app/src/main/java/com/stoutner/privacybrowser/fragments/DomainSettingsFragment.java

   1 /*
   2  * Copyright © 2017 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.fragments;
  21
  22 import android.annotation.SuppressLint;
  23 import android.content.Context;
  24 import android.database.Cursor;
  25 import android.os.Build;
  26 import android.os.Bundle;
  27 // We have to use `android.support.v4.app.Fragment` until minimum API >= 23.  Otherwise we cannot call `getContext()`.
  28 import android.support.v4.app.Fragment;
  29 import android.view.LayoutInflater;
  30 import android.view.View;
  31 import android.view.ViewGroup;
  32 import android.webkit.WebView;
  33 import android.widget.AdapterView;
  34 import android.widget.ArrayAdapter;
  35 import android.widget.CompoundButton;
  36 import android.widget.EditText;
  37 import android.widget.ImageView;
  38 import android.widget.LinearLayout;
  39 import android.widget.Spinner;
  40 import android.widget.Switch;
  41 import android.widget.TextView;
  42
  43 import com.stoutner.privacybrowser.R;
  44 import com.stoutner.privacybrowser.activities.MainWebViewActivity;
  45 import com.stoutner.privacybrowser.helpers.DomainsDatabaseHelper;
  46
  47 public class DomainSettingsFragment extends Fragment {
  48     // `DATABASE_ID` is used by activities calling this fragment.
  49     public static final String DATABASE_ID = "database_id";
  50
  51     // `databaseId` is used in `onCreate()` and `onCreateView()`.
  52     private int databaseId;
  53
  54     @Override
  55     public void onCreate(Bundle savedInstanceState) {
  56         super.onCreate(savedInstanceState);
  57
  58         // Store the database id in `databaseId`.
  59         databaseId = getArguments().getInt(DATABASE_ID);
  60     }
  61
  62     // We have to use the deprecated `getDrawable()` until the minimum API >= 21.
  63     @SuppressWarnings("deprecation")
  64     @Override
  65     public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
  66         // Inflate `domain_settings`.  `false` does not attach it to the root `container`.
  67         View domainSettingsView = inflater.inflate(R.layout.domain_settings, container, false);
  68
  69         // Get a handle for the `Context`.
  70         Context context = getContext();
  71
  72         // Get handles for the views in the fragment.
  73         EditText domainNameEditText = (EditText) domainSettingsView.findViewById(R.id.domain_settings_name_edittext);
  74         Switch javaScriptEnabledSwitch = (Switch) domainSettingsView.findViewById(R.id.domain_settings_javascript_switch);
  75         final ImageView javaScriptImageView = (ImageView) domainSettingsView.findViewById(R.id.domain_settings_javascript_imageview);
  76         Switch firstPartyCookiesEnabledSwitch = (Switch) domainSettingsView.findViewById(R.id.domain_settings_first_party_cookies_switch);
  77         final ImageView firstPartyCookiesImageView = (ImageView) domainSettingsView.findViewById(R.id.domain_settings_first_party_cookies_imageview);
  78         LinearLayout thirdPartyCookiesLinearLayout = (LinearLayout) domainSettingsView.findViewById(R.id.domain_settings_third_party_cookies_linearlayout);
  79         final Switch thirdPartyCookiesEnabledSwitch = (Switch) domainSettingsView.findViewById(R.id.domain_settings_third_party_cookies_switch);
  80         final ImageView thirdPartyCookiesImageView = (ImageView) domainSettingsView.findViewById(R.id.domain_settings_third_party_cookies_imageview);
  81         final Switch domStorageEnabledSwitch = (Switch) domainSettingsView.findViewById(R.id.domain_settings_dom_storage_switch);
  82         final ImageView domStorageImageView = (ImageView) domainSettingsView.findViewById(R.id.domain_settings_dom_storage_imageview);
  83         Switch formDataEnabledSwitch = (Switch) domainSettingsView.findViewById(R.id.domain_settings_form_data_switch);
