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.content.SharedPreferences;
  23 import android.os.Build;
  24 import android.os.Bundle;
  25 import android.preference.Preference;
  26 import android.preference.PreferenceFragment;
  27 import android.view.MenuItem;
  28
  29 public class SettingsFragment extends PreferenceFragment {
  30     private SharedPreferences.OnSharedPreferenceChangeListener preferencesListener;
  31     private SharedPreferences savedPreferences;
  32
  33     @Override
  34     public void onCreate(Bundle savedInstanceState) {
  35         super.onCreate(savedInstanceState);
  36         addPreferencesFromResource(R.xml.preferences);
  37
  38         final Preference homepagePreference = findPreference("homepage");
  39
  40         // Initialize savedPreferences.
  41         savedPreferences = getPreferenceScreen().getSharedPreferences();
  42
  43         // 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".
  44         homepagePreference.setSummary(savedPreferences.getString("homepage", "https://www.duckduckgo.com"));
  45
  46         // Listen for preference changes.
  47         preferencesListener = new SharedPreferences.OnSharedPreferenceChangeListener() {
  48             @Override
  49             public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) {
  50
  51                 // Several keys need to update the toggleJavaScript icon.
  52                 MenuItem toggleJavaScript = MainWebViewActivity.mainMenu.findItem(R.id.toggleJavaScript);
  53
  54                 switch (key) {
  55                     case "javascript_enabled":
  56                         // Set javaScriptEnabled to the new state.  The default is false.
  57                         MainWebViewActivity.javaScriptEnabled = sharedPreferences.getBoolean("javascript_enabled", false);
  58
  59                         // Update mainWebView and reload the website.
  60                         MainWebViewActivity.mainWebView.getSettings().setJavaScriptEnabled(MainWebViewActivity.javaScriptEnabled);
  61                         MainWebViewActivity.mainWebView.reload();
  62
  63                         // Update the toggleJavaScript icon.
  64                         if (MainWebViewActivity.javaScriptEnabled) {
  65                             toggleJavaScript.setIcon(R.drawable.javascript_enabled);
  66                         } else {
  67                             if (MainWebViewActivity.firstPartyCookiesEnabled || MainWebViewActivity.domStorageEnabled) {
  68                                 toggleJavaScript.setIcon(R.drawable.warning);
  69                             } else {
  70                                 toggleJavaScript.setIcon(R.drawable.privacy_mode);
  71                             }
  72                         }
  73                         return;
  74
  75                     case "first_party_cookies_enabled":
  76                         // Set firstPartyCookiesEnabled to the new state.  The default is false.
  77                         MainWebViewActivity.firstPartyCookiesEnabled = sharedPreferences.getBoolean("first_party_cookies_enabled", false);
  78
  79                         // Update the checkbox in the options menu.
  80                         MenuItem firstPartyCookiesMenuItem = MainWebViewActivity.mainMenu.findItem(R.id.toggleFirstPartyCookies);
  81                         firstPartyCookiesMenuItem.setChecked(MainWebViewActivity.firstPartyCookiesEnabled);
  82
  83                         // Update mainWebView and reload the website.
  84                         MainWebViewActivity.cookieManager.setAcceptCookie(MainWebViewActivity.firstPartyCookiesEnabled);
  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 "third_party_cookies_enabled":
 100                         // Set thirdPartyCookiesEnabled to the new state.  The default is false.
 101                         MainWebViewActivity.thirdPartyCookiesEnabled = sharedPreferences.getBoolean("third_party_cookies_enabled", false);
 102
 103                         // Update the checkbox in the options menu.
 104                         MenuItem thirdPartyCookiesMenuItem = MainWebViewActivity.mainMenu.findItem(R.id.toggleThirdPartyCookies);
 105                         thirdPartyCookiesMenuItem.setChecked(MainWebViewActivity.thirdPartyCookiesEnabled);
 106
 107                         // Update mainWebView and reload the website if API >= 21.
 108                         if (Build.VERSION.SDK_INT >= 21) {
 109                             MainWebViewActivity.cookieManager.setAcceptThirdPartyCookies(MainWebViewActivity.mainWebView, MainWebViewActivity.thirdPartyCookiesEnabled);
 110                             MainWebViewActivity.mainWebView.reload();
 111                         }
 112                         return;
 113
 114                     case "dom_storage_enabled":
 115                         // Set domStorageEnabled to the new state.  The default is false.
 116                         MainWebViewActivity.domStorageEnabled = sharedPreferences.getBoolean("dom_storage_enabled", false);
 117
 118                         // Update the checkbox in the options menu.
 119                         MenuItem domStorageMenuItem = MainWebViewActivity.mainMenu.findItem(R.id.toggleDomStorage);
 120                         domStorageMenuItem.setChecked(MainWebViewActivity.domStorageEnabled);
 121
 122                         // Update mainWebView and reload the website.
 123                         MainWebViewActivity.mainWebView.getSettings().setDomStorageEnabled(MainWebViewActivity.domStorageEnabled);
 124                         MainWebViewActivity.mainWebView.reload();
 125
 126                         // Update the toggleJavaScript icon.
 127                         if (MainWebViewActivity.javaScriptEnabled) {
 128                             toggleJavaScript.setIcon(R.drawable.javascript_enabled);
 129                         } else {
 130                             if (MainWebViewActivity.firstPartyCookiesEnabled || MainWebViewActivity.domStorageEnabled) {
 131                                 toggleJavaScript.setIcon(R.drawable.warning);
 132                             } else {
 133                                 toggleJavaScript.setIcon(R.drawable.privacy_mode);
 134                             }
 135                         }
 136                         return;
 137
 138                     case "homepage":
 139                         // Set the new homepage URL as the summary text for the Homepage preference.  The default is "https://www.duckduckgo.com".
 140                         homepagePreference.setSummary(sharedPreferences.getString("homepage", "https://www.duckduckgo.com"));
 141
 142                         // Update the homepage variable.  The default is "https://www.duckduckgo.com".
 143                         MainWebViewActivity.homepage = sharedPreferences.getString("homepage", "https://www.duckduckgo.com");
 144                         return;
 145
 146                     case "swipe_to_refresh_enabled":
 147                         // Set swipeToRefreshEnabled to the new state.  The default is true.
 148                         MainWebViewActivity.swipeToRefreshEnabled = sharedPreferences.getBoolean("swipe_to_refresh_enabled", true);
 149
 150                         // Update swipeRefreshLayout to match the new state.
 151                         MainWebViewActivity.swipeToRefresh.setEnabled(MainWebViewActivity.swipeToRefreshEnabled);
 152
 153                     // If no match, do nothing.
 154                     default:
 155                 }
 156             }
 157         };
 158
 159         // Register the listener.
 160         savedPreferences.registerOnSharedPreferenceChangeListener(preferencesListener);
 161     }
 162
 163     // It is necessary to reregister the listener on every resume or it will randomly stop working for the user because apps can be paused and resumed at any time,
 164     // even when they are in the foreground.
 165     @Override
 166     public void onResume() {
 167         super.onResume();
 168         savedPreferences.registerOnSharedPreferenceChangeListener(preferencesListener);
 169     }
 170
 171     @Override
 172     public void onPause() {
 173         super.onPause();
 174         savedPreferences.unregisterOnSharedPreferenceChangeListener(preferencesListener);
 175     }
 176 }