src/librustdoc/html/static/settings.js

   1 /*!
   2  * Copyright 2018 The Rust Project Developers. See the COPYRIGHT
   3  * file at the top-level directory of this distribution and at
   4  * http://rust-lang.org/COPYRIGHT.
   5  *
   6  * Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   7  * http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   8  * <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   9  * option. This file may not be copied, modified, or distributed
  10  * except according to those terms.
  11  */
  12
  13 (function () {
  14     function changeSetting(settingName, isEnabled) {
  15         updateLocalStorage('rustdoc-' + settingName, isEnabled);
  16     }
  17
  18     function getSettingValue(settingName) {
  19         return getCurrentValue('rustdoc-' + settingName);
  20     }
  21
  22     function setEvents() {
  23         var elems = document.getElementsByClassName("slider");
  24         if (!elems || elems.length === 0) {
  25             return;
  26         }
  27         for (var i = 0; i < elems.length; ++i) {
  28             var toggle = elems[i].previousElementSibling;
  29             var settingId = toggle.id;
  30             var settingValue = getSettingValue(settingId);
  31             if (settingValue !== null) {
  32                 toggle.checked = settingValue === "true";
  33             }
  34             toggle.onchange = function() {
  35                 changeSetting(this.id, this.checked);
  36             };
  37         }
  38     }
  39
  40     setEvents();
  41 })();