  84         final ImageView formDataImageView = (ImageView) domainSettingsView.findViewById(R.id.domain_settings_form_data_imageview);
  85         Spinner userAgentSpinner = (Spinner) domainSettingsView.findViewById(R.id.domain_settings_user_agent_spinner);
  86         final TextView userAgentTextView = (TextView) domainSettingsView.findViewById(R.id.domain_settings_user_agent_textview);
  87         final EditText customUserAgentEditText = (EditText) domainSettingsView.findViewById(R.id.domain_settings_custom_user_agent_edittext);
  88         Spinner fontSizeSpinner = (Spinner) domainSettingsView.findViewById(R.id.domain_settings_font_size_spinner);
  89         final ImageView displayWebpageImagesImageView = (ImageView) domainSettingsView.findViewById(R.id.domain_settings_display_webpage_images_imageview);
  90         Spinner displayWebpageImagesSpinner = (Spinner) domainSettingsView.findViewById(R.id.domain_settings_display_webpage_images_spinner);
  91
  92         // Initialize the database handler.  `this` specifies the context.  The two `nulls` do not specify the database name or a `CursorFactory`.
  93         // The `0` specifies the database version, but that is ignored and set instead using a constant in `DomainsDatabaseHelper`.
  94         DomainsDatabaseHelper domainsDatabaseHelper = new DomainsDatabaseHelper(getContext(), null, null, 0);
  95
  96         // Get the database `Cursor` for this ID and move it to the first row.
  97         Cursor domainCursor = domainsDatabaseHelper.getCursorForId(databaseId);
  98         domainCursor.moveToFirst();
  99
 100         // Save the `Cursor` entries as variables.
 101         String domainNameString = domainCursor.getString(domainCursor.getColumnIndex(DomainsDatabaseHelper.DOMAIN_NAME));
 102         int javaScriptEnabledInt = domainCursor.getInt(domainCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_JAVASCRIPT));
 103         int firstPartyCookiesEnabledInt = domainCursor.getInt(domainCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FIRST_PARTY_COOKIES));
 104         int thirdPartyCookiesEnabledInt = domainCursor.getInt(domainCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_THIRD_PARTY_COOKIES));
 105         int domStorageEnabledInt = domainCursor.getInt(domainCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_DOM_STORAGE));
 106         int formDataEnabledInt = domainCursor.getInt(domainCursor.getColumnIndex(DomainsDatabaseHelper.ENABLE_FORM_DATA));
 107         final String currentUserAgentString = domainCursor.getString(domainCursor.getColumnIndex(DomainsDatabaseHelper.USER_AGENT));
 108         int fontSizeInt = domainCursor.getInt(domainCursor.getColumnIndex(DomainsDatabaseHelper.FONT_SIZE));
 109         int displayImagesInt = domainCursor.getInt(domainCursor.getColumnIndex(DomainsDatabaseHelper.DISPLAY_IMAGES));
 110
 111         // Create `ArrayAdapters` for the `Spinners`and their `entry values`.
 112         ArrayAdapter<CharSequence> userAgentArrayAdapter = ArrayAdapter.createFromResource(context, R.array.user_agent_entries, android.R.layout.simple_spinner_item);
 113         final ArrayAdapter<CharSequence> userAgentEntryValuesArrayAdapter = ArrayAdapter.createFromResource(context, R.array.user_agent_entry_values, android.R.layout.simple_spinner_item);
 114         ArrayAdapter<CharSequence> fontSizeArrayAdapter = ArrayAdapter.createFromResource(context, R.array.default_font_size_entries, android.R.layout.simple_spinner_item);
 115         ArrayAdapter<CharSequence> fontSizeEntryValuesArrayAdapter = ArrayAdapter.createFromResource(context, R.array.default_font_size_entry_values, android.R.layout.simple_spinner_item);
 116         final ArrayAdapter<CharSequence> displayImagesArrayAdapter = ArrayAdapter.createFromResource(context, R.array.display_website_images_array, android.R.layout.simple_spinner_item);
 117
 118         // Set the drop down style for the `ArrayAdapters`.
