.
 346                     deleteMenuItem.setEnabled(false);
 347                     deleteMenuItem.setIcon(R.drawable.delete_blue);
 348
 349                     // Remove the domain settings fragment.
 350                     supportFragmentManager.beginTransaction().remove(supportFragmentManager.findFragmentById(R.id.domain_settings_fragment_container)).commit();
 351                 } else {  // Single-paned mode.
 352                     // Display `DomainsListFragment`.
 353                     DomainsListFragment domainsListFragment = new DomainsListFragment();
 354                     supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainsListFragment).commit();
 355                     supportFragmentManager.executePendingTransactions();
 356
 357                     // Display `addDomainFAB`.
 358                     addDomainFAB.setVisibility(View.VISIBLE);
 359
 360                     // Hide `deleteMenuItem`.
 361                     deleteMenuItem.setVisible(false);
 362                 }
 363
 364                 // Get a `Cursor` that does not show the domain to be deleted.
 365                 Cursor domainsPendingDeleteCursor = domainsDatabaseHelper.getDomainNameCursorOrderedByDomainExcept(databaseIdToDelete);
 366
 367                 // Setup `domainsPendingDeleteCursorAdapter` with `this` context.  `false` disables `autoRequery`.
 368                 CursorAdapter domainsPendingDeleteCursorAdapter = new CursorAdapter(this, domainsPendingDeleteCursor, false) {
 369                     @Override
 370                     public View newView(Context context, Cursor cursor, ViewGroup parent) {
 371                         // Inflate the individual item layout.  `false` does not attach it to the root.
 372                         return getLayoutInflater().inflate(R.layout.domain_name_linearlayout, parent, false);
 373                     }
 374
 375                     @Override
 376                     public void bindView(View view, Context context, Cursor cursor) {
 377                         // Set the domain name.
 378                         String domainNameString = cursor.getString(cursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME));
 379                         TextView domainNameTextView = view.findViewById(R.id.domain_name_textview);
 380                         domainNameTextView.setText(domainNameString);
 381                     }
 382                 };
 383
 384                 // Update the handle for the current `domains_listview`.
 385                 domainsListView = findViewById(R.id.domains_listview);
 386
 387                 // Update the `ListView`.
 388                 domainsListView.setAdapter(domainsPendingDeleteCursorAdapter);
 389
 390                 // Display a `Snackbar`.
 391                 undoDeleteSnackbar = Snackbar.make(domainsListView, R.string.domain_deleted, Snackbar.LENGTH_LONG)
 392                         .setAction(R.string.undo, (View v) -> {
 393                             // Do nothing because everything will be handled by `onDismissed()` below.
 394                         })
 395                         .addCallback(new Snackbar.Callback() {
 396                             @Override
 397                             public void onDismissed(Snackbar snackbar, int event) {
 398                                 switch (event) {
 399                                     // The user pushed the `Undo` button.
 400                                     case Snackbar.Callback.DISMISS_EVENT_ACTION:
 401                                         // Store `databaseId` in `argumentsBundle`.
 402                                         Bundle argumentsBundle = new Bundle();
 403                                         argumentsBundle.putInt(DomainSettingsFragment.DATABASE_ID, databaseIdToDelete);
 404
 405                                         // Add `argumentsBundle` to `domainSettingsFragment`.
 406                                         DomainSettingsFragment domainSettingsFragment = new DomainSettingsFragment();
 407                                         domainSettingsFragment.setArguments(argumentsBundle);
 408
 409                                         // Display the correct fragments.
 410                                         if (twoPanedMode) {  // The device in in two-paned mode.
 411                                             // Get a `Cursor` with the current contents of the domains database.
 412                                             Cursor undoDeleteDomainsCursor = domainsDatabaseHelper.getDomainNameCursorOrderedByDomain();
 413
 414                                             // Setup `domainsCursorAdapter` with `this` context.  `false` disables `autoRequery`.
 415                                             CursorAdapter undoDeleteDomainsCursorAdapter = new CursorAdapter(context, undoDeleteDomainsCursor, false) {
 416                                                 @Override
 417                                                 public View newView(Context context, Cursor cursor, ViewGroup parent) {
 418                                                     // Inflate the individual item layout.  `false` does not attach it to the root.
