app/src/main/java/com/stoutner/privacybrowser/SettingsFragment.java

   1 /**
   2  * Copyright 2016 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;
  21
  22 import android.annotation.SuppressLint;
  23 import android.content.SharedPreferences;
  24 import android.os.Build;
  25 import android.os.Bundle;
  26 import android.preference.Preference;
  27 import android.preference.PreferenceFragment;
  28 import android.view.MenuItem;
  29
  30 public class SettingsFragment extends PreferenceFragment {
  31     private SharedPreferences.OnSharedPreferenceChangeListener preferencesListener;
  32     private SharedPreferences savedPreferences;
  33
  34     @Override
  35     public void onCreate(Bundle savedInstanceState) {
  36         super.onCreate(savedInstanceState);
  37         addPreferencesFromResource(R.xml.preferences);
  38
  39         // Initialize savedPreferences.
  40         savedPreferences = getPreferenceScreen().getSharedPreferences();
  41
  42
  43         // Set the JavaScript-disabled search URL as the summary text for the JavaScript-disabled search preference when the preference screen is loaded.
  44         // The default is "https://duckduckgo.com/html/?q=".
  45         final Preference javaScriptDisabledSearchPreference = findPreference("javascript_disabled_search");
  46         javaScriptDisabledSearchPreference.setSummary(savedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q="));
  47
  48         // Set the summary text for "javascript_disabled_search_custom_url" (the default is "") and enable it if "javascript_disabled_search" is set to "Custom URL".
  49         final Preference javaScriptDisabledSearchCustomURLPreference = findPreference("javascript_disabled_search_custom_url");
  50         javaScriptDisabledSearchCustomURLPreference.setSummary(savedPreferences.getString("javascript_disabled_search_custom_url", ""));
  51         javaScriptDisabledSearchCustomURLPreference.setEnabled(javaScriptDisabledSearchPreference.getSummary().equals("Custom URL"));
  52
  53         // Set the JavaScript-enabed searchURL as the summary text for the JavaScript-enabled search preference when the preference screen is loaded.
  54         // The default is "https://duckduckgo.com/?q=".
  55         final Preference javaScriptEnabledSearchPreference = findPreference("javascript_enabled_search");
  56         javaScriptEnabledSearchPreference.setSummary(savedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q="));
  57
  58         // Set the summary text for "javascript_enabled_search_custom_url" (the default is "") and enable it if "javascript_enabled_search" is set to "Custom URL".
  59         final Preference javaScriptEnabledSearchCustomURLPreference = findPreference("javascript_enabled_search_custom_url");
  60         javaScriptEnabledSearchCustomURLPreference.setSummary(savedPreferences.getString("javascript_enabled_search_custom_url", ""));
  61         javaScriptEnabledSearchCustomURLPreference.setEnabled(javaScriptEnabledSearchPreference.getSummary().equals("Custom URL"));
  62
  63         // Set the homepage URL as the summary text for the Homepage preference when the preference screen is loaded.  The default is "https://www.duckduckgo.com".
  64         final Preference homepagePreference = findPreference("homepage");
  65         homepagePreference.setSummary(savedPreferences.getString("homepage", "https://www.duckduckgo.com"));
  66
  67
  68         // Listen for preference changes.
  69         preferencesListener = new SharedPreferences.OnSharedPreferenceChangeListener() {
  70             @Override
  71             // Remove Android Studio's warning about the dangers of using SetJavaScriptEnabled.
  72             @SuppressLint("SetJavaScriptEnabled")
  73             public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
  74
  75                 // Several keys need to update the toggleJavaScript icon.
  76                 MenuItem toggleJavaScript = MainWebViewActivity.mainMenu.findItem(R.id.toggleJavaScript);
  77
  78                 switch (key) {
  79                     case "javascript_enabled":
  80                         // Set javaScriptEnabled to the new state.  The default is false.
  81                         MainWebViewActivity.javaScriptEnabled = sharedPreferences.getBoolean("javascript_enabled", false);
  82
  83                         // Update mainWebView and reload the website.
  84                         MainWebViewActivity.mainWebView.getSettings().setJavaScriptEnabled(MainWebViewActivity.javaScriptEnabled);
  85                         MainWebViewActivity.mainWebView.reload();
  86
  87                         // Update the toggleJavaScript icon.