 119         fontSizeArrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
 120         displayImagesArrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
 121
 122         // Some phones running Huawei's customized Android 7.0 don't display a spinner that requires scrolling correctly with the default `simple_spinner_dropdown_item`.  The Huawei P9 Lite is known to be affected.
 123         if (Build.BRAND.equals("HUAWEI") && (Build.VERSION.SDK_INT == 24)) {  // The device is manufactured by Huawei and is running Android 7.0.
 124             // Use a customized `simple_spinner_dropdown_item`.
 125             userAgentArrayAdapter.setDropDownViewResource(R.layout.simple_spinner_dropdown_item_huawei_fix);
 126         } else {  // Use the standard `android.R.layout.simple_spinner_dropdown_item` on all other devices.
 127             userAgentArrayAdapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item);
 128         }
 129
 130         // Set the `ArrayAdapters` for the `Spinners`.
 131         userAgentSpinner.setAdapter(userAgentArrayAdapter);
 132         fontSizeSpinner.setAdapter(fontSizeArrayAdapter);
 133         displayWebpageImagesSpinner.setAdapter(displayImagesArrayAdapter);
 134
 135         // Set the domain name from the the database cursor.
 136         domainNameEditText.setText(domainNameString);
 137
 138         // Set the JavaScript status.
 139         if (javaScriptEnabledInt == 1) {  // JavaScript is enabled.
 140             javaScriptEnabledSwitch.setChecked(true);
 141             javaScriptImageView.setImageDrawable(getResources().getDrawable(R.drawable.javascript_enabled));
 142         } else {  // JavaScript is disabled.
 143             javaScriptEnabledSwitch.setChecked(false);
 144             javaScriptImageView.setImageDrawable(getResources().getDrawable(R.drawable.privacy_mode));
 145         }
 146
 147         // Set the first-party cookies status.  Once minimum API >= 21 we can use a selector as the tint mode instead of specifying different icons.
 148         if (firstPartyCookiesEnabledInt == 1) {  // First-party cookies are enabled.
 149             firstPartyCookiesEnabledSwitch.setChecked(true);
 150             firstPartyCookiesImageView.setImageDrawable(getResources().getDrawable(R.drawable.cookies_enabled));
 151         } else {  // First-party cookies are disabled.
 152             firstPartyCookiesEnabledSwitch.setChecked(false);
 153             firstPartyCookiesImageView.setImageDrawable(getResources().getDrawable(R.drawable.cookies_disabled));
 154         }
 155
 156         // Only display third-party cookies if SDK_INT >= 21.
 157         if (Build.VERSION.SDK_INT >= 21) {  // Third-party cookies can be configured for API >= 21.
 158             // Only enable third-party-cookies if first-party cookies are enabled.
 159             if (firstPartyCookiesEnabledInt == 1) {  // First-party cookies are enabled.
 160                 // Set the third-party cookies status.  Once minimum API >= 21 we can use a selector as the tint mode instead of specifying different icons.
 161                 if (thirdPartyCookiesEnabledInt == 1) {  // Both first-party and third-party cookies are enabled.
 162                     thirdPartyCookiesEnabledSwitch.setChecked(true);
 163                     thirdPartyCookiesImageView.setImageDrawable(getResources().getDrawable(R.drawable.cookies_warning));
 164                 } else {  // First party cookies are enabled but third-party cookies are disabled.
 165                     thirdPartyCookiesEnabledSwitch.setChecked(false);
 166                     thirdPartyCookiesImageView.setImageDrawable(getResources().getDrawable(R.drawable.cookies_disabled));
 167                 }
 168             } else {  // First-party cookies are disabled.