 419                                                     return getLayoutInflater().inflate(R.layout.domain_name_linearlayout, parent, false);
 420                                                 }
 421
 422                                                 @Override
 423                                                 public void bindView(View view, Context context, Cursor cursor) {
 424                                                     // Set the domain name.
 425                                                     String domainNameString = cursor.getString(cursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME));
 426                                                     TextView domainNameTextView = view.findViewById(R.id.domain_name_textview);
 427                                                     domainNameTextView.setText(domainNameString);
 428                                                 }
 429                                             };
 430
 431                                             // Update the `ListView`.
 432                                             domainsListView.setAdapter(undoDeleteDomainsCursorAdapter);
 433                                             // Select the previously deleted domain in `domainsListView`.
 434                                             domainsListView.setItemChecked(deletedDomainPosition, true);
 435
 436                                             // Display `domainSettingsFragment`.
 437                                             supportFragmentManager.beginTransaction().replace(R.id.domain_settings_fragment_container, domainSettingsFragment).commit();
 438
 439                                             // Enable the options `MenuItems`.
 440                                             deleteMenuItem.setEnabled(true);
 441                                             deleteMenuItem.setIcon(R.drawable.delete_light);
 442                                         } else {  // The device in in one-paned mode.
 443                                             // Display `domainSettingsFragment`.
 444                                             supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainSettingsFragment).commit();
 445
 446                                             // Hide `add_domain_fab`.
 447                                             FloatingActionButton addDomainFAB = findViewById(R.id.add_domain_fab);
 448                                             addDomainFAB.setVisibility(View.GONE);
 449
 450                                             // Show and enable `deleteMenuItem`.
 451                                             deleteMenuItem.setVisible(true);
 452
 453                                             // Display `domainSettingsFragment`.
 454                                             supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainSettingsFragment).commit();
 455                                         }
 456                                         break;
 457
 458                                     // The `Snackbar` was dismissed without the `Undo` button being pushed.
 459                                     default:
 460                                         // Delete the selected domain.
 461                                         domainsDatabaseHelper.deleteDomain(databaseIdToDelete);
 462
 463                                         // enable `deleteMenuItem` if the system was waiting for a `Snackbar` to be dismissed.
 464                                         if (dismissingSnackbar) {
 465                                             // Create a `Runnable` to enable the delete menu item.
 466                                             Runnable enableDeleteMenuItemRunnable = () -> {
 467                                                 // Enable `deleteMenuItem` according to the display mode.
 468                                                 if (twoPanedMode) {  // Two-paned mode.
 469                                                     // Enable `deleteMenuItem`.
 470                                                     deleteMenuItem.setEnabled(true);
 471
 472                                                     // Set the delete icon according to the theme.
 473                                                     if (MainWebViewActivity.darkTheme) {
 474                                                         deleteMenuItem.setIcon(R.drawable.delete_dark);
 475                                                     } else {
 476                                                         deleteMenuItem.setIcon(R.drawable.delete_light);
 477                                                     }
 478                                                 } else {  // Single-paned mode.
 479                                                     // Show `deleteMenuItem`.
 480                                                     deleteMenuItem.setVisible(true);
 481                                                 }
 482
 483                                                 // Reset `dismissingSnackbar`.
 484                                                 dismissingSnackbar = false;
 485                                             };
 486
 487                                             // Run `enableDeleteMenuItemRunnable` after 100 milliseconds to make sure that the previous domain has been deleted from the database.
 488                                             Handler handler = new Handler();
 489                                             handler.postDelayed(enableDeleteMenuItemRunnable, 100);
 490                                         }
 491                                         break;
 492                                 }
 493                             }
 494                         });
 495                 undoDeleteSnackbar.show();
 496                 break;
 497         }
 498
 499         // Consume the event.
 500         return true;
 501     }
 502
 503     @Override
 504     protected void onSaveInstanceState(Bundle outState) {
 505         // Store the current `DomainSettingsFragment` state in `outState`.
 506         if (findViewById(R.id.domain_settings_scrollview) != null) {  // `DomainSettingsFragment` is displayed.
 507             // Save any changes that have been made to the domain settings.
 508             saveDomainSettings();
 509
 510             // Store `DomainSettingsDisplayed`.