  88                         if (MainWebViewActivity.javaScriptEnabled) {
  89                             toggleJavaScript.setIcon(R.drawable.javascript_enabled);
  90                         } else {
  91                             if (MainWebViewActivity.firstPartyCookiesEnabled || MainWebViewActivity.domStorageEnabled) {
  92                                 toggleJavaScript.setIcon(R.drawable.warning);
  93                             } else {
  94                                 toggleJavaScript.setIcon(R.drawable.privacy_mode);
  95                             }
  96                         }
  97                         return;
  98
  99                     case "first_party_cookies_enabled":
 100                         // Set firstPartyCookiesEnabled to the new state.  The default is false.
 101                         MainWebViewActivity.firstPartyCookiesEnabled = sharedPreferences.getBoolean("first_party_cookies_enabled", false);
 102
 103                         // Update the checkbox in the options menu.
 104                         MenuItem firstPartyCookiesMenuItem = MainWebViewActivity.mainMenu.findItem(R.id.toggleFirstPartyCookies);
 105                         firstPartyCookiesMenuItem.setChecked(MainWebViewActivity.firstPartyCookiesEnabled);
 106
 107                         // Update mainWebView and reload the website.
 108                         MainWebViewActivity.cookieManager.setAcceptCookie(MainWebViewActivity.firstPartyCookiesEnabled);
 109                         MainWebViewActivity.mainWebView.reload();
 110
 111                         // Update the toggleJavaScript icon.
 112                         if (MainWebViewActivity.javaScriptEnabled) {
 113                             toggleJavaScript.setIcon(R.drawable.javascript_enabled);
 114                         } else {
 115                             if (MainWebViewActivity.firstPartyCookiesEnabled || MainWebViewActivity.domStorageEnabled) {
 116                                 toggleJavaScript.setIcon(R.drawable.warning);
 117                             } else {
 118                                 toggleJavaScript.setIcon(R.drawable.privacy_mode);
 119                             }
 120                         }
 121                         return;
 122
 123                     case "third_party_cookies_enabled":
 124                         // Set thirdPartyCookiesEnabled to the new state.  The default is false.
 125                         MainWebViewActivity.thirdPartyCookiesEnabled = sharedPreferences.getBoolean("third_party_cookies_enabled", false);
 126
 127                         // Update the checkbox in the options menu.
 128                         MenuItem thirdPartyCookiesMenuItem = MainWebViewActivity.mainMenu.findItem(R.id.toggleThirdPartyCookies);
 129                         thirdPartyCookiesMenuItem.setChecked(MainWebViewActivity.thirdPartyCookiesEnabled);
 130
 131                         // Update mainWebView and reload the website if API >= 21.
 132                         if (Build.VERSION.SDK_INT >= 21) {
 133                             MainWebViewActivity.cookieManager.setAcceptThirdPartyCookies(MainWebViewActivity.mainWebView, MainWebViewActivity.thirdPartyCookiesEnabled);
 134                             MainWebViewActivity.mainWebView.reload();
 135                         }
 136                         return;
 137
 138                     case "dom_storage_enabled":
 139                         // Set domStorageEnabled to the new state.  The default is false.
 140                         MainWebViewActivity.domStorageEnabled = sharedPreferences.getBoolean("dom_storage_enabled", false);
 141
 142                         // Update the checkbox in the options menu.
 143                         MenuItem domStorageMenuItem = MainWebViewActivity.mainMenu.findItem(R.id.toggleDomStorage);
 144                         domStorageMenuItem.setChecked(MainWebViewActivity.domStorageEnabled);
 145
 146                         // Update mainWebView and reload the website.
 147                         MainWebViewActivity.mainWebView.getSettings().setDomStorageEnabled(MainWebViewActivity.domStorageEnabled);
 148                         MainWebViewActivity.mainWebView.reload();
 149
 150                         // Update the toggleJavaScript icon.
 151                         if (MainWebViewActivity.javaScriptEnabled) {
 152                             toggleJavaScript.setIcon(R.drawable.javascript_enabled);
 153                         } else {
 154                             if (MainWebViewActivity.firstPartyCookiesEnabled || MainWebViewActivity.domStorageEnabled) {
 155                                 toggleJavaScript.setIcon(R.drawable.warning);
 156                             } else {
 157                                 toggleJavaScript.setIcon(R.drawable.privacy_mode);
 158                             }
 159                         }
 160                         return;
 161
 162                     case "javascript_disabled_search":
 163                         // Set the new search URL as the summary text for the JavaScript-disabled search preference.  The default is "https://duckduckgo.com/html/?q=".