 169                 // Set the status of third-party cookies, but disable it.
 170                 if (thirdPartyCookiesEnabledInt == 1) {  // Third-party cookies are enabled but first-party cookies are disabled.
 171                     thirdPartyCookiesEnabledSwitch.setChecked(true);
 172                     thirdPartyCookiesEnabledSwitch.setEnabled(false);
 173                     thirdPartyCookiesImageView.setImageDrawable(getResources().getDrawable(R.drawable.cookies_ghosted));
 174                 } else {  // Both first party and third-party cookies are disabled.
 175                     thirdPartyCookiesEnabledSwitch.setChecked(false);
 176                     thirdPartyCookiesEnabledSwitch.setEnabled(false);
 177                     thirdPartyCookiesImageView.setImageDrawable(getResources().getDrawable(R.drawable.cookies_ghosted));
 178                 }
 179             }
 180         } else {  // Third-party cookies cannot be configured for API <= 21.
 181             // Hide the `LinearLayout` for third-party cookies.
 182             thirdPartyCookiesLinearLayout.setVisibility(View.GONE);
 183         }
 184
 185         // Only enable DOM storage if JavaScript is enabled.
 186         if (javaScriptEnabledInt == 1) {  // JavaScript is enabled.
 187             // Set the DOM storage status.  Once minimum API >= 21 we can use a selector as the tint mode instead of specifying different icons.
 188             if (domStorageEnabledInt == 1) {  // Both JavaScript and DOM storage are enabled.
 189                 domStorageEnabledSwitch.setChecked(true);
 190                 domStorageImageView.setImageDrawable(getResources().getDrawable(R.drawable.dom_storage_enabled));
 191             } else {  // JavaScript is enabled but DOM storage is disabled.
 192                 domStorageEnabledSwitch.setChecked(false);
 193                 domStorageImageView.setImageDrawable(getResources().getDrawable(R.drawable.dom_storage_disabled));
 194             }
 195         } else {  // JavaScript is disabled.
 196             // Set the checked status of DOM storage.
 197             if (domStorageEnabledInt == 1) {  // DOM storage is enabled but JavaScript is disabled.
 198                 domStorageEnabledSwitch.setChecked(true);
 199             } else {  // Both JavaScript and DOM storage are disabled.
 200                 domStorageEnabledSwitch.setChecked(false);
 201             }
 202
 203             // Disable `domStorageEnabledSwitch` and set the icon to be ghosted.
 204             domStorageEnabledSwitch.setEnabled(false);
 205             domStorageImageView.setImageDrawable(getResources().getDrawable(R.drawable.dom_storage_ghosted));
 206         }
 207
 208         // Set the form data status.  Once minimum API >= 21 we can use a selector as the tint mode instead of specifying different icons.
 209         if (formDataEnabledInt == 1) {  // Form data is enabled.
 210             formDataEnabledSwitch.setChecked(true);
 211             formDataImageView.setImageDrawable(getResources().getDrawable(R.drawable.form_data_enabled));
 212         } else {  // Form data is disabled.
 213             formDataEnabledSwitch.setChecked(false);
 214             formDataImageView.setImageDrawable(getResources().getDrawable(R.drawable.form_data_disabled));
 215         }
 216
 217         // We need to inflated a `WebView` to get the default user agent.
 218         // `@SuppressLint("InflateParams")` removes the warning about using `null` as the `ViewGroup`, which in this case makes sense because we don't want to display `bare_webview` on the screen.  `false` does not attach the view to the root.
 219         @SuppressLint("InflateParams") View bareWebViewLayout = inflater.inflate(R.layout.bare_webview, null, false);
 220         WebView bareWebView = (WebView) bareWebViewLayout.findViewById(R.id.bare_webview);
 221         final String webViewDefaultUserAgentString = bareWebView.getSettings().getUserAgentString();
 222
 223         // Get the position of the user agent in `userAgentEntryValuesArrayAdapter`.