 511             outState.putBoolean("domainSettingsDisplayed", true);
 512             outState.putInt("domainSettingsDatabaseId", DomainSettingsFragment.databaseId);
 513         } else {  // `DomainSettingsFragment` is not displayed.
 514             outState.putBoolean("domainSettingsDisplayed", false);
 515             outState.putInt("domainSettingsDatabaseId", -1);
 516         }
 517
 518         super.onSaveInstanceState(outState);
 519     }
 520
 521     // Control what the navigation bar back button does.
 522     @Override
 523     public void onBackPressed() {
 524         if (twoPanedMode) {  // The device is in two-paned mode.
 525             // Save the current domain settings if the domain settings fragment is displayed.
 526             if (findViewById(R.id.domain_settings_scrollview) != null) {
 527                 saveDomainSettings();
 528             }
 529
 530             // Dismiss the undo delete SnackBar if it is shown.
 531             if (undoDeleteSnackbar != null && undoDeleteSnackbar.isShown()) {
 532                 undoDeleteSnackbar.dismiss();
 533
 534                 // Create a runnable to return to the main activity.
 535                 Runnable navigateHomeRunnable = super::onBackPressed;
 536
 537                 // Navigate home after 300 milliseconds to make sure that the previous domain has been deleted from the database.
 538                 Handler handler = new Handler();
 539                 handler.postDelayed(navigateHomeRunnable, 300);
 540             } else {
 541                 // Pass `onBackPressed()` to the system.
 542                 super.onBackPressed();
 543             }
 544         } else if (closeOnBack) {  // Go directly back to the main WebView activity because the domains activity was launched from the options menu.
 545             // Save the current domain settings.
 546             saveDomainSettings();
 547
 548             // Pass `onBackPressed()` to the system.
 549             super.onBackPressed();
 550         } else if (findViewById(R.id.domain_settings_scrollview) != null) {  // The device is in single-paned mode and domain settings fragment is displayed.
 551             // Save the current domain settings.
 552             saveDomainSettings();
 553
 554             // Display the domains list fragment.
 555             DomainsListFragment domainsListFragment = new DomainsListFragment();
 556             supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainsListFragment).commit();
 557             supportFragmentManager.executePendingTransactions();
 558
 559             // Populate the list of domains.  `-1` highlights the first domain if in two-paned mode.  It has no effect in single-paned mode.
 560             populateDomainsListView(-1);
 561
 562             // Display the add domain FAB.
 563             addDomainFAB.setVisibility(View.VISIBLE);
 564
 565             // Hide the delete menu item.
 566             deleteMenuItem.setVisible(false);
 567         } else {  // The device is in single-paned mode and the domain list fragment is displayed.
 568             // Dismiss the undo delete SnackBar if it is shown.
 569             if (undoDeleteSnackbar != null && undoDeleteSnackbar.isShown()) {
 570                 undoDeleteSnackbar.dismiss();
 571
 572                 // Create a runnable to return to the main activity.
 573                 Runnable navigateHomeRunnable = super::onBackPressed;
 574
 575                 // Navigate home after 300 milliseconds to make sure that the previous domain has been deleted from the database.
 576                 Handler handler = new Handler();
 577                 handler.postDelayed(navigateHomeRunnable, 300);
 578             } else {
 579                 // Pass `onBackPressed()` to the system.
 580                 super.onBackPressed();
 581             }
 582         }
 583     }
 584
 585     @Override
 586     public void onAddDomain(AppCompatDialogFragment dialogFragment) {
 587         // Dismiss the undo delete snackbar if it is currently displayed.
 588         if ((undoDeleteSnackbar != null) && (undoDeleteSnackbar.isShown())) {
 589             undoDeleteSnackbar.dismiss();
 590         }
 591
 592         // Get the new domain name String from the dialog fragment.
 593         EditText domainNameEditText = dialogFragment.getDialog().findViewById(R.id.domain_name_edittext);
 594         String domainNameString = domainNameEditText.getText().toString();
 595
 596         // Create the domain and store the database ID in `currentDomainDatabaseId`.
 597         currentDomainDatabaseId = domainsDatabaseHelper.addDomain(domainNameString);
 598
 599         // Display the newly created domain.