 164                         javaScriptDisabledSearchPreference.setSummary(sharedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q="));
 165
 166                         // Enable "javascript_disabled_search_custom_url" if "javascript_disabled_search" is set to "Custom URL".
 167                         javaScriptDisabledSearchCustomURLPreference.setEnabled(javaScriptDisabledSearchPreference.getSummary().equals("Custom URL"));
 168
 169                         // Update the javaScriptDisabledSearchURL variable.  The default is "https://duckduckgo.com/html/?q=".
 170                         MainWebViewActivity.javaScriptDisabledSearchURL = sharedPreferences.getString("javascript_disabled_search", "https://duckduckgo.com/html/?q=");
 171                         return;
 172
 173                     case "javascript_disabled_search_custom_url":
 174                         // Set the new custom search URL as the summary text for "javascript_disabled_search_custom_url".  The default is "".
 175                         javaScriptDisabledSearchCustomURLPreference.setSummary(sharedPreferences.getString("javascript_disabled_search_custom_url", ""));
 176
 177                         // Update javaScriptDisabledSearchCustomURL.  The default is "".
 178                         MainWebViewActivity.javaScriptDisabledSearchCustomURL = sharedPreferences.getString("javascript_disabled_search_custom_url", "");
 179
 180                     case "javascript_enabled_search":
 181                         // Set the new search URL as the summary text for the JavaScript-enabled search preference.  The default is "https://duckduckgo.com/?q=".
 182                         javaScriptEnabledSearchPreference.setSummary(sharedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q="));
 183
 184                         // Enable "javascript_enabled_search_custom_url" if "javascript_enabled_search" is set to "Custom URL".
 185                         javaScriptEnabledSearchCustomURLPreference.setEnabled(javaScriptEnabledSearchPreference.getSummary().equals("Custom URL"));
 186
 187                         // Update the javaScriptEnabledSearchURL variable.  The default is "https://duckduckgo.com/?q=".
 188                         MainWebViewActivity.javaScriptEnabledSearchURL = sharedPreferences.getString("javascript_enabled_search", "https://duckduckgo.com/?q=");
 189                         return;
 190
 191                     case "javascript_enabled_search_custom_url":
 192                         // Set the new custom search URL as the summary text for "javascript_enabled_search_custom_url".  The default is "".
 193                         javaScriptEnabledSearchCustomURLPreference.setSummary(sharedPreferences.getString("javascript_enabled_search_custom_url", ""));
 194
 195                         // Update javaScriptEnabledSearchCustomURL.  The default is "".
 196                         MainWebViewActivity.javaScriptEnabledSearchCustomURL = sharedPreferences.getString("javascript_enabled_search_custom_url", "");
 197
 198                     case "homepage":
 199                         // Set the new homepage URL as the summary text for the Homepage preference.  The default is "https://www.duckduckgo.com".
 200                         homepagePreference.setSummary(sharedPreferences.getString("homepage", "https://www.duckduckgo.com"));
 201
 202                         // Update the homepage variable.  The default is "https://www.duckduckgo.com".
 203                         MainWebViewActivity.homepage = sharedPreferences.getString("homepage", "https://www.duckduckgo.com");
 204                         return;
 205
 206                     case "swipe_to_refresh_enabled":
 207                         // Set swipeToRefreshEnabled to the new state.  The default is true.
 208                         MainWebViewActivity.swipeToRefreshEnabled = sharedPreferences.getBoolean("swipe_to_refresh_enabled", true);
 209
 210                         // Update swipeRefreshLayout to match the new state.
 211                         MainWebViewActivity.swipeToRefresh.setEnabled(MainWebViewActivity.swipeToRefreshEnabled);
 212                         return;
 213
 214                     // If no match, do nothing.
 215                     default:
 216                 }
 217             }
 218         };
 219
 220         // Register the listener.
 221         savedPreferences.registerOnSharedPreferenceChangeListener(preferencesListener);
 222     }
 223
 224     // It is necessary to re-register the listener on every resume or it will randomly stop working because apps can be paused and resumed at any time
 225     // even while running in the foreground.
 226     @Override
 227     public void onResume() {
 228         super.onResume();
 229         savedPreferences.registerOnSharedPreferenceChangeListener(preferencesListener);
 230     }
 231
 232     @Override
 233     public void onPause() {
 234         super.onPause();
 235         savedPreferences.unregisterOnSharedPreferenceChangeListener(preferencesListener);
 236     }
 237 }