 224         int userAgentArrayPosition = userAgentEntryValuesArrayAdapter.getPosition(currentUserAgentString);
 225
 226         // Set the user agent.
 227         if (userAgentArrayPosition == -1) {  // We are using a custom `userAgentString`.
 228             // Set `userAgentSpinner` to `Custom`.
 229             userAgentSpinner.setSelection(userAgentEntryValuesArrayAdapter.getPosition("Custom user agent"));
 230
 231             // Hide `userAgentTextView`.
 232             userAgentTextView.setVisibility(View.GONE);
 233
 234             // Show `customUserAgentEditText` and set `userAgentString` as the text.
 235             customUserAgentEditText.setVisibility(View.VISIBLE);
 236             customUserAgentEditText.setText(currentUserAgentString);
 237         } else if (currentUserAgentString.equals("WebView default user agent")) {  // We are using the `WebView` default user agent.
 238             // Set the `userAgentSpinner` selection.
 239             userAgentSpinner.setSelection(userAgentArrayPosition);
 240
 241             // Show `userAgentTextView` and set the text.
 242             userAgentTextView.setVisibility(View.VISIBLE);
 243             userAgentTextView.setText(webViewDefaultUserAgentString);
 244
 245             // Hide `customUserAgentEditText`.
 246             customUserAgentEditText.setVisibility(View.GONE);
 247         } else {  // We are using a standard user agent.
 248             // Set the `userAgentSpinner` selection.
 249             userAgentSpinner.setSelection(userAgentArrayPosition);
 250
 251             // Show `userAgentTextView` and set the text.
 252             userAgentTextView.setVisibility(View.VISIBLE);
 253             userAgentTextView.setText(currentUserAgentString);
 254
 255             // Hide `customUserAgentEditText`.
 256             customUserAgentEditText.setVisibility(View.GONE);
 257         }
 258
 259         // Set the selected font size.
 260         int fontSizeArrayPosition = fontSizeEntryValuesArrayAdapter.getPosition(String.valueOf(fontSizeInt));
 261         fontSizeSpinner.setSelection(fontSizeArrayPosition);
 262
 263         // Set the selected display website images mode.
 264         displayWebpageImagesSpinner.setSelection(displayImagesInt);
 265
 266         // Set the display website images icon.
 267         switch (displayImagesInt) {
 268             case DomainsDatabaseHelper.DISPLAY_WEBPAGE_IMAGES_SYSTEM_DEFAULT:
 269                 if (MainWebViewActivity.displayWebpageImagesBoolean) {
 270                     displayWebpageImagesImageView.setImageDrawable(getResources().getDrawable(R.drawable.images_enabled));
 271                 } else {
 272                     displayWebpageImagesImageView.setImageDrawable(getResources().getDrawable(R.drawable.images_disabled));
 273                 }
 274                 break;
 275
 276             case DomainsDatabaseHelper.DISPLAY_WEBPAGE_IMAGES_ENABLED:
 277                 displayWebpageImagesImageView.setImageDrawable(getResources().getDrawable(R.drawable.images_enabled));
 278                 break;
 279
 280             case DomainsDatabaseHelper.DISPLAY_WEBPAGE_IMAGES_DISABLED:
 281                 displayWebpageImagesImageView.setImageDrawable(getResources().getDrawable(R.drawable.images_disabled));
 282                 break;
 283         }
 284
 285
 286         // Set the `javaScriptEnabledSwitch` `OnCheckedChangeListener()`.
 287         javaScriptEnabledSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
 288             @Override
 289             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 290                 if (isChecked) {  // JavaScript is enabled.
 291                     // Update the JavaScript icon.
 292                     javaScriptImageView.setImageDrawable(getResources().getDrawable(R.drawable.javascript_enabled));
 293
 294                     // Enable the DOM storage `Switch`.