 600         if (twoPanedMode) {  // The device in in two-paned mode.
 601             populateDomainsListView(currentDomainDatabaseId);
 602         } else {  // The device is in single-paned mode.
 603             // Hide `add_domain_fab`.
 604             addDomainFAB.setVisibility(View.GONE);
 605
 606             // Show and enable `deleteMenuItem`.
 607             DomainsActivity.deleteMenuItem.setVisible(true);
 608
 609             // Add `currentDomainDatabaseId` to `argumentsBundle`.
 610             Bundle argumentsBundle = new Bundle();
 611             argumentsBundle.putInt(DomainSettingsFragment.DATABASE_ID, currentDomainDatabaseId);
 612
 613             // Add `argumentsBundle` to `domainSettingsFragment`.
 614             DomainSettingsFragment domainSettingsFragment = new DomainSettingsFragment();
 615             domainSettingsFragment.setArguments(argumentsBundle);
 616
 617             // Display `domainSettingsFragment`.
 618             supportFragmentManager.beginTransaction().replace(R.id.domains_listview_fragment_container, domainSettingsFragment).commit();
 619         }
 620     }
 621
 622     private void saveDomainSettings() {
 623         // Get handles for the domain settings.
 624         EditText domainNameEditText = findViewById(R.id.domain_settings_name_edittext);
 625         Switch javaScriptSwitch = findViewById(R.id.domain_settings_javascript_switch);
 626         Switch firstPartyCookiesSwitch = findViewById(R.id.domain_settings_first_party_cookies_switch);
 627         Switch thirdPartyCookiesSwitch = findViewById(R.id.domain_settings_third_party_cookies_switch);
 628         Switch domStorageSwitch = findViewById(R.id.domain_settings_dom_storage_switch);
 629         Switch formDataSwitch = findViewById(R.id.domain_settings_form_data_switch);
 630         Switch easyListSwitch = findViewById(R.id.domain_settings_easylist_switch);
 631         Switch easyPrivacySwitch = findViewById(R.id.domain_settings_easyprivacy_switch);
 632         Switch fanboysAnnoyanceSwitch = findViewById(R.id.domain_settings_fanboys_annoyance_list_switch);
 633         Switch fanboysSocialBlockingSwitch = findViewById(R.id.domain_settings_fanboys_social_blocking_list_switch);
 634         Spinner userAgentSpinner = findViewById(R.id.domain_settings_user_agent_spinner);
 635         EditText customUserAgentEditText = findViewById(R.id.domain_settings_custom_user_agent_edittext);
 636         Spinner fontSizeSpinner = findViewById(R.id.domain_settings_font_size_spinner);
 637         Spinner displayWebpageImagesSpinner = findViewById(R.id.domain_settings_display_webpage_images_spinner);
 638         Spinner nightModeSpinner = findViewById(R.id.domain_settings_night_mode_spinner);
 639         Switch pinnedSslCertificateSwitch = findViewById(R.id.domain_settings_pinned_ssl_certificate_switch);
 640         RadioButton savedSslCertificateRadioButton = findViewById(R.id.saved_ssl_certificate_radiobutton);
 641         RadioButton currentWebsiteCertificateRadioButton = findViewById(R.id.current_website_certificate_radiobutton);
 642
 643         // Extract the data for the domain settings.
 644         String domainNameString = domainNameEditText.getText().toString();
 645         boolean javaScriptEnabled = javaScriptSwitch.isChecked();
 646         boolean firstPartyCookiesEnabled = firstPartyCookiesSwitch.isChecked();
 647         boolean thirdPartyCookiesEnabled = thirdPartyCookiesSwitch.isChecked();
 648         boolean domStorageEnabled  = domStorageSwitch.isChecked();
 649         boolean formDataEnabled = formDataSwitch.isChecked();
 650         boolean easyListEnabled = easyListSwitch.isChecked();
 651         boolean easyPrivacyEnabled = easyPrivacySwitch.isChecked();
 652         boolean fanboysAnnoyanceEnabled = fanboysAnnoyanceSwitch.isChecked();
 653         boolean fanboysSocialBlockingEnabled = fanboysSocialBlockingSwitch.isChecked();
 654         int userAgentPositionInt = userAgentSpinner.getSelectedItemPosition();
 655         int fontSizePositionInt = fontSizeSpinner.getSelectedItemPosition();
 656         int displayWebpageImagesInt = displayWebpageImagesSpinner.getSelectedItemPosition();
 657         int nightModeInt = nightModeSpinner.getSelectedItemPosition();
 658         boolean pinnedSslCertificate = pinnedSslCertificateSwitch.isChecked();
 659
 660         // Get the data for the `Spinners` from the entry values string arrays.
