微信读书自动深色模式

根据系统设置自动切换深色模式，深色用的是官方的样式
当前为 2023-10-09 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         微信读书自动深色模式
// @version      0.1.2
// @description  根据系统设置自动切换深色模式，深色用的是官方的样式
// @namespace    https://weread.qq.com/
// @match        https://weread.qq.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=weread.qq.com
// @author       bowencool
// @license      MIT
// @homepageURL  https://gf.qytechs.cn/scripts/447649
// @supportURL   https://github.com/bowencool/Tampermonkey-Scripts/issues
// @grant        none
// ==/UserScript==

(function () {
  "use strict";

  function waitForElementToExist(selector) {
    return new Promise((resolve) => {
      if (document.querySelector(selector)) {
        return resolve(document.querySelector(selector));
      }

      const observer = new MutationObserver(() => {
        if (document.querySelector(selector)) {
          resolve(document.querySelector(selector));
          observer.disconnect();
        }
      });

      observer.observe(document.body, {
        subtree: true,
        childList: true,
      });
    });
  }

  async function toggle(
    isDarkMode = window.matchMedia("(prefers-color-scheme: dark)").matches
  ) {
    const currentThemeIsWhite =
      document.body.classList.contains("wr_whiteTheme");
    console.log({ isDarkMode, currentThemeIsWhite });
    if (isDarkMode) {
      if (currentThemeIsWhite) {
        // if (location.pathname.startsWith("/web/reader")) {
        //   const button = await waitForElementToExist(
        //     ".readerControls_item.dark"
        //   );
        //   button.click();
        // } else {
        document.body.classList.remove("wr_whiteTheme");
        // }
      }
    } else {
      if (!currentThemeIsWhite) {
        // if (location.pathname.startsWith("/web/reader")) {
        //   const button = await waitForElementToExist(
        //     ".readerControls_item.white"
        //   );
        //   button.click();
        // } else {
        document.body.classList.add("wr_whiteTheme");
        // }
      }
    }
  }
  toggle();
  window
    .matchMedia("(prefers-color-scheme: dark)")
    .addEventListener("change", (e) => {
      toggle(e.matches);
    });
})();
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