 295                     domStorageEnabledSwitch.setEnabled(true);
 296
 297                     // Update the DOM storage icon.
 298                     if (domStorageEnabledSwitch.isChecked()) {  // DOM storage is enabled.
 299                         domStorageImageView.setImageDrawable(getResources().getDrawable(R.drawable.dom_storage_enabled));
 300                     } else {  // DOM storage is disabled.
 301                         domStorageImageView.setImageDrawable(getResources().getDrawable(R.drawable.dom_storage_disabled));
 302                     }
 303                 } else {  // JavaScript is disabled.
 304                     // Update the JavaScript icon.
 305                     javaScriptImageView.setImageDrawable(getResources().getDrawable(R.drawable.privacy_mode));
 306
 307                     // Disable the DOM storage `Switch`.
 308                     domStorageEnabledSwitch.setEnabled(false);
 309
 310                     // Set the DOM storage icon to be ghosted.
 311                     domStorageImageView.setImageDrawable(getResources().getDrawable(R.drawable.dom_storage_ghosted));
 312                 }
 313             }
 314         });
 315
 316         // Set the `firstPartyCookiesEnabledSwitch` `OnCheckedChangeListener()`.
 317         firstPartyCookiesEnabledSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
 318             @Override
 319             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 320                 if (isChecked) {  // First-party cookies are enabled.
 321                     // Update the first-party cookies icon.
 322                     firstPartyCookiesImageView.setImageDrawable(getResources().getDrawable(R.drawable.cookies_enabled));
 323
 324                     // Enable the third-party cookies `Switch`.
 325                     thirdPartyCookiesEnabledSwitch.setEnabled(true);
 326
 327                     // Update the third-party cookies icon.
 328                     if (thirdPartyCookiesEnabledSwitch.isChecked()) {  // Third-party cookies are enabled.
 329                         thirdPartyCookiesImageView.setImageDrawable(getResources().getDrawable(R.drawable.cookies_warning));
 330                     } else {  // Third-party cookies are disabled.
 331                         thirdPartyCookiesImageView.setImageDrawable(getResources().getDrawable(R.drawable.cookies_disabled));
 332                     }
 333                 } else {  // First-party cookies are disabled.
 334                     // Update the first-party cookies icon.
 335                     firstPartyCookiesImageView.setImageDrawable(getResources().getDrawable(R.drawable.cookies_disabled));
 336
 337                     // Disable the third-party cookies `Switch`.
 338                     thirdPartyCookiesEnabledSwitch.setEnabled(false);
 339
 340                     // Set the third-party cookies icon to be ghosted.
 341                     thirdPartyCookiesImageView.setImageDrawable(getResources().getDrawable(R.drawable.cookies_ghosted));
 342                 }
 343             }
 344         });
 345
 346         // Set the `thirdPartyCookiesEnabledSwitch` `OnCheckedChangeListener()`.
 347         thirdPartyCookiesEnabledSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
 348             @Override
 349             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 350                 // Update the icon.
 351                 if (isChecked) {
 352                     thirdPartyCookiesImageView.setImageDrawable(getResources().getDrawable(R.drawable.cookies_warning));
 353                 } else {
 354                     thirdPartyCookiesImageView.setImageDrawable(getResources().getDrawable(R.drawable.cookies_disabled));
 355                 }
 356             }
 357         });
 358
 359         // Set the `domStorageEnabledSwitch` `OnCheckedChangeListener()`.
 360         domStorageEnabledSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
 361             @Override
 362             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 363                 // Update the icon.
 364                 if (isChecked) {
 365                     domStorageImageView.setImageDrawable(getResources().getDrawable(R.drawable.dom_storage_enabled));
 366                 } else {
 367                     domStorageImageView.setImageDrawable(getResources().getDrawable(R.drawable.dom_storage_disabled));
 368                 }
 369             }
 370         });
 371
 372         // Set the `formDataEnabledSwitch` `OnCheckedChangeListener()`.