 661         String userAgentString = getResources().getStringArray(R.array.domain_settings_user_agent_entry_values)[userAgentPositionInt];
 662         int fontSizeInt = Integer.parseInt(getResources().getStringArray(R.array.domain_settings_font_size_entry_values)[fontSizePositionInt]);
 663
 664         // Check to see if we are using a custom user agent.
 665         if (userAgentString.equals("Custom user agent")) {
 666             // Set `userAgentString` to the custom user agent string.
 667             userAgentString = customUserAgentEditText.getText().toString();
 668         }
 669
 670         // Save the domain settings.
 671         if (savedSslCertificateRadioButton.isChecked()) {  // The current certificate is being used.
 672             // Update the database except for the certificate.
 673             domainsDatabaseHelper.updateDomainExceptCertificate(DomainsActivity.currentDomainDatabaseId, domainNameString, javaScriptEnabled, firstPartyCookiesEnabled, thirdPartyCookiesEnabled,
 674                     domStorageEnabled, formDataEnabled, easyListEnabled, easyPrivacyEnabled, fanboysAnnoyanceEnabled, fanboysSocialBlockingEnabled, userAgentString, fontSizeInt, displayWebpageImagesInt,
 675                     nightModeInt, pinnedSslCertificate);
 676         } else if (currentWebsiteCertificateRadioButton.isChecked()) {  // The certificate is being updated with the current website certificate.
 677             // Get the current website SSL certificate.
 678             SslCertificate currentWebsiteSslCertificate = MainWebViewActivity.sslCertificate;
 679
 680             // Store the values from the SSL certificate.
 681             String issuedToCommonName = currentWebsiteSslCertificate.getIssuedTo().getCName();
 682             String issuedToOrganization = currentWebsiteSslCertificate.getIssuedTo().getOName();
 683             String issuedToOrganizationalUnit = currentWebsiteSslCertificate.getIssuedTo().getUName();
 684             String issuedByCommonName = currentWebsiteSslCertificate.getIssuedBy().getCName();
 685             String issuedByOrganization = currentWebsiteSslCertificate.getIssuedBy().getOName();
 686             String issuedByOrganizationalUnit = currentWebsiteSslCertificate.getIssuedBy().getUName();
 687             long startDateLong = currentWebsiteSslCertificate.getValidNotBeforeDate().getTime();
 688             long endDateLong = currentWebsiteSslCertificate.getValidNotAfterDate().getTime();
 689
 690             // Update the database.
 691             domainsDatabaseHelper.updateDomainWithCertificate(currentDomainDatabaseId, domainNameString, javaScriptEnabled, firstPartyCookiesEnabled, thirdPartyCookiesEnabled, domStorageEnabled,
 692                     formDataEnabled, easyListEnabled, easyPrivacyEnabled, fanboysAnnoyanceEnabled, fanboysSocialBlockingEnabled, userAgentString, fontSizeInt, displayWebpageImagesInt, nightModeInt,
 693                     pinnedSslCertificate, issuedToCommonName, issuedToOrganization, issuedToOrganizationalUnit, issuedByCommonName, issuedByOrganization, issuedByOrganizationalUnit, startDateLong, endDateLong);
 694
 695         } else {  // No certificate is selected.
 696             // Update the database, with PINNED_SSL_CERTIFICATE set to false.
 697             domainsDatabaseHelper.updateDomainExceptCertificate(currentDomainDatabaseId, domainNameString, javaScriptEnabled, firstPartyCookiesEnabled, thirdPartyCookiesEnabled, domStorageEnabled,
 698                     formDataEnabled, easyListEnabled, easyPrivacyEnabled, fanboysAnnoyanceEnabled, fanboysSocialBlockingEnabled, userAgentString, fontSizeInt, displayWebpageImagesInt, nightModeInt,
 699                     false);
 700         }
 701     }
 702
 703     private void populateDomainsListView(final int highlightedDomainDatabaseId) {
 704         // get a handle for the current `domains_listview`.
