chrome/content/preferences-mobile.js

   1 // # Security Settings User Interface for Mobile
   2
   3 // Utilities
   4 const { Services } = ChromeUtils.import("resource://gre/modules/Services.jsm");
   5 const { getBoolPref, getIntPref, setBoolPref, setIntPref, getCharPref }
   6   = Services.prefs;
   7
   8 let { getLocale, show_torbrowser_manual } =
   9     ChromeUtils.import("resource://torbutton/modules/utils.js", {});
  10
  11 // Description elements have the follow names.
  12 const descNames =
  13       [, "desc_standard", "desc_safer", "desc_safest"];
  14 // "Learn-more"-elements have the follow names.
  15 const linkNames =
  16       [, "link_standard", "link_safer", "link_safest"];
  17 // A single `state` object that reflects the user settings in this UI.
  18
  19 let state = { slider : 0, custom : false};
  20
  21 // Utility functions to convert between the legacy 4-value pref index
  22 // and the 3-valued security slider.
  23 let sliderPositionToPrefSetting = pos => [, 4, 2, 1][pos];
  24 let prefSettingToSliderPosition = pref => [, 3, 2, 2, 1][pref];
  25
  26 // Set the desired slider value and update UI.
  27 function torbutton_set_slider(sliderValue) {
  28   state.slider = sliderValue;
  29   let slider = document.getElementById("torbutton_sec_slider");
  30   slider.value = sliderValue.toString();
  31   let descs = descNames.map(name => document.getElementById(name));
  32   descs.forEach((desc, i) => {
  33     if (state.slider !== i) {
  34       desc.style.display = 'none';
  35     } else {
  36       desc.style.display = 'block';
  37     }
  38   });
  39   torbutton_save_security_settings();
  40 }
  41
  42 // Read prefs 'extensions.torbutton.security_slider' and
  43 // 'extensions.torbutton.security_custom', and initialize the UI.
  44 function torbutton_init_security_ui() {
  45   torbutton_set_slider(prefSettingToSliderPosition(
  46     getIntPref("extensions.torbutton.security_slider")));
  47   torbutton_set_learn_more_links();
  48 }
  49
  50 // Write the two prefs from the current settings.
  51 function torbutton_save_security_settings() {
  52   setIntPref("extensions.torbutton.security_slider",
  53              sliderPositionToPrefSetting(state.slider));
  54   setBoolPref("extensions.torbutton.security_custom", state.custom);
  55 }
  56
  57 // We follow the way we treat the links to the Tor Browser User Manual on the
  58 // Help Menu and on about:tor: if we have the manual available for a locale,
  59 // let's show the "Learn more"-link, otherwise hide it.
  60 function torbutton_set_learn_more_links() {
  61   let show_manual = show_torbrowser_manual();
  62   let locale = ""
  63   if (show_manual) {
  64     locale = getLocale();
  65   }
  66   let links = linkNames.map(name => document.getElementById(name));
  67   links.forEach(link => {
  68     if (show_manual && locale != "") {
  69       link.href= "https:/tb-manual.torproject.org/" + locale +
  70         "/security-slider.html";
  71       link.hidden = false;
  72     } else {
  73       link.hidden = true;
  74     }
  75   });
  76 }