 373         formDataEnabledSwitch.setOnCheckedChangeListener(new CompoundButton.OnCheckedChangeListener() {
 374             @Override
 375             public void onCheckedChanged(CompoundButton buttonView, boolean isChecked) {
 376                 // Update the icon.
 377                 if (isChecked) {
 378                     formDataImageView.setImageDrawable(getResources().getDrawable(R.drawable.form_data_enabled));
 379                 } else {
 380                     formDataImageView.setImageDrawable(getResources().getDrawable(R.drawable.form_data_disabled));
 381                 }
 382             }
 383         });
 384
 385         // Set the `userAgentSpinner` `onItemClickListener()`.
 386         userAgentSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
 387             @Override
 388             public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
 389                 // Store the new user agent string.
 390                 String newUserAgentString = getResources().getStringArray(R.array.user_agent_entry_values)[position];
 391
 392                 // Set the new user agent.
 393                 switch (newUserAgentString) {
 394                     case "Custom user agent":
 395                         // Hide `userAgentTextView`.
 396                         userAgentTextView.setVisibility(View.GONE);
 397
 398                         // Show `customUserAgentEditText` and set `userAgentString` as the text.
 399                         customUserAgentEditText.setVisibility(View.VISIBLE);
 400                         customUserAgentEditText.setText(currentUserAgentString);
 401                         break;
 402
 403                     case "WebView default user agent":
 404                         // Show `userAgentTextView` and set the text.
 405                         userAgentTextView.setVisibility(View.VISIBLE);
 406                         userAgentTextView.setText(webViewDefaultUserAgentString);
 407
 408                         // Hide `customUserAgentEditText`.
 409                         customUserAgentEditText.setVisibility(View.GONE);
 410                         break;
 411
 412                     default:
 413                         // Show `userAgentTextView` and set the text.
 414                         userAgentTextView.setVisibility(View.VISIBLE);
 415                         userAgentTextView.setText(getResources().getStringArray(R.array.user_agent_entry_values)[position]);
 416
 417                         // Hide `customUserAgentEditText`.
 418                         customUserAgentEditText.setVisibility(View.GONE);
 419                         break;
 420                 }
 421             }
 422
 423             @Override
 424             public void onNothingSelected(AdapterView<?> parent) {
 425                 // Do nothing.
 426             }
 427         });
 428
 429         // Set the `displayImagesSwitch` `onItemClickListener()`.
 430         displayWebpageImagesSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() {
 431             @Override
 432             public void onItemSelected(AdapterView<?> parent, View view, int position, long id) {
 433                 // Update the icon.
 434                 switch (position) {
 435                     case DomainsDatabaseHelper.DISPLAY_WEBPAGE_IMAGES_SYSTEM_DEFAULT:
 436                         if (MainWebViewActivity.displayWebpageImagesBoolean) {
 437                             displayWebpageImagesImageView.setImageDrawable(getResources().getDrawable(R.drawable.images_enabled));
 438                         } else {
 439                             displayWebpageImagesImageView.setImageDrawable(getResources().getDrawable(R.drawable.images_disabled));
 440                         }
 441                         break;
 442
 443                     case DomainsDatabaseHelper.DISPLAY_WEBPAGE_IMAGES_ENABLED:
 444                         displayWebpageImagesImageView.setImageDrawable(getResources().getDrawable(R.drawable.images_enabled));
 445                         break;
 446
 447                     case DomainsDatabaseHelper.DISPLAY_WEBPAGE_IMAGES_DISABLED:
 448                         displayWebpageImagesImageView.setImageDrawable(getResources().getDrawable(R.drawable.images_disabled));
 449                         break;
 450                 }
 451             }
 452
 453             @Override
 454             public void onNothingSelected(AdapterView<?> parent) {
 455                 // Do nothing.
 456             }
 457         });
 458
 459         return domainSettingsView;
 460     }
 461 }