rCore-Tutorial-v3/ch9/settings.js

(function(){function changeSetting(settingName,value){updateLocalStorage("rustdoc-"+settingName,value);switch(settingName){case"theme":case"preferred-dark-theme":case"preferred-light-theme":case"use-system-theme":updateSystemTheme();updateLightAndDark();break}}function handleKey(ev){if(ev.ctrlKey||ev.altKey||ev.metaKey){return}switch(getVirtualKey(ev)){case"Enter":case"Return":case"Space":ev.target.checked=!ev.target.checked;ev.preventDefault();break}}function showLightAndDark(){addClass(document.getElementById("theme").parentElement.parentElement,"hidden");removeClass(document.getElementById("preferred-light-theme").parentElement.parentElement,"hidden");removeClass(document.getElementById("preferred-dark-theme").parentElement.parentElement,"hidden")}function hideLightAndDark(){addClass(document.getElementById("preferred-light-theme").parentElement.parentElement,"hidden");addClass(document.getElementById("preferred-dark-theme").parentElement.parentElement,"hidden");removeClass(document.getElementById("theme").parentElement.parentElement,"hidden")}function updateLightAndDark(){if(getSettingValue("use-system-theme")!=="false"){showLightAndDark()}else{hideLightAndDark()}}function setEvents(){updateLightAndDark();onEachLazy(document.getElementsByClassName("slider"),function(elem){var toggle=elem.previousElementSibling;var settingId=toggle.id;var settingValue=getSettingValue(settingId);if(settingValue!==null){toggle.checked=settingValue==="true"}toggle.onchange=function(){changeSetting(this.id,this.checked)};toggle.onkeyup=handleKey;toggle.onkeyrelease=handleKey});onEachLazy(document.getElementsByClassName("select-wrapper"),function(elem){var select=elem.getElementsByTagName("select")[0];var settingId=select.id;var settingValue=getSettingValue(settingId);if(settingValue!==null){select.value=settingValue}select.onchange=function(){changeSetting(this.id,this.value)}})}window.addEventListener("DOMContentLoaded",setEvents)})()