 705         domainsListView = findViewById(R.id.domains_listview);
 706
 707         // Get a `Cursor` with the current contents of the domains database.
 708         Cursor domainsCursor = domainsDatabaseHelper.getDomainNameCursorOrderedByDomain();
 709
 710         // Setup `domainsCursorAdapter` with `this` context.  `false` disables `autoRequery`.
 711         CursorAdapter domainsCursorAdapter = new CursorAdapter(context, domainsCursor, false) {
 712             @Override
 713             public View newView(Context context, Cursor cursor, ViewGroup parent) {
 714                 // Inflate the individual item layout.  `false` does not attach it to the root.
 715                 return getLayoutInflater().inflate(R.layout.domain_name_linearlayout, parent, false);
 716             }
 717
 718             @Override
 719             public void bindView(View view, Context context, Cursor cursor) {
 720                 // Set the domain name.
 721                 String domainNameString = cursor.getString(cursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME));
 722                 TextView domainNameTextView = view.findViewById(R.id.domain_name_textview);
 723                 domainNameTextView.setText(domainNameString);
 724             }
 725         };
 726
 727         // Update the `ListView`.
 728         domainsListView.setAdapter(domainsCursorAdapter);
 729
 730         // Display the domain settings in the second pane if operating in two pane mode and the database contains at least one domain.
 731         if (DomainsActivity.twoPanedMode && (domainsCursor.getCount() > 0)) {  // Two-paned mode is enabled and there is at least one domain.
 732             // Initialize `highlightedDomainPosition`.
 733             int highlightedDomainPosition = 0;
 734
 735             // Get the cursor position for the highlighted domain.
 736             for (int i = 0; i < domainsCursor.getCount(); i++) {
 737                 // Move to position `i` in the cursor.
 738                 domainsCursor.moveToPosition(i);
 739
 740                 // Get the database ID for this position.
 741                 int currentDatabaseId = domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper._ID));
 742
 743                 // Set `highlightedDomainPosition` if the database ID for this matches `highlightedDomainDatabaseId`.
 744                 if (highlightedDomainDatabaseId == currentDatabaseId) {
 745                     highlightedDomainPosition = i;
 746                 }
 747             }
 748
 749             // Select the highlighted domain.
 750             domainsListView.setItemChecked(highlightedDomainPosition, true);
 751
 752             // Get the `databaseId` for the highlighted domain.
 753             domainsCursor.moveToPosition(highlightedDomainPosition);
 754             currentDomainDatabaseId = domainsCursor.getInt(domainsCursor.getColumnIndex(DomainsDatabaseHelper._ID));
 755
 756             // Store `databaseId` in `argumentsBundle`.
 757             Bundle argumentsBundle = new Bundle();
 758             argumentsBundle.putInt(DomainSettingsFragment.DATABASE_ID, currentDomainDatabaseId);
 759
 760             // Add `argumentsBundle` to `domainSettingsFragment`.
 761             DomainSettingsFragment domainSettingsFragment = new DomainSettingsFragment();
 762             domainSettingsFragment.setArguments(argumentsBundle);
 763
 764             // Display `domainSettingsFragment`.
 765             supportFragmentManager.beginTransaction().replace(R.id.domain_settings_fragment_container, domainSettingsFragment).commit();
 766
 767             // Enable the options `MenuItems`.
 768             deleteMenuItem.setEnabled(true);
 769
 770             // Set the delete icon according to the theme.
 771             if (MainWebViewActivity.darkTheme) {
 772                 deleteMenuItem.setIcon(R.drawable.delete_dark);
 773             } else {
 774                 deleteMenuItem.setIcon(R.drawable.delete_light);
 775             }
 776         } else if (twoPanedMode) {  // Two-paned mode is enabled but there are no domains.
 777             // Disable the options `MenuItems`.
 778             deleteMenuItem.setEnabled(false);
 779             deleteMenuItem.setIcon(R.drawable.delete_blue);
 780         }
 781     }